CN104091080B - Intelligent bodybuilding guidance system and closed-loop guidance method thereof - Google Patents

Abstract

The invention discloses an intelligent fitness guidance system and a closed-loop guidance method thereof, which are characterized in that the components include: a remote service platform composed of a questionnaire unit, a movement target reasoning unit, a movement plan generation unit, and a fitness management unit, and a health sign test module , exercise ability test module, intelligent fitness equipment module; the questionnaire unit is used to collect user basic information and health information; the health sign test module is used to collect the test index data of the user's initial health signs; the exercise ability test module is used to collect the user's initial exercise Ability test index data; exercise target reasoning unit is used to obtain user’s exercise target; exercise plan generation unit is used to generate exercise plan; intelligent fitness equipment module is used to execute exercise plan; fitness management unit is used to evaluate exercise effect and exercise plan adjustment. The present invention realizes the demand for scientific fitness through a complete set of software and hardware systems of detection, evaluation, fitness and feedback, based on user health detection.

Description

An intelligent fitness guidance system and its closed-loop guidance method

technical field

The invention relates to a sports fitness and service system, in particular to an intelligent fitness training guidance system and a closed-loop guidance method thereof.

Background technique

With the improvement of national living standards and the rapid development of the economy, people are no longer concerned about basic necessities of life, but demand for health and stress relief is also increasing. Health and decompression must be inseparable from exercise and fitness, and the consumption of people in the field of exercise and fitness is also increasing. gradually improving. The field of sports and fitness is one of the pillars of the service industry. Various large and small fitness venues have been developed to meet this demand, and the industrialization of sports has also been gradually developed.

Although the fitness industry is gradually developing and nearly mature, there are still many problems, as follows:

1. Most of the current fitness facilities focus on the training equipment, while ignoring the comprehensive detection of the user's health signs and exercise ability. There are large loopholes in the fitness guidance, and there are invisible risks to the user's health, which may easily cause exercise. Injuries, and the lack of regular testing to assess the effect of fitness, it is difficult to assess the effectiveness of fitness guidance programs.

2. The fitness guidance for users in fitness places mainly relies on the personal experience of fitness coaches, lacks a complete set of fitness guidance system, lacks long-term planning for users' fitness goals and fitness effects, and only provides one-time guidance for users without basis The fitness effect is used to adjust the guidance program, so that a systematic fitness guidance method cannot be formed, and the fitness guidance lacks scientificity and coherence.

3. The management of users in fitness places is primitive and extensive, often only focusing on the number of workouts of users, and the fitness equipment in fitness places is relatively isolated, and there is no overall and quantitative evaluation of the amount of exercise performed by users, so it is difficult to evaluate the fitness effect of users. Users themselves also lack a macroscopic grasp of fitness.

4. Traditional fitness venues lack batch collection of user health information. Fitness coaches mostly focus on body shaping and lack of a comprehensive grasp of health knowledge. Therefore, users with chronic diseases or disease history cannot be given correct fitness training Guidance, the risk of exercise is relatively high.

5. The fitness equipment in traditional fitness places has a low degree of intelligence, and the exercise process is relatively rigid, lacking humanized services.

At present, the country is also very concerned about the physical health of the people, especially the physical health of students or other characteristic groups (such as the elderly, long-term sedentary groups, etc.), and the investment in sports and fitness for college students is also increasing, but with little effect. Many management agencies also recognize the importance of physical health. For example, colleges and universities have built gymnasiums in response to national policies. However, due to the lack of a complete set of software and hardware systems from detection to fitness for people's physical health, the focus on physical health is only limited. Staying in the form, the guidance is scattered and lacks systematicness, and the physical health guidance also lacks practical value.

Contents of the invention

In order to avoid the shortcomings of the existing technology, the present invention proposes a complete set of software and hardware intelligent fitness guidance system and its closed-loop guidance method including detection, evaluation, fitness and feedback. Users provide intelligent fitness guidance to meet scientific and intelligent fitness needs.

The present invention adopts following technical scheme for solving technical problems:

An intelligent fitness guidance system of the present invention is characterized in that it consists of: a remote service platform consisting of a questionnaire unit, an exercise target reasoning unit, an exercise plan generation unit, and a fitness management unit, a health sign test module, an exercise ability test module, an intelligent Fitness equipment module;

The questionnaire unit is used to collect basic user information and user health information and provide them to the sports goal reasoning unit, and at the same time, according to the basic user information and user health information, perform user screening to obtain suitable exercise and fitness groups, and perform exercise risk assessment Obtaining exercise risk assessment results, the exercise risk assessment results including: high exercise risk, intermediate exercise risk and low exercise risk;

The health sign test module is used to collect the test index data of the user's initial health sign and provide it to the exercise goal reasoning unit;

The exercise ability test module includes an aerobic endurance tester and a muscle strength tester, which are used to collect test index data of the user's initial exercise ability and provide it to the exercise target reasoning unit;

The exercise goal inference unit performs inference according to the user's health information, the test index data of the initial health signs and the test index data of the initial exercise ability, obtains the user's exercise goal and provides it to the exercise plan generation unit;

The exercise plan generation unit determines the exercise items, exercise duration and exercise frequency according to the exercise goal, and determines the user's exercise intensity according to the exercise goal and the test index data of the initial exercise ability, and according to the exercise risk assessment result Determine whether medical supervision is required during exercise, and the exercise program is provided to the intelligent fitness equipment module for execution by the exercise program, exercise duration, exercise frequency, exercise intensity and whether medical supervision is required; the exercise program includes warm-up Items, main items and finishing items, the item selection of the main items includes endurance training items, resistance training items, flexibility training items, comprehensive training items, and the selected items are determined by the sports goals;

The intelligent fitness equipment module includes an endurance training unit, a strength training unit and a somatosensory game fitness unit; the endurance training unit receives an exercise program that includes an endurance training item; the strength training unit receives an exercise program that includes a resistance training item, The somatosensory game fitness unit receives an exercise program that includes flexibility training items or comprehensive training items; the intelligent fitness equipment module collects the completion results of the user's execution of the exercise program; the completion results include: the selection results of the exercise items , the execution time of the exercise duration, the execution result of the exercise intensity;

The fitness management unit determines the exercise program execution cycle according to the exercise goal, and after the exercise program execution cycle is completed, uses the health sign test module and the exercise capacity test module to obtain the updated test index data of the user's health signs respectively and the test index data of exercise ability, and compare and analyze with the test index data of the initial user’s health signs and the test index data of exercise ability, and obtain the absolute value of the difference between the health signs and exercise ability respectively, so that the exercise The overall plan is adjusted.

The fitness management unit retrieves the completed results of the intelligent fitness equipment module to calculate the total amount of exercise, thereby evaluating the effect of the exercise program, and the obtained evaluation results are used to evaluate the exercise intensity or exercise intensity of the exercise program. The duration is adjusted.

The feature of the intelligent fitness guidance system of the present invention is also that,

The health sign testing module includes: a human body composition tester, a cardiovascular function tester, a lung function tester, a body balance tester and a bone density tester; the body fat percentage is obtained by the human body composition tester, and the The blood pressure value, growth index and subendocardial myocardial viability rate obtained by the cardiovascular function tester, the forced vital capacity, the ratio of the forced expiratory volume in the first second to the forced vital capacity and the forced expiratory capacity in the first second were obtained by the pulmonary function tester. The ratio of gas volume to predicted value, the central shaking velocity obtained by the body balance tester, and the bone strength index and T value obtained by the bone density tester;

From the body fat percentage, blood pressure value, growth index and subendocardial myocardial viability rate, forced vital capacity, the ratio of forced expiratory volume in the first second to forced vital capacity and the ratio of forced expiratory volume in the first second to the predicted value, the center The shaking speed, bone strength index and T value constitute the test index data of the user's initial health signs.

The exercise capacity testing module includes an aerobic endurance tester and a muscle strength tester, and speed, gradient, heart rate and Meter values are obtained by the aerobic endurance tester; maximum strength is obtained by the muscle strength tester; Said speed, slope, heart rate and Meter value and maximum strength constitute the test index data of said initial exercise capacity.

A kind of closed-loop guidance method that utilizes intelligent fitness guidance system of the present invention is characterized in that it is carried out according to the following steps:

Step 1. Collect user information before exercise;

Step 1.1. Obtain the user's basic information through registration and obtain the user's health information through the exercise risk assessment questionnaire;

Step 1.2. According to the basic information and health information, perform user screening to obtain suitable exercise and fitness groups, and perform exercise risk assessment to obtain exercise risk assessment results;

Step 2. Pre-exercise health sign test;

Perform a health sign test on the people suitable for exercise and fitness to obtain the user's initial health sign parameters;

Step 3. Pre-exercise exercise ability test;

Performing an exercise ability test on the suitable exercise and fitness group to obtain the user's initial exercise ability parameters;

Step 4, the user's movement target is determined;

Obtain the user's health status to be improved from the exercise risk assessment questionnaire, the user's initial health sign parameters and the user's initial exercise capacity parameters, thereby determining the user's exercise goal;

Step 5, target health sign parameters and target exercise capacity parameters are determined;

Determine the target health sign parameter according to the user's exercise goal and the user's initial health sign parameter, and determine the target exercise ability parameter according to the user's exercise goal and the user's initial exercise ability parameter;

Step 6, motion plan generation;

An initial exercise program is generated from the exercise target, the user's initial exercise ability parameters and exercise risk assessment results, and the initial exercise program includes exercise items, exercise intensity, exercise duration, exercise frequency and exercise cycle;

Step 7, initial exercise program execution and feedback;

Guide the user's fitness exercise according to the initial exercise plan, and collect exercise feedback information after the user completes the initial exercise plan;

Step 8. Initial adjustment and execution of the initial exercise program;

Adjust the exercise intensity and exercise duration of the initial exercise program according to the exercise feedback information, obtain the initially adjusted exercise program and provide it to the user to execute according to the exercise cycle;

Step 9, post-exercise health sign test and exercise capacity test;

Carry out the health sign test and the exercise ability test on the user who has performed the exercise cycle again, and obtain updated health sign parameters and updated exercise ability parameters respectively;

Step 10, judging and evaluating the fitness effect after exercise;

Comparing the updated health sign parameter with the target health sign parameter and/or the updated exercise capacity parameter with the target exercise capacity parameter, if the updated health sign parameter is smaller than the target health sign parameter and/or the If the updated athletic ability parameter is less than the target athletic ability parameter, the fitness effect is not achieved, and step 11 is performed; otherwise, the fitness effect is achieved, and the fitness guidance is ended;

Step 11, the readjustment and execution of the exercise plan after the initial adjustment;

According to the updated health sign parameters and the target health sign parameters, the exercise items, exercise intensity and exercise duration of the initially adjusted exercise program are readjusted, and the readjusted exercise program is obtained and provided to step 7 as The initial motion plan continues to execute, thus forming a closed-loop structure.

Compared with the prior art, the beneficial effects of the present invention are reflected in:

1. The present invention integrates a whole set of health sign detection instruments, exercise ability detection instruments and intelligent fitness equipment through the network, and uses each unit in the remote service platform to perform inference calculations to realize the collection of user health information, health status, etc. And the collection of exercise ability test data, the evaluation of the user's health status, the reasoning of exercise goals, the generation of exercise programs, the execution of user exercise programs, intelligent fitness equipment will automatically save and upload the user's fitness exercise completion results, and the system A complete set of hardware and software system that evaluates the fitness effect of the exercise program by performing quantitative calculations on users and regularly testing users. Through the interaction of information, the fitness guidance process can achieve integrated management, and the fitness guidance is more scientific and systematic. , to make up for the lack of a complete set of fitness guidance methods in the current fitness field, resulting in the isolated existence of fitness equipment in the traditional fitness field, the lack of fitness guidance programs based on scientific testing before fitness, and the lack of quantitative statistics on the amount of fitness exercise , Lack of quantitative evaluation of fitness effects, etc., so as to realize scientific fitness to guide batch users.

2. The health sign detection instrument and exercise ability detection instrument integrated in the present invention have passed the verification of effectiveness and reliability, are low in cost, are non-invasive, self-service instruments, are easy to operate, can be used in batches, and are used to detect users Health signs: body composition, cardiorespiratory function at rest, balance, bone density and bone strength, exercise capacity: muscle strength and aerobic endurance, laying the foundation for fitness guidance programs, and solving the current isolation of fitness equipment in the field of fitness Existence and lack of scientific testing before fitness. The test results of each test instrument will be directly uploaded and saved. Users can log in to the remote service platform to view, and fitness coaches can also retrieve, review, and batch manage user information through the remote service platform, making fitness guidance more scientific and convenient. Provide a reference for the development of the site.

3. The present invention integrates the idea of scientific fitness into the system, determines the exercise target through the exercise target reasoning unit, and determines the exercise plan by the exercise target, thereby performing personalized guidance and management on the crowd, realizing the function of automatically generating exercise plans, allowing The generation of motion plans can also be informatized and intelligent.

4. The fitness equipment in the present invention is all intelligent fitness equipment. The fitness equipment is connected to the network and downloads the user's exercise program from the remote service platform. The user's exercise program includes exercise items, exercise intensity, and duration. After the user logs in, the equipment will Automatically run according to the exercise mode, exercise intensity and duration controlled by the program, for users to implement fitness exercises. Users can pause at any time during the whole process. The completed results of the intelligent fitness equipment module will be automatically saved and uploaded to the remote service platform. The fitness equipment will remind the user of the next fitness item. The consistency of the fitness system improves the user experience, and it can quantitatively calculate the total amount of the user's exercise and evaluate the expected fitness effect, which makes up for the lack of fitness in the field of exercise.

5. The present invention can not only be applied to the field of sports and fitness, guide the public to exercise, improve the level of intelligence and informatization in the field of fitness, but also can be applied to colleges and universities or other characteristic groups (such as the elderly, static and sedentary groups, etc.), as colleges and universities Or other institutions to guide the physical health management of students or other characteristic groups, starting from the establishment of files, to improve the physical health of the population within a certain period of time, to guide the population to exercise in a targeted manner, to improve the physical health of the population, and to improve the national physical health Comprehensive guidance level.

6. The present invention includes a somatosensory game fitness unit, which connects third-party somatosensory games to the system, conducts fitness training through the guidance of somatosensory games, and provides different somatosensory games among similar fitness effects for users to choose according to the user's exercise goals , compared with traditional fitness programs, somatosensory game fitness is more entertaining and interesting, and users have higher compliance, achieving the purpose of fun fitness.

7. The present invention can manage user information remotely and in batches, provide remote supervision and guidance on user fitness, fitness coaches can provide health education to users, supervise and urge users to exercise in real time, and improve user compliance.

Description of drawings

Fig. 1 is a schematic structural diagram of the system of the present invention;

Fig. 2 is a schematic diagram of the operation steps of the present invention.

detailed description

In this embodiment, as shown in Figure 1, the composition of a kind of intelligent body-building guidance system includes: the long-distance service platform that is made of questionnaire unit, exercise target reasoning unit, exercise plan generation unit, fitness management unit, health sign test module, The exercise ability test module, the intelligent fitness equipment module; the remote service platform does not directly interact with each module, but uses database interaction with each module to realize the interaction of various information. The database uses the MySql database. Each module accesses the MySql database to obtain relevant data for operation, and then returns the result data to the database. The remote service platform obtains the result data for operation and display.

The questionnaire unit is used to collect basic user information and user health information and provide them to the exercise goal reasoning unit. At the same time, according to the user basic information and user health information, user screening is performed to obtain suitable exercise fitness groups, and exercise risk assessment is performed to obtain exercise risk assessment Results: During the specific implementation, the remote service platform first collects basic user information through user registration: name, gender, age, weight, height, and emergency contact number. After statistical analysis, it is found that these basic information are what users are most willing to fill in. And the one that can best represent the user's personal characteristics. The emergency contact number is to ensure that the user's relatives can be found after an emergency occurs; this system is aimed at users aged 15-69. Users or pregnant women need to be screened out, which is not within the scope of information collection in this unit; then pass the PAR-Q questionnaire, exercise contraindication screening questionnaire, cardiovascular risk assessment questionnaire and common chronic diseases or discomfort surveys Questionnaires collect user health information;

The PAR-Q questionnaire and the exercise contraindication screening questionnaire are used to exclude users whose exercise harms outweigh the benefits; users who tick any item in the PARQ questionnaire or the exercise contraindication screening questionnaire indicate that their exercise harms outweigh the benefits, so these users are excluded. For users of this category, it is displayed on the website that “users are advised to go to a medical unit for further diagnosis and treatment, and not to participate in exhaustive exercise tests and fitness exercises for the time being”; obtained from the information collected by the user’s basic information, PARQ questionnaire and exercise contraindication screening questionnaire Suitable for sports and fitness groups;

For the cardiovascular risk assessment questionnaire, exercise risk assessment is performed in three steps including disease screening, symptom screening, and risk factor screening. The results of exercise risk assessment include: high-risk exercise risk, medium-risk exercise risk, and low-risk exercise risk; The risk assessment questionnaire includes disease screening, symptom screening and risk factor screening; if one of the "disease screening" or "symptom screening" is checked as "yes", the user is determined to be a high-risk group, and the user is recorded. The name of the disease, the exercise test needs to be given medical supervision; users with more than or equal to two "risk factor screenings" are determined as moderate-risk groups, and the exercise plan recommends that moderate-risk groups should exercise vigorously (heart rate over 150 Perform medical supervision when the number of beats per minute or greater than 70% of maximal force or RPE is greater than 14).

The questionnaire on common chronic diseases or discomforts in the human body includes common disease levels, common discomfort levels, and common abnormal index levels. Anxiety and depression belonging to the neuropsychiatric system, arthritis and cervical spondylosis caused by long-term sitting at a desk belonging to the skeletal system, common discomfort levels include abdominal distension, gastric distension and constipation caused by lack of exercise belonging to the digestive system, and skeletal system For low back pain, abnormal levels of common indicators include dyslipidemia and impaired glucose tolerance belonging to the metabolic system. The disease, discomfort, and index abnormality information selected by the user is obtained through the common chronic disease or discomfort questionnaire of the human body, and provided to the movement goal reasoning unit to participate in the movement goal reasoning.

The health sign test module is used to collect the test index data of the user's initial health sign and provide it to the exercise target reasoning unit;

The health sign test module includes a body composition tester, a cardiovascular function tester, a lung function tester, a body balance tester and a bone density tester; the body fat rate is obtained by the body composition tester, and the Blood pressure value, growth index and subendocardial myocardial viability rate, forced vital capacity obtained by lung function tester, ratio of forced expiratory volume in the first second to forced vital capacity, ratio of forced expiratory volume in the first second to predicted value, and body weight The center shaking speed is obtained by the balance tester, and the bone strength index and T value are obtained by the bone density tester;

Body fat percentage, blood pressure, growth index, subendocardial myocardial viability, forced vital capacity, ratio of forced expiratory volume in the first second to forced vital capacity, ratio of forced expiratory volume in the first second to predicted value, and central shaking velocity And the bone strength index and T value constitute the test index data of the user's initial health signs.

The human body composition tester judges according to the body fat rate index contained in the self-health test report, and obtains the user's obesity degree. The obesity degree is divided into normal body fat, overweight and obesity. The exercise target reasoning unit selects overweight or obesity as the metabolism In the disease level of the system;

The cardiovascular function tester judges the blood pressure value, growth index and subendocardial myocardial vitality rate contained in the self-health test report, and obtains the user's blood pressure level according to the blood pressure value. The blood pressure level is divided into hypotension, normal blood pressure, Normal high value, first-level hypertension, second-level hypertension and third-level hypertension, the exercise target inference unit selects hypotension, normal high value, first-level hypertension or second-level hypertension to be included in the disease level of the circulatory system, and the specific At the time of implementation, users with grade 3 hypertension have been screened out by the PAR-Q questionnaire.

The cardiovascular function tester obtains the user's vascular stiffness according to the growth index. The vascular stiffness is divided into normal blood vessels, signs of arteriosclerosis, and arteriosclerosis. The motion target reasoning unit selects signs of arteriosclerosis or arteriosclerosis to be included in the disease level of the circulatory system Middle; the cardiovascular function tester obtains the user's cardiac function capacity according to the subendocardial myocardial vitality rate, and the cardiac function capacity is divided into normal cardiac function, poor cardiac function, and very poor cardiac function; the motion target inference unit selects poor cardiac function or Poor cardiac function is included in the disease class of the circulatory system;

The lung function tester judges according to the forced vital capacity contained in the self-health test report, the ratio of the forced expiratory volume in the first second to the forced vital capacity, and the ratio of the forced expiratory volume in the first second to the predicted value. The ratio of the gas volume to the forced vital capacity and the ratio of the forced expiratory volume in the first second to the predicted value are used to obtain the judgment result of the user's COPD, and the judgment result of the user's ventilation dysfunction is obtained according to the ratio of the forced vital capacity and the forced expiratory volume in the first second to the forced vital capacity , the judgment results are divided into normal pulmonary ventilation function, low vital capacity, ventilatory defect, and COPD, and the motion target reasoning unit selects low vital capacity, ventilatory defect, or COPD to be included in the disease level of the respiratory system;

The body balance tester judges according to the center shaking speed contained in the self-health test report, and obtains the user's static balance ability. The static balance ability is divided into normal balance ability, excellent balance ability, and poor balance ability. The movement target reasoning unit selects the balance ability Poor inclusion in the neuromuscular system disease class;

The bone density tester judges according to the user's bone strength index and T value contained in the self-health test report, and obtains the user's osteoporosis degree, which is divided into normal osteoporosis, osteopenia and osteoporosis, and exercise goals The reasoning unit selects osteopenia or osteoporosis to be included in the disease level of the skeletal system.

The exercise ability test module includes an aerobic endurance tester and a muscle strength tester, which are used to collect the test index data of the user's initial exercise ability and provide it to the exercise goal reasoning unit; in specific implementation, the aerobic endurance tester is based on treadmill and heart rate monitoring The equipment includes two modes: the maximum intensity load test and the second maximum intensity load test; the muscle strength test is based on the whole body strength test mode of the rowing machine and the lower limb strength test mode of the lower limb strength training equipment to test the whole body strength and lower limb strength respectively. The exercise ability test module tests the user's exercise quality, and conducts special fitness training for users with limited exercise to improve the user's special exercise ability, thereby improving the comprehensive exercise ability.

The aerobic endurance tester judges according to the speed, slope, heart rate and Meter value contained in the self-exercise test report, and obtains the cardiopulmonary endurance rating. The cardiopulmonary endurance rating is divided into poor cardiopulmonary endurance, poor cardiopulmonary endurance, good cardiopulmonary endurance and cardiopulmonary endurance. Excellent, the exercise target reasoning unit selects poor cardiopulmonary endurance or poor cardiopulmonary endurance to include in the index abnormality level of the circulatory system;

The muscle strength tester judges according to the maximum strength contained in the self-exercise test report, and obtains the muscle strength rating. The muscle strength rating is divided into poor muscle strength, poor muscle strength, good muscle strength and excellent muscle strength. The exercise target reasoning unit selects muscles Poor strength or poor muscular strength is included in the abnormal class of indicators of the neuromuscular system. The test index data of initial exercise ability is composed of speed, slope, heart rate, MET value and maximum strength.

The exercise goal inference unit performs inference based on the user's basic information, user health information, test index data of initial health signs, and test index data of initial exercise ability, obtains the user's exercise goal and provides it to the exercise plan generation unit;

The exercise goal reasoning unit obtains the information on diseases, discomforts, and index abnormalities selected by the user according to the user's health information, obtains the diseases displayed in the health test report according to the test index data of the user's health signs, and obtains the information based on the test index data of the user's exercise ability. The index abnormal information displayed in the exercise test report consists of the diseases, symptoms, and index abnormal information selected by the user, the diseases displayed in the health test report, and the abnormal index information displayed in the exercise test report. The source information is prioritized, and the highest priority item in the sorted results is obtained as the moving target.

Prioritization is done in the following steps:

Step 1. Sorting the one-to-many source information according to the sorting rules to obtain the first sorting result;

The first sorting rule is: the disease level takes precedence over the discomfort level, and the discomfort level takes precedence over the index abnormality level;

Step 2. Sorting the first sorting result according to sorting rule 2 to obtain the second sorting result;

The second sorting rule is: at the same level, the circulatory system takes precedence over the metabolic system, the metabolic system takes precedence over the digestive system, the digestive system takes precedence over the neuropsychiatric system, the neuropsychiatric system takes precedence over the respiratory system, the respiratory system takes precedence over the neuromuscular system, and the nervous system takes precedence over the neuromuscular system. The muscular system takes precedence over the skeletal system.

During specific implementation, if there are two or more parallel sports goals after the second sorting result, the user will select the result that needs to be improved most urgently as the current sports goal according to the user's self-feeling.

The exercise plan generation unit determines the exercise items, exercise duration and exercise frequency according to the exercise goal, and determines the user's exercise intensity according to the exercise goal and the test index data of the initial exercise ability, and determines whether medical supervision is required during exercise according to the exercise risk assessment result, The exercise program consisting of exercise items, exercise duration, exercise frequency, exercise intensity and whether medical supervision is required is provided to the intelligent fitness equipment module for execution;

Among them, the sports items include warm-up items, main items and finishing items, and the item selection of the main items includes endurance training items, resistance training items, flexibility training items, and comprehensive training items, and the selected items are determined by the exercise goals;

The warm-up event refers to before any main event, with a lighter amount of activity, first move the limbs to prepare for the subsequent more intense physical activity, about 5-10 minutes of jogging or whole-body exercise; the finishing event refers to after any main event, Stretching exercise for about 5 minutes to make the human body transition from a tense state to a quiet state;

The main item in the exercise program is determined according to the user's exercise goal. For example, if the exercise goal is obesity or diabetes or impaired glucose tolerance or osteoporosis or osteopenia or high blood pressure or dyslipidemia, the main exercise item should be endurance training + For resistance training items, if the exercise target is chronic obstructive pulmonary disease or ventilation defect or low vital capacity or hypotension or depression or anxiety, the main exercise item should be endurance training item + flexibility training item; similar exercise items can choose different training equipment, system The default is circular selection, and the user can also modify the selection through the remote service platform. For example, the warm-up items include treadmill warm-up or warm-up items in somatosensory games (such as boxing, table tennis, Latin dance, hula hoop); the tidying items include tidying items in somatosensory games (such as relaxation yoga, Zen energy).

The endurance training items in the main program include treadmill endurance running, rowing machine endurance training mode, power bicycle, elliptical machine; the whole body strength training options in the resistance training program include waist and abdomen training equipment, chest expansion equipment, chest press equipment, high Pulling and rowing training equipment, lower body strength training options include lower body strength training equipment, leg machine equipment, thigh adduction and abduction equipment, and calf stretching equipment; upper body strength training options include dumbbells, barbells, and bench press equipment; flexibility training items include rowing The flexibility training mode of the machine or the flexibility training items in the somatosensory game; the comprehensive training items can be selected from the comprehensive training items in the somatosensory game, such as boxing, tennis, rope skipping, relaxation yoga, Zen energy, etc.; it can be used as warm-up activities, finishing activities, aerobic Choose from endurance training, coordination training, agility training or a combination of training. The use of somatosensory games for fitness increases the variety of sports, and improves the user's interest in participating and compliance in performing sports.

The exercise intensity in the exercise program includes the intensity of endurance exercise and the intensity of resistance exercise. The intensity of endurance exercise is obtained by multiplying the maximum test value of aerobic endurance by the percentage of the maximum test value of aerobic endurance; the intensity of resistance exercise is obtained by the maximum test value of muscle strength Multiplied by the percentage of the maximum test value of muscle strength; the maximum test value of aerobic endurance is obtained by the aerobic endurance tester; the maximum test value of muscle strength is obtained by the muscle strength tester; the percentage of the maximum test value of aerobic endurance and muscle strength The percentage of maximum test value is determined by the motion target.

If the user's exercise goal is diabetes, the user's METmax can be obtained through the aerobic endurance test, and the maximum strength can be obtained from the muscle strength test. Start at 60% of the maximum strength; determine the exercise duration and exercise frequency according to the user's exercise goal. For example, when the exercise goal is diabetes, the duration of endurance training is 20-45min, and the exercise frequency is 2-6 times a week. , The specific time arrangement between the upper and lower limits is selected by the user, the user can freely choose through the remote service platform, the fitness coach will review, and finally determine the exercise plan with the user.

The intelligent fitness equipment module includes an endurance training unit, a strength training unit and a somatosensory game fitness unit; the endurance training unit receives the exercise program including endurance training items; the strength training unit receives the exercise program including resistance training items, and the somatosensory game fitness unit receives the exercise program including The exercise program of flexible training items or comprehensive training items, during specific implementation, the body-sensing game fitness unit also receives the exercise program that includes the warm-up items in the body-sensing game or the finishing items in the body-sensing game; when the user completes the fitness exercise according to the exercise program, the intelligent The fitness equipment module collects the completion results of the user's execution of the exercise plan; the completion results include: the selection result of the exercise item, the execution time of the exercise duration, and the execution result of the exercise intensity;

After the exercise plan is generated, the user executes the exercise plan according to the guidance of the exercise plan. Among them, the user executes the exercise plan, there are two execution methods for the user to choose: first, after the user passes the identity authentication on the intelligent fitness equipment module, the intelligent fitness equipment module downloads the user's current exercise plan from the remote service platform , the intelligent training equipment is remotely controlled by the remote service platform, and the operating parameters of the equipment are automatically set according to the exercise plan (for example, according to the exercise plan, the exercise intensity of aerobic endurance is nMETs, then according to the conversion formula of METs, speed and slope, the running The speed, slope, and setting of the machine), the user clicks start when ready, the instrument starts to run, the user guides the user to complete the fitness according to the exercise program, and the fitness equipment automatically feeds back the completion result of the user's exercise program to the remote service platform; Second, or the user logs in to the remote service platform, and after checking the exercise program of the day, the user chooses an exercise without intelligent training equipment. After the implementation, the user records the completion results of the exercise item, exercise intensity, and exercise duration into the remote service platform. , or the fitness facility can issue a heart rate monitor to the user, and the heart rate of the user during exercise will be uploaded to the remote service platform via Bluetooth, and the intensity of the user's fitness exercise can be evaluated based on the heart rate.

During the specific implementation, in order to ensure that the user can gradually improve the exercise effect, according to the different sports items, the appropriate exercise intensity is given gradually progressively. The progressive principle is: on the premise that the user can adapt to the current exercise intensity, when the user uses the current exercise intensity After a week of high-intensity exercise, progress according to different sports items. Among them, the endurance training program on the treadmill first gradually increases the exercise duration with an increment of 5 minutes per week, and gradually increases the exercise intensity with an increment of 5% METmax per week after reaching the maximum exercise duration; the endurance in the somatosensory game The training program first gradually increased the exercise duration with an increment of 5 minutes per week, and gradually increased the exercise intensity with an increment of RPE1 level per week after reaching the maximum exercise time; the resistance training program first maintained the same intensity, and then increased the exercise intensity by 2 minutes per week. The increasing range of times gradually increases the number of times of exercise in each group, and when each group reaches the maximum number of times of exercise, the intensity is gradually increased in an increasing range of 5%RM per week.

For example, the exercise plan for the first week of diabetes is: treadmill warm-up + main project (cardiopulmonary combat project in the somatosensory game, exercise intensity: RPE12 level (a bit strenuous), exercise duration: 20min) + finishing project (somatosensory game Relaxation yoga; 5min), medical supervision during exercise, progressive principle (increase 5min every week from the second week to the sixth week, until 45min maintenance; principle of increasing intensity: increase RPE1 level every week from the seventh week to the tenth week, until 16 level (difficult) to maintain).

The fitness management unit determines the exercise program execution cycle according to the exercise goal, and after completing the exercise program execution cycle, uses the health sign test module and the exercise ability test module to obtain the updated user health sign test index data and exercise ability test index data respectively and By comparing and analyzing the initial test index data of the user's health signs and the test index data of the exercise ability, the absolute value result of the difference between the health signs and the exercise ability is obtained, so as to make overall adjustments to the exercise program.

The overall adjustment includes re-selection of sports items, re-determination of exercise intensity and exercise duration. During specific implementation, for example, if the exercise target is obesity, the execution period of the exercise program is 3 months, because the obese user can only achieve relatively stable results if he persists in losing weight for 3 months at the shortest time, so when the user executes it for 3 months, the user Carry out the health sign test and exercise ability test again, compare the updated test index data with the initial test data, and calculate the absolute value of the difference. If the absolute value of the difference is less than the target value, the user's exercise plan should be overall Adjustment. The overall adjustment includes re-selecting sports items, re-determining exercise intensity, exercise duration and exercise frequency. The target value is determined according to the motion target. For example, the user's initial health sign parameters include a body fat rate of 32%, the exercise goal is obesity, and the exercise plan is executed for 3 months, and the target value is determined to be 5%, if the updated body fat rate is obtained after 3 months 28%, then the absolute value of the calculated difference is ︳28%-32%︱=4%<5%, that is, the user’s exercise program should be adjusted as a whole; if the user’s exercise goal is hypotension, the target value should be determined to be 15mmHg , the initial systolic blood pressure is 70mmHg, after 3 months of execution cycle, the updated systolic blood pressure is 80mmHg, then the absolute value of the calculated difference is ︳80mmHg-70mmHg︱=10mmHg<15mmHg, that is, the user’s exercise program should be adjusted as a whole.

The fitness management unit calls the completed results of the intelligent fitness equipment module to calculate the total amount of exercise, so as to evaluate the effect of the exercise program, and the obtained evaluation results are used to adjust the exercise intensity or exercise duration of the exercise program. Calculate the total amount of exercise based on the execution result of the exercise intensity in the completion result and the execution time of the exercise duration. The total amount of exercise is represented by exercise energy consumption. For example, the execution result of a user's exercise intensity is xMETs, and the execution time of the exercise duration is y minutes, then exercise energy consumption (kcal) = (x-1) METs × 3.5 × body weight kg/200 × y minutes. Compare the actual exercise energy consumption with the exercise energy consumption in the exercise plan and calculate the difference. If the difference is less than zero, it means that the actual exercise intensity or exercise duration is insufficient, and the exercise intensity or exercise duration of the exercise plan should be adjusted. Adjust the time, appropriately increase the exercise intensity or appropriately reduce the intensity to increase the exercise duration.

The intelligent fitness guidance system has added a somatosensory game fitness unit, supplemented the lack of conventional fitness items, and added a variety of flexibility, coordination, sensitivity, and comprehensive sports items. Somatosensory games can be used as warm-up items, endurance training items, and flexibility training items. , comprehensive training items, and options for sorting out items, users have more choices. Through the control and guidance of somatosensory game fitness, the goal of fun fitness can be achieved.

As shown in Figure 2, a fitness guidance method based on a closed-loop structure is performed in the following steps:

Step 1: Collect user information before exercise

Step 1.1: The user logs in to the publishing website of the remote service platform through the network, fills in the basic information of the user, and performs user registration;

Step 1.2: The user logs in to the website according to the registration information, enters the questionnaire unit, and fills in the exercise risk assessment questionnaire, including the PAR-Q questionnaire, cardiovascular risk assessment questionnaire, exercise contraindication screening questionnaire, and common chronic diseases or discomfort questionnaires; To obtain the user's health information;

Step 1.3: The questionnaire unit screens users based on basic information and health information to obtain suitable exercise and fitness groups, conducts exercise risk assessment to obtain exercise risk assessment results, and displays them to users; among them, the questionnaire results do not meet the system management conditions or exercise risks For users whose income is greater than that of exercise, the reason why they cannot participate in the system will be prompted;

Step 2: Pre-exercise Health Signs Test

It is suitable for sports and fitness users to log in to the health sign testing instrument, perform the health sign test, and obtain the user's initial health sign parameters; in this embodiment, the initial health sign parameters include: body fat percentage, blood pressure value at rest, growth index and subendocardial Myocardial vitality rate, one-second rate, center shaking speed and T value; Among them, the group with high risk of fracture during exercise obtained according to T value; for the group with low bone strength and high risk of fracture during exercise, guide them Safe exercise, so as to reduce the incidence of fractures during exercise; these indicators are representative indicators of each tester, and the improvement of some unwell health conditions can be reflected indirectly through the changes of these indicators, such as type 2 diabetes or impaired glucose tolerance Can be improved by weight loss;

Step 3: Pre-exercise exercise performance test

Log in the exercise ability testing instrument for suitable exercise and fitness users to obtain the user's initial exercise ability parameters; in the present embodiment, the initial exercise ability parameters include: maximum heart rate, maximum Meter value and maximum strength; Obtained by the oxygen endurance tester, the aerobic endurance tester is based on the treadmill and heart rate monitoring equipment, the maximum strength is completed based on the muscle strength tester, the muscle strength tester is based on the whole body strength test equipment, the lower body strength test equipment and the upper body strength test equipment .

Step 4: Determine the user's exercise goal

Based on the user's questionnaire, the user's initial health sign parameters and the user's initial exercise ability parameters, the user's current health status to be improved is determined through the exercise goal reasoning unit, thereby determining the user's current exercise goal and displayed to the user through the website. The health status includes the unhealthy health status checked by the user, the initial health sign parameters and/or the initial exercise capacity parameters obtained from the common chronic diseases or discomfort questionnaires to be improved. parameter;

Step 5: Determination of target health sign parameters and target exercise capacity parameters

Determine the target health sign parameters according to the user's exercise goals and the user's initial health sign parameters, and determine the target exercise ability parameters according to the user's exercise goals and the user's initial exercise ability parameters; in specific implementation, first determine the health sign parameters and/or exercise ability according to the user goals The value that the parameter should improve, and then determine the target health sign parameter according to the initial health sign parameter and the value that the health sign parameter should improve, and determine the target exercise capacity parameter according to the initial exercise capacity parameter and the value that the exercise capacity parameter should improve, such as the initial health sign The body fat rate in the parameters is 32%, and the exercise goal is to reduce fat, so it is determined to reduce 5% during the exercise cycle, that is, the target body fat rate is 27%.

Step 6: Motion plan generation

Step 6.1: Generate an initial exercise plan from the exercise target, the user's initial exercise ability parameters and exercise risk assessment results. The initial exercise plan includes exercise items, exercise intensity, exercise duration, exercise frequency and exercise cycle; in specific implementation, it is determined according to the exercise goal Exercise items, exercise cycle, determine the user's exercise intensity according to the test index data of the exercise goal and initial exercise ability, and set the upper and lower limits in advance for the exercise duration and exercise frequency. The exercise cycle is the shortest performance selected based on the exercise goal and referring to the literature The period of exercising effects, such as fat loss or blood pressure reduction, can be selected as an exercise period of 3 months at the shortest time. During specific implementation, users will be prompted whether they need medical supervision when exercising according to the results of exercise risk assessment; exercise programs include about 10 minutes before formal exercise The preparatory activities, formal practice and finishing activities of about 5 minutes after the formal practice.

Step 6.2: The fitness trainer checks whether the initial exercise plan is passed. If it is step 7, if not, return to step 6.1; consider the user's hobbies and living habits, and provide an interface for the user and the fitness trainer to adjust this plan. The user can adjust the initial exercise plan. The exercise schedule, exercise duration, and exercise frequency in the exercise program are properly adjusted. The user needs to apply for the review of the fitness coach for the adjustment of the program. Finally, the user and the fitness coach jointly determine the pre-executed exercise program to prevent the user from adjusting the program at will. And affect the final fitness effect; considering the inconsistency between the user's actual exercise acceptance and the exercise intensity given by the exercise plan, the fitness coach can fine-tune the fitness exercise intensity in the user's exercise plan. The user should communicate with the fitness trainer, and restart the initial exercise program after appropriate modification;

Step 7: Initial Exercise Protocol Execution and Feedback

The user executes the initial exercise program. After the user passes the identity authentication on the intelligent fitness equipment module, the intelligent fitness equipment module downloads the user's current exercise program from the remote service platform. When the user is ready, click "Start" to start the intelligent fitness equipment module. The equipment will run according to the operating parameters set in the exercise plan, and guide the user to complete the fitness according to the exercise plan;

After the user completes the initial exercise plan, the intelligent fitness equipment will feed back the exercise feedback information after the user completes the initial exercise plan to the remote service platform; during specific implementation, the exercise feedback information includes the actual exercise intensity, exercise duration, and exercise frequency and the degree of fatigue after exercise, the degree of fatigue after exercise can be collected through the subjective feeling fatigue scale (RPE scale);

Step 8: Initial Adjustment and Execution of Initial Exercise Program

The system first adjusts the exercise intensity and exercise duration of the initial exercise plan according to the exercise feedback information, obtains the initially adjusted exercise plan and provides it to the user to execute according to the exercise cycle; in specific implementation, the user's actual exercise acceptance is taken into account Inconsistency with the exercise intensity given by the exercise plan, the exercise intensity and exercise duration in the user's exercise plan must be adjusted for the first time, so as to improve the user's compliance; for example, for users who feel fatigued, the exercise intensity can be reduced by about 5% , while increasing the exercise duration by about 10 minutes, for users who are consciously relaxed, the exercise intensity can be increased by about 5%, while reducing the exercise duration by about 10 minutes.

Step 9: Post-exercise health sign test and exercise capacity test

After the user executes the exercise program in the exercise cycle, the system reminds the user to perform the health sign test and the exercise ability test again, and obtains the updated health sign parameters and the updated exercise ability parameters respectively, and transmits them to the remote service platform through the network;

Step 10: Judgment and evaluation of fitness effects after exercise

The fitness management unit compares the updated health sign parameters with the target health sign parameters and/or the updated exercise ability parameters with the target exercise ability parameters, and judges and evaluates the fitness effect of the user; if the updated health sign parameters are smaller than the target health sign parameters And/or the updated exercise ability parameter is less than the target exercise ability parameter, then the fitness effect has not been achieved, and step 11 is performed; otherwise, the fitness effect is achieved, and this fitness guidance is ended; in specific implementation, when the fitness effect is achieved, this exercise is ended Guidance, you can re-determine the goal of exercise, and carry out fitness exercises again, so as to achieve new fitness effects.

Step 11: Re-adjustment and execution of the exercise plan after the initial adjustment

When the fitness effect is not achieved, combined with the user's feedback information (opinions on the exercise plan, any difficulties in implementing it, whether the discomfort has improved, etc.), according to the updated health sign parameters and target health sign parameters, the exercise plan after the initial adjustment The exercise items, exercise intensity and exercise duration are adjusted again, and the readjusted exercise plan is obtained and provided to step 7 as the initial exercise plan to continue to execute, thus forming a closed-loop structure.

Claims (4)

1. a kind of intellectuality exercise guide system, is characterized in that composition includes：By questionnaire unit, moving target reasoning element, fortune Dynamic schemes generation unit, the remote service platform of body-building administrative unit composition, healthy sign test module, locomitivity test mould Block, intelligent health and fitness facilities module；

Described questionnaire unit is used for collecting user basic information and user health information and being supplied to described moving target reasoning list Unit, simultaneously according to described user basic information and user health information, carries out user's screening and obtains suitable sport and body-building crowd, and Carry out exercise risk assessment and obtain exercise risk assessment result, described exercise risk assessment result includes：Exercise risk is high-risk, fortune Danger and the low danger of exercise risk in dynamic risk；

Described health sign test module is used for gathering the test index data of user's initial health sign and being supplied to described fortune Moving-target reasoning element；

Described locomitivity test module includes aerobic endurance test instrument and muscle strength tester, initially transports for gathering user The test index data of kinetic force is simultaneously supplied to described moving target reasoning element；

Described moving target reasoning element is according to described user health information, the test index data of initial health sign and initial The test index data of locomitivity makes inferences, and obtains user movement target and is supplied to described motion scheme signal generating unit；

Described motion scheme signal generating unit determines sports events, exercise duration and motion frequency according to described moving target, And determine the exercise intensity of user according to the test index data of described moving target and initial motion ability, and according to described fortune Dynamic risk evaluation result determines the need of medical control during motion, by described sports events, exercise duration, motion frequency Rate, exercise intensity and the need of medical control constitute motion scheme be supplied to described intellectuality health and fitness facilities module be used for holding OK；Described sports events includes warm-up project, master project and Consolidation Project, and the items selection of described master project includes endurance training Project, work against resistance project, soft training project, combined training project, and selected project is determined by described moving target；

Described intellectuality health and fitness facilities module includes endurance training unit, strength building unit and somatic sensation television game body-building unit；Institute State the motion scheme that the reception of endurance training unit comprises endurance training project；Described strength building unit receives and comprises work against resistance The motion scheme of project, described somatic sensation television game body-building unit receives and comprises soft training project or the motion side of combined training project Case；Described intellectuality health and fitness facilities module gather user execute described motion scheme complete result；The described result that completes includes： The selection result of described sports events, the execution time of described exercise duration, the implementing result of described exercise intensity；

Described body-building administrative unit determines the motion scheme execution cycle according to described moving target, and completes described motion scheme The user health of renewal after the execution cycle, is obtained respectively using described health sign test module and locomitivity test module The test index data of the test index data of the sign and locomitivity test with described initial user health sign refers to The test index data of mark data and locomitivity is compared analysis, the difference of the sign that secures good health respectively and locomitivity Absolute value, thus carry out integrated regulation to described motion scheme；

The result that completes that described body-building administrative unit transfers described intellectuality health and fitness facilities module is used for calculating motion total amount, thus Described motion scheme is carried out with recruitment evaluation, the assessment result of acquisition is used for the exercise intensity to described motion scheme or motion is held The continuous time is adjusted.

2. intellectuality exercise guide system as claimed in claim 1, is characterized in that, described health sign test module includes： Human body parameters testing equipment, cardiovascular function tester, lung functional instrument, body balance performance monitor and bone density tester；By Described human body parameters testing equipment obtains body fat rate, obtains pressure value, growth indices and the heart by described cardiovascular function tester Myocardial viability rate under inner membrance, obtained forced vital capacity, Forced expiratory volume in one second and firmly lung by described lung functional instrument The ratio of amount of living and Forced expiratory volume in one second obtain center with predicted value ratio, by described body balance performance monitor and shake speed Degree, and bone strength index and T value are obtained by described bone density tester；

By described body fat rate, pressure value, growth indices and subendocardiac muscle vigor rate, forced vital capacity, firmly exhale within first second Air space shakes speed and bone with the ratio of forced vital capacity and Forced expiratory volume in one second with predicted value ratio, center Intensity index and the test index data of T value composition user's initial health sign.

3. intellectuality exercise guide system as claimed in claim 1, is characterized in that, described locomitivity test module includes Oxygen endurance test instrument and muscle strength tester, obtain speed, the gradient, heart rate and met value by described aerobic endurance tester； Peak power is obtained by described muscle strength tester；It is made up of described speed, the gradient, heart rate and met value and peak power The test index data of described initial motion ability.

4. the closed loop guidance method of the intelligent exercise guide system described in a kind of utilization claim 1, its feature presses following walking Suddenly carry out：

User information collection before step 1, motion；

Step 1.1, the health letter obtaining the essential information of user by registration and obtaining user by exercise risk evaluation questionnaire Breath；

Step 1.2, according to described essential information and health and fitness information, carry out user screening obtain suitable sport and body-building crowd, go forward side by side The assessment of row exercise risk obtains exercise risk assessment result；

Healthy sign test before step 2, motion；

Described suitable sport and body-building crowd is carried out with healthy sign test and obtains user's initial health physical sign parameters；

Locomitivity test before step 3, motion；

Described suitable sport and body-building crowd is carried out with locomitivity test and obtains user's initial motion ability parameter；

Step 4, user movement target determine；

By described exercise risk evaluation questionnaire, user's initial health physical sign parameters and user's initial motion ability parameter, obtain and use Family health status to be improved, so that it is determined that user movement target；

Step 5, target health physical sign parameters and target locomitivity parameter determination；

Target health physical sign parameters are determined according to user movement target and user's initial health physical sign parameters, and according to user movement Target and user's initial motion ability parameter determine target locomitivity parameter；

Step 6, motion scheme generate；

Initial motion scheme, institute are generated by described moving target, user's initial motion ability parameter and exercise risk assessment result State initial motion scheme and include sports events, exercise intensity, exercise duration, motion frequency and the period of motion；

Step 7, the execution of initial motion scheme and feedback；

According to initial motion scheme, the body building of user is instructed, and collect the fortune after user completes initial motion scheme Dynamic feedback information；

Step 8, initial motion scheme are first to be adjusted and executes；

According to described motion feedback information, the exercise intensity of initial motion scheme and exercise duration are adjusted for the first time, obtained Adjust for the first time after motion scheme and be supplied to user and execute according to the described period of motion；

Healthy sign test and locomitivity test after step 9, motion；

The user having executed the described period of motion is carried out again with healthy sign test and locomitivity test, obtains respectively and update Healthy physical sign parameters and update locomitivity parameter；

After step 10, motion, body-building effect judges and assesses；

To the healthy physical sign parameters of described renewal and the locomitivity parameter of described target health physical sign parameters and/or renewal and mesh Mark locomitivity parameter is compared, if the healthy physical sign parameters of described renewal be less than the healthy physical sign parameters of described target and/or The locomitivity parameter of described renewal is less than described target locomitivity parameter, then not up to body-building effect, and execution step 11； Otherwise, reach body-building effect, terminate exercise guide；

The adjustment again of motion scheme after step 11, first adjustment and execution；

Healthy physical sign parameters according to described renewal and described target health physical sign parameters are to the motion side after described first adjustment The sports events of case, exercise intensity and exercise duration are adjusted again, and obtaining the motion scheme after adjusting again provides Continue executing with as initial motion scheme to step 7, thus forming closed loop configuration.