WO2006011408A1 - 運動補助装置 - Google Patents
運動補助装置 Download PDFInfo
- Publication number
- WO2006011408A1 WO2006011408A1 PCT/JP2005/013369 JP2005013369W WO2006011408A1 WO 2006011408 A1 WO2006011408 A1 WO 2006011408A1 JP 2005013369 W JP2005013369 W JP 2005013369W WO 2006011408 A1 WO2006011408 A1 WO 2006011408A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- user
- unit
- exercise
- footrest
- assisting device
- Prior art date
Links
- 210000000629 knee joint Anatomy 0.000 claims abstract description 61
- 210000003205 muscle Anatomy 0.000 claims abstract description 45
- 230000008859 change Effects 0.000 claims abstract description 22
- 210000002683 foot Anatomy 0.000 claims abstract description 20
- 210000000689 upper leg Anatomy 0.000 claims abstract description 19
- 210000000527 greater trochanter Anatomy 0.000 claims abstract description 10
- 210000003371 toe Anatomy 0.000 claims abstract description 10
- 230000037149 energy metabolism Effects 0.000 claims description 19
- 238000002847 impedance measurement Methods 0.000 claims description 10
- 210000001217 buttock Anatomy 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 6
- 238000011156 evaluation Methods 0.000 claims description 6
- 125000002066 L-histidyl group Chemical group [H]N1C([H])=NC(C([H])([H])[C@](C(=O)[*])([H])N([H])[H])=C1[H] 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims description 2
- 230000000284 resting effect Effects 0.000 abstract 1
- 230000007246 mechanism Effects 0.000 description 23
- 230000033001 locomotion Effects 0.000 description 16
- 210000003127 knee Anatomy 0.000 description 15
- 210000002414 leg Anatomy 0.000 description 12
- 238000010008 shearing Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 8
- 230000004118 muscle contraction Effects 0.000 description 8
- 210000000577 adipose tissue Anatomy 0.000 description 7
- 210000000544 articulatio talocruralis Anatomy 0.000 description 7
- 208000006820 Arthralgia Diseases 0.000 description 6
- 238000005452 bending Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 201000010099 disease Diseases 0.000 description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 5
- 208000024765 knee pain Diseases 0.000 description 5
- 230000036772 blood pressure Effects 0.000 description 4
- 208000002193 Pain Diseases 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 206010012601 diabetes mellitus Diseases 0.000 description 3
- 210000003414 extremity Anatomy 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 208000024891 symptom Diseases 0.000 description 3
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 2
- 208000003947 Knee Osteoarthritis Diseases 0.000 description 2
- 230000037396 body weight Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000001351 cycling effect Effects 0.000 description 2
- 239000008103 glucose Substances 0.000 description 2
- 230000004153 glucose metabolism Effects 0.000 description 2
- 210000001699 lower leg Anatomy 0.000 description 2
- 230000000638 stimulation Effects 0.000 description 2
- 206010020772 Hypertension Diseases 0.000 description 1
- 208000001953 Hypotension Diseases 0.000 description 1
- 206010022489 Insulin Resistance Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 210000003423 ankle Anatomy 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 230000002612 cardiopulmonary effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 210000003108 foot joint Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 208000012866 low blood pressure Diseases 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000007659 motor function Effects 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 201000008482 osteoarthritis Diseases 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 210000003314 quadriceps muscle Anatomy 0.000 description 1
- 208000001072 type 2 diabetes mellitus Diseases 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B23/00—Exercising apparatus specially adapted for particular parts of the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
- A61H1/02—Stretching or bending or torsioning apparatus for exercising
- A61H1/0237—Stretching or bending or torsioning apparatus for exercising for the lower limbs
- A61H1/0244—Hip
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
- A61H1/02—Stretching or bending or torsioning apparatus for exercising
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B23/00—Exercising apparatus specially adapted for particular parts of the body
- A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
- A63B23/04—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B23/00—Exercising apparatus specially adapted for particular parts of the body
- A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
- A63B23/04—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs
- A63B23/0405—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs involving a bending of the knee and hip joints simultaneously
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B23/00—Exercising apparatus specially adapted for particular parts of the body
- A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
- A63B23/04—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs
- A63B23/08—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs for ankle joints
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2203/00—Additional characteristics concerning the patient
- A61H2203/04—Position of the patient
- A61H2203/0425—Sitting on the buttocks
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2208/00—Characteristics or parameters related to the user or player
- A63B2208/02—Characteristics or parameters related to the user or player posture
- A63B2208/0228—Sitting on the buttocks
Definitions
- the present invention relates to an exercise assisting device for providing a user with less burden on a knee joint in a sitting posture state.
- an exercise assistance device that provides a user with passive movement stimulation
- a device that provides a simulated riding exercise to a seat on which the user is seated for example, Japanese Patent Laid-Open No. 11 155836
- devices and the like that cause a user to perform cycling exercises by electrically rotating a pedal on which a person puts his / her foot.
- These devices are said to be effective in improving lifestyle-related diseases because they provide aerobic exercise to users to reduce body fat and cause muscle contraction to promote glucose metabolism.
- the present invention has been made in view of the above problems, and its main purpose is to An object of the present invention is to provide an exercise assisting device for efficiently providing a user with passive motion stimulation accompanied by muscle contraction of the thigh while reducing the burden on the knee.
- the exercise assisting device of the present invention comprises:
- a support member that is movable relative to the base and supports a user's buttocks
- a footrest that is movable relative to the base
- Drive means for driving at least one of the support member and the footrest
- the load applied to the thigh by the user's own weight on the support member changes in accordance with the relative position change between the user's toes and the greater trochanter, and the position change causes the knee joint to bend and stretch.
- a control unit that controls the driving means so that the angle of the knee joint is allowed to be maintained at a substantially constant angle.
- the driving means drives only the support member or the support member in conjunction with the footrest.
- an exercise assisting device excellent in cost performance can be achieved.
- the exercise assisting device includes a constitution estimation unit that estimates at least one of a fat mass and a muscle mass of the user, and the control unit controls the driving unit using the output of the constitution estimation unit. Yes.
- the control unit controls the driving unit using the output of the constitution estimation unit.
- the exercise assisting device includes a grip that a user can hold, a pair of first electrodes disposed on a footrest, and a pair of first electrodes provided on the grip.
- a high-frequency current is passed between one of the first electrode and one of the second electrodes while the user puts his / her foot on the footrest and grips the grip, and the other electrode of the first electrode
- An impedance measurement unit that detects a bioelectrical impedance of the user by detecting a potential difference with the other of the second electrodes, and the constitution estimation unit uses the output of the impedance measurement unit to determine the fat mass of the user And estimate at least one of muscle mass.
- the exercise assistance device has a weight input unit for inputting the weight of the user, and the constitution estimation unit is a weight input unit. It is preferable to estimate at least one of the fat mass and the muscle mass of the user by using the weight of the user inputted by the above and the output of the impedance measuring unit.
- the exercise assisting device includes a body information input unit that inputs the weight and height of the user, and the weight, height of the user input by the body information input unit, And an energy metabolism calculation unit that calculates one of the energy metabolism per unit time during exercise of the user and the target energy metabolism per unit time of the user using the output of the configuration estimation unit
- the control unit controls the driving means using the output of the energy metabolism calculation unit.
- a load sensor that detects a load applied to the footrest and a weight estimation unit that estimates the weight of the user using the output of the load sensor are provided in the exercise assisting device. It is preferable to estimate at least one of fat mass and muscle mass using the output of the dance measurement unit and the output of the weight estimation unit.
- the length of the support member can be adjusted in the height direction, and the exercise assisting device uses the distance sensor that detects the length of the support member in the height direction and the height of the user using the output of the distance sensor.
- the constitution estimation unit estimates at least one of fat mass and muscle mass using the output of the impedance measuring means and the output of the height estimation unit. In these cases, in addition to the output of the impedance measurement unit, weight and height, which are physical information unique to the user, are taken into account, so the accuracy of fat mass and muscle mass estimation by the constitution estimation unit can be further increased. .
- a recording unit that records a change in at least one of the fat mass and muscle mass of the user, and an evaluation unit that evaluates an exercise effect based on the change recorded in the recording unit. It is preferable that the controller controls the driving means using the output of the evaluation unit.
- an exercise is performed with a storage unit that stores a plurality of exercise programs for each user's biological profile and an input unit that inputs the user's biological profile.
- the control unit extracts one of the exercise programs corresponding to the user's biological profile input by the input unit from the storage unit, and controls the driving means based on the extracted exercise program.
- the exercise assisting device further acts on the knee joint of the user by using a load sensor for detecting a load applied to the footrest and an output of the load sensor.
- a control unit that estimates the force to be applied and the control unit drives the driving means (for example, a driving speed such as a change speed of the inclination angle of the support member) so that the force estimated by the calculation unit is within a preset range. It is preferable to control the speed at which the means is operated in real time. In this case, the force acting on the knee joint is estimated based on the load acting on the footrest and the drive means is controlled using this, so that excessive force does not act on the user's knee.
- the exercise given to the user can be monitored in real time.
- the force acting on the knee joint is displayed to the user via the display means, the user can be given a sense of security and can receive appropriate exercise assistance while the user is relaxed.
- FIG. 1 is a schematic perspective view of an exercise assisting device that is helpful in the first embodiment of the present invention.
- FIG. 2 is a block diagram of the exercise assisting device.
- FIG. 3 (A) to (E) are operation explanatory views of the exercise assisting device.
- FIG. 4 is a diagram showing a link model for determining the shear force acting on the user's knee.
- FIG. 5 is a flowchart showing the operation control of the exercise assisting device.
- FIG. 6 (A) and (B) are schematic views showing the posture of the user seated on the exercise assisting device.
- FIG. 7 is a schematic view showing an auxiliary support of the exercise assistance device.
- FIG. 8 is a schematic perspective view showing an example of a display unit of the exercise assistance device.
- FIG. 9 is a schematic perspective view of an exercise assisting device that works on the second embodiment of the present invention.
- FIG. 10 is a block diagram of the exercise assisting device.
- FIG. 11 (A) and (B) are diagrams showing electrode arrangements in a footrest and a grip.
- FIG. 12 is a schematic perspective view of an exercise assisting device according to a third embodiment of the present invention.
- FIG. 13 is a block diagram of the exercise assisting device.
- FIG. 14 is a schematic perspective view of an exercise assisting device according to a fourth embodiment of the present invention.
- FIG. 15 is a block diagram of the exercise assisting device.
- the exercise assisting device of the present embodiment includes a base 1 installed on the floor, a support member 2 that supports the buttocks of the user M, and a pair on which the user's feet are placed.
- This is mainly composed of the footrest 3, the support member 2, the drive mechanism 4 for driving the footrest 3, and the control unit 10 of the drive mechanism 4.
- reference numeral 50 denotes a display unit that displays the user's biological information and exercise state.
- the support member 2 includes a post 21 and a saddle 22 that is provided at the upper end of the post 21 and on which a user M's buttocks rests.
- the post 21 is tiltably held on the base 1 by the drive mechanism 4 at its lower end. That is, the output of the motor 41 serving as the drive means is transmitted to the support member 2 via the drive mechanism 4, and the post 21 reciprocally swings between the vertical posture and the inclined posture.
- the support member 2 is tilted in a plane including the user's thigh and saddle. That is, when the support member 2 is tilted with respect to the base 1, the lateral force does not act on the knee joint, and the knee joint tilts so that the force acts substantially only in the stretching direction. is there.
- the length of the post 21 can be adjusted so that the knee angle of the user becomes a predetermined angle when the user is seated on the saddle 22 and the foot is placed on the footrest 3.
- a mechanism for expanding and contracting the post 21 may be introduced into the drive mechanism 4.
- the footrest 3 is held via a drive mechanism 4 so as to be movable in the vertical direction with respect to the base 1. That is, the base of the footrest 3 is changed according to the inclination angle of the support member 2 with respect to the base 1 so that the angle of the knee joint of the user does not change even if the support member 2 tilts with respect to the base 1. The height position relative to 1 is adjusted. Further, the footrest 3 is held via the drive mechanism 4 so as to be tiltable with respect to the base 1. In Fig. 1, the footrest can be tilted in the left-right direction, but the "tilt of footrest 3" here refers to the tilt relative to the base in the front-rear direction that connects the toes and heels. Is also included.
- the shear force acting on the knee joint can be changed by changing the inclination angle of the sole in the front-rear direction of the footrest.
- the footrest can be rotated around an axis orthogonal to the upper surface of the footrest 3!
- the position where the foot is placed on the footrest 3 is appropriately indicated by a mark or the like, and each of the footrests 3 is provided with a load sensor 30 for detecting the load received by the user's foot force.
- the two motors 42 and 43 that independently adjust the tilt angle of the left and right footrest 3 are provided.
- the motor 41 that tilts the support member 2 is also used as a motor that moves the footrest 3 in the vertical direction.
- the footrest 3 may be configured as a bellows device that moves the footrest up and down by air pressure, which is not necessarily driven by a motor. Or it is good also as a structure hold
- the control unit 10 is mainly composed of a microcomputer, and the load applied to the thigh due to the weight of the user M on the support member 2 is changed according to the relative position change between the user's toe and the greater trochanter.
- a motor 41 as a drive source of the support member 2 so that the position change is substantially limited in the bending / extending direction of the knee joint of the user and the angle of the knee joint is kept substantially constant, Controls the motors 42 and 43 as the driving source of the footrest 3.
- the movable range of the support member 2 is limited so that the knee joint flexion / extension range is in the range where the extension position force is up to 45 degrees.
- the exercise assisting device of the present embodiment has a storage unit 11 in which time series data relating to the rotation speed of each motor is set and stored in order to obtain an appropriate exercise load, and the height, weight, and year of the user.
- An input unit 12 for inputting personal information such as age and sex, and a calculation unit 13 for estimating the force acting on the user's knee joint based on the output of the load sensor 30 provided on the footrest 3 are further provided. Then, the control unit 10 controls the motors (41 to 43) in real time so that the force estimated by the calculation unit 13 is within a preset range. Information in which the input unit 12 is also input is stored in the storage unit 11.
- the exercise assisting device described above is used in a state where the user's feet are placed on the footrest 3 with the legs slightly opened and seated on the saddle 22.
- the positional relationship between the footrest 3 and the saddle 22 can be determined by adjusting at least one of the height position of the footrest 3 and the extension / contraction length of the post 21 according to the length of the user's foot.
- the support member 2 is tilted in the position where the post 21 is in a vertical posture with respect to the base 1 and in the front right direction or the front left direction so that the moving direction of the user's center of gravity is parallel to the bending and stretching direction of the knee joint. It swings between the positions.
- the flexion angle ⁇ of the user's knee joint is kept substantially unchanged. That is, since the footrest 3 is movably held in the up and down direction with respect to the base 1 by the drive mechanism 4, when the post 21 is in a substantially vertical posture, it is shown in FIG. 3 (B) or FIG. When the footrest 3 is in the position and the post 21 is in an inclined position, the foot joint 3 is moved downward as shown in Fig. 3 (C) and Fig. 3 (E), so that the knee joint flexion angle ⁇ Can be kept almost constant. At this time, for example, as shown in FIG. 3 (C), the footrest 3 may be held by a spring having an appropriate panel coefficient without being driven by a driving source, or as shown in FIG. 3 (E).
- the position of the footrest 3 may be changed dynamically depending on the drive source.
- the support member 2 is tilted from the substantially vertical position toward the left or right footrest 3, only the footrest 3 on the side on which the support member 2 is swung (tilted) is lowered. Move towards. In this way, a load can be efficiently applied to the thigh of one leg without changing the bending angle ⁇ of the knee joint.
- the swinging direction of the support member 2 (that is, the relative position change direction between the position of the foot placed on the footrest 3 and the greater trochanter of the user) is
- the knee joint flexion / extension range (angle range) is also limited, so users with painful joints, such as osteoarthritis of the knee, which is not accompanied by torsion of the knee joint. Even if there is, there is no adverse effect such as increased pain or worsening of symptoms. Also, Since the footrest 3 is moved downward along with the inclination of the support member 2, it is possible to prevent the knee joint flexion angle from changing.
- the leg muscles can be contracted in a state close to isometric expansion and contraction, and muscle metabolism can be promoted and insulin resistance can be improved without increasing the burden on the knee. Furthermore, since the support member 2 and the footrest 3 are driven by a motor, the user only needs to follow other dynamic movements that do not require active body movement.
- the exercise assisting device of the present embodiment estimates the shear force acting on the knee of the user during exercise in real time, and controls the operation of the support member 2 and the footrest 3 based on the estimated shear force! It is characterized by.
- a method for estimating the shear force acting on the knee using a rigid link model will be described.
- the method for estimating the shear force is not limited to this method, and other methods such as finite element analysis may be used.
- “L” is a rigid link corresponding to the foot.
- “L” is a rigid body corresponding to the lower leg
- L is a rigid body link corresponding to the thigh.
- P is the equivalent of ankle joint
- P is a fulcrum corresponding to the knee joint. Also, “r”, “r” and “r”
- the direction perpendicular to the upper surface of the base 1 is defined as the Y-axis direction, and the horizontal direction is defined as the X-axis direction. Therefore, the flexion and extension motion of the user's knee joint is defined by the XY plane.
- the coordinate positions of the toe, ankle, knee, and greater trochanter are (X
- F x and F y are expressed by the following equations (2) and (3), respectively.
- F x F x + m (d 2 x / dt 2 ) (2)
- F x and F y are expressed by the following equations (4) and (5), respectively.
- F x and F y are the ⁇ component of the load detected by the load sensor
- the shear force in the direction (frontal plane direction) orthogonal to the front-rear direction of the knee joint and the shear force in other joints can be calculated. These calculations are performed by the calculation unit 13.
- the shearing force acting on the knee joint determined by the calculation unit 13 is used for controlling the drive mechanism 4 as described later. Further, the shearing force acting on the knee joint may be displayed on the display 50.
- the estimation accuracy can be further improved by adopting more detailed settings based on the actual anatomical data of the human body described above based on the three rigid link models. .
- the position of the greater trochanter in the ankle joint can be determined as follows. That is, in FIG. 3C, “ ⁇ ” is the inclination angle of the support member 2, “d” is the rotation radius of the support member 2, and “r” is a large rotation from the rotation center of the support member 2. The distance to the child. From this, the position of the greater trochanter (X, y) is expressed by the following equation.
- the position of the ankle joint is obtained by determining the position displacement of the footrest. If the position of the ankle joint and the position of the greater trochanter are calculated, the angle of the knee joint is preliminarily determined based on the stored knee joint angle measurement data. Further, as the support member is tilted, the position of the knee joint is determined because the position of the footrest is lowered to keep the knee joint angle substantially constant.
- the control unit 10 When the weight and height of the user are input to the input unit 12 for inputting the user's biological information, the control unit 10 operates the motor with a preset reference value. Next, the load (W) detected by the load sensor 30 is read, and the shearing force (Fl, F2) acting on the knee joint is calculated by the method described above. Preferably, if the load acting on the user's buttocks force support member 2 is detected and used for estimating the shear force, the accuracy is further improved.
- the load (W) detected by the load sensor 30 and the estimated shear force (Fl, F2) acting on the knee joint are compared with preset threshold values (Tl, ⁇ 2), respectively (Sl) . If either the shear force or the load exceeds the threshold, the motor operation speed is reduced, the positions of the support member and the footrest are returned to the initial positions (S2), and the motor operation is stopped (S3). This can prevent an excessive burden on the knee joint.
- the longitudinal shear force (F1) and the lateral shear force (F2) are compared with the warning values (Al, A2), respectively (S4, S5).
- the larger threshold value T2 means a limit value
- the smaller threshold values Al and A2 mean warning values.
- the warning value A1 for the longitudinal shear force and the warning value A2 for the horizontal shear force are different. Even if the shear force exceeds the warning value, it is not necessary to immediately stop the operation of the support means and the footrest. This value may cause the user to feel pain in the knee joint. If this value is exceeded, the drive unit is controlled so that the shearing force decreases.
- the magnitude of the load acting on the knee can be reduced by changing the inclination of the footrest and the length of the support member, or changing the speed at which the support member is inclined. Note that when the device is operated so that the lateral force does not act on the knee joint, step S5 for comparing the lateral shear force (F2) with the warning value can be omitted.
- the drive device is controlled to reduce the shearing force (S10).
- the shearing force reaches a warning value
- the motor is controlled to increase the inclination angle of the footrest 3 with respect to the base 1 so that the position of the heel is higher than the toes.
- the tensile force caused by the hamstrings acting on the knee joint can be made larger than the tensile force caused by the quadriceps muscle, and the shearing force acting in the front-rear direction of the knee joint can be reduced.
- the load detected by the load sensor 30 is compared with a specified threshold value (T3) (Sll).
- T3 is set to determine whether or not a load that is considered to be effective in improving diabetes is acting on the muscle. If it is equal to or less than the threshold value (T3), it is considered that the load given to the user is insufficient, and the drive mechanism 4 is controlled so that the load increases (S12).
- T3 the threshold value
- the load detected by the load sensor is equal to or greater than the threshold value (T3), an appropriate motion load is applied to the user, and the current motor operation is continued.
- step 10 other methods for reducing the shear force when the angle of the footrest 3 cannot be changed include the following (1) to (3).
- the drive mechanism is controlled so that the rate of change of the angle between the support means 2 and the footrest 3 for each time becomes small. In short, the angle change speed of the support member 2 and the footrest 3 is reduced.
- the thigh angle ⁇ 1 with respect to the trunk shown in FIG. 6 (A) and the crotch joint opening angle ⁇ 2 shown in FIG. 6 (B) are changed. Adjusting the angles ⁇ 1 and ⁇ 2 changes the way the load is applied to the knee joint. Specifically, for example, by changing the length of the support member, changing the height position of the footrest 3 with respect to the base 1, or changing the distance of the footrest 3 in the horizontal plane. The angles ⁇ 1 and ⁇ 2 can be changed. When the length of the support member 2 is shortened, the shear force is reduced by reducing the knee joint angle. Further, when the support member 2 tilts, the moving distance of the user's buttocks becomes smaller than when the support member is long. Therefore, the force acting on the knee joint can be reduced.
- an auxiliary support 60 that supports or pulls the user's lower limb is used.
- the auxiliary support member 60 is formed integrally with the support member 2, and supports or pulls at least one of the user's foot, lower leg, and thigh.
- the hardness can be adjusted by adjusting the internal air pressure, and it is cured when supported or pulled.
- the display unit 50 schematically shows the motor control amount, the movement of the support member 2 and the footrest 3, and the user's knee joint estimated by the calculation unit 13.
- the shearing force acting on the load can be displayed in a graph, or the time change of the load detected by the load sensor 30 can be displayed.
- data may be transmitted to an expert at a remote location via communication means so that advice can be received via the display unit.
- the exercise assisting device of the present embodiment includes a base 1 that is fixed to an installation surface such as a floor, a support member 2 that supports the buttocks of the user M, and a user's A pair of footrests 3 on which the foot is placed, a drive mechanism 4 for driving the saddle 22 of the support member 2 with respect to the base 1, a constitution estimation unit 6 for estimating the fat amount of the user, and a result of the estimation And a control unit 10 that controls the drive mechanism 4.
- the support member 2 includes a post 21 provided on the upper surface of the base 1, a box 25 that houses the drive mechanism 4, and a saddle 22 that is disposed on the top of the box and holds a user's buttocks.
- the position of the footrest 3 relative to the base 1 and the initial position (height position) of the saddle 22 can be adjusted so that the knee joint bends at a predetermined angle (for example, 40 degrees).
- a gasket spring can be used to adjust the height position of the saddle 22.
- the same configuration as raising and lowering the saddle of the bicycle can be adopted, or the saddle 22 can be moved up and down by a motor, or multiple seat members with different heights can be prepared to match the user's body shape. It may be possible to install it interchangeably.
- the footrest 3 is movable with respect to the base by an elastic member 37.
- the relationship between the load on the thigh and the movement range of the support member 2 is obtained in advance, and an elastic member having the optimal elastic coefficient is selected.
- the footrest 3 can keep the knee joint angle substantially constant during exercise.
- the footrest 3 is supported by the base 1 so as to be displaceable in the vertical direction via a pantograph-like mechanism that expands and contracts vertically and a spring.
- It has an upper surface that slopes toward the toe.
- a motor may be used to raise and lower the footrest 3.
- the tilt angle of the front and rear, the left and right, and the rotation angle about the vertical direction of the footrest may be changeable.
- number 51 is a pole provided between the two footrests 3, and number 52 is a handle 52 extending in the left-right direction at the upper end of the pole.
- the pole 51 and the handle 51 form a substantially T-shape.
- a pair of grips 54 that can be gripped by a user seated on the saddle 22 are provided at both ends of the handle 52.
- No. 12 is a touch panel type input unit for inputting the user's body weight and other information, and has a display on which information input by the user and an exercise menu are displayed.
- the grip 54 is gripped when estimating the user's constitution and is not normally used during exercise, but it is safe for the support member 2 when the user is an elderly person or a low-power person. Useful for getting on and off.
- the drive mechanism 4 includes at least one motor as a drive source for the saddle 22 and changes the inclination angle of the saddle 22.
- the upper surface of the saddle 22 is placed between a horizontal position and an inclined position on the surface including the support member 2 and each footrest 3. Can be reciprocated between. This makes it possible to prevent the lateral force from acting on the knee joint by making the movement direction substantially coincide with the knee bending direction. If the inclination angle of the upper surface of the saddle 22 changes, the load acting on the user's thigh changes, and as a result, the load acting on the footrest 3 also increases or decreases, so that the footrest 3 moves up and down in the height direction. Will move.
- the relative distance between the user's buttocks held by the saddle 22 and the position of the sole of the user's foot on the footrest 3 is kept substantially constant, the bending angle of the knee joint hardly changes. As a result, an isometric muscle contraction state is obtained, and the burden on the knee joint can be reduced.
- control unit 10 is mainly composed of a microcomputer and controls the drive mechanism 4 via the drive circuit 15.
- the drive circuit 15 is an interface between the control unit and the drive mechanism 4, and receives output from the control unit and supplies predetermined power to the motor.
- the user places his / her foot so that the sole of the foot is in close contact with the footrest 3 and is seated on the saddle 22.
- saddle 22 top surface By changing the tilt angle, the magnitude of the load acting on the user's thigh is changed.
- the load acting on the saddle 22 is Gll
- the load acting on the footrest is G12
- the saddle 22 is applied to the upper surface of the base 1.
- GllZG12> G2lZG22 is established, where G21 is the load acting when the upper surface of the base plate is inclined and G2 is the load acting on the footrest 3 at this time.
- the magnitude of the load acting on the user's thigh changes based on the inclination of the saddle 22. For example, the more the saddle 22 is tilted, the closer the user is to a standing posture and the greater the load acting on the thigh due to the user's own weight.
- this exercise assisting device includes a pair of first electrodes (60, 62) disposed on each footrest 3 as shown in FIG. 11 (A) and a grip 54 as shown in FIG. 11 (B). Two pairs of second electrodes (61, 63), and one of the first electrodes (60) and one of the second electrodes while the user puts his feet on the footrest 3 and holds the grip 54. A high-frequency current flows between the signal electrodes provided by (61) and, and the potential difference between the measurement electrodes composed of the other first electrode (62) and the other second electrode (63) is detected and used. And an impedance measuring unit 65 for measuring the biological impedance of the person.
- the constitution estimation unit 6 estimates the fat mass of the user using the output of the impedance measurement unit 65.
- the estimated fat mass of the user is preferably displayed on the display of the input unit 12.
- the measurement of the impedance of a living body to determine the body fat percentage of the user has already been performed. Simply put, the body fat contains less water than other parts of the body, so the greater the body fat, the greater the impedance. This principle is used to estimate the amount of fat in the body.
- impedance is measured using a plurality of electrode pairs, it is preferable that the frequencies of the high-frequency currents passed between the electrode pairs are different from each other. For example, if the impedance between both hands, the impedance between both feet, and the impedance between limbs are obtained, the impedance of the torso can be obtained by subtracting the impedance between both hands and both feet from the impedance between the limbs.
- the muscle mass may be estimated using the body fat mass and body weight measured between the limbs as parameters.
- the weight of the user's weight, height, age, and gender is used as the physical feature.
- the user can input the weight via the input unit 12.
- the estimation accuracy of fat mass and muscle mass is further improved.
- the control unit 10 controls the drive mechanism 4 by setting an appropriate amount of exercise for each user based on the estimated muscle mass and fat mass of the user.
- the exercise assisting device includes a weight estimating unit 70 and a height estimating unit 72, instead of the user himself / herself inputting the weight and height from the input unit 12.
- an energy metabolism calculation unit 16 for calculating the target energy metabolism per unit time of the user, and the control unit 10 uses the output of the energy metabolism calculation unit 16.
- the drive mechanism 4 is controlled. Accordingly, the other configuration is substantially the same as that of the second embodiment, and a duplicate description will be omitted.
- the weight estimating unit 70 calculates the weight of the user based on the output of the load sensor 30 provided on each footrest 3.
- the load sensor 30 for example, a load cell including a piezoelectric element or a device that detects the amount of spring tension with a differential transformer can be used.
- the load sensor 30 of the footrest 3 is detected as the weight of the user.
- a load sensor may be provided on the saddle 22 in addition to the footrest 3. The total value of the load detected by the pair of footrests 3 and the load detected by the load sensor of the saddle 22 is determined as the weight of the user.
- the height position of the saddle 22 can be adjusted to keep the bending angle of the knee joint of the user at a predetermined angle
- the height position of the saddle 22 (the length of the support member 2) is adjusted by the distance sensor 32. ) Can be measured.
- the height estimation unit 72 estimates the height of the user.
- the user's leg length may be estimated instead of height.
- the energy metabolism calculation unit 16 calculates the target energy metabolism per unit time of the user using the weight of the user and the output of the constitution estimation unit 6.
- the amount of exercise provided to the user is determined as energy metabolism such as glucose consumption. Since the posture of the user during exercise is almost determined, the load acting on the leg can be estimated based on the movement speed of the saddle 22 and the weight of the user.
- the muscle mass of the leg is estimated by the constitution estimation unit 6 using the weight of the user provided by the weight estimation unit 70 and the output of the impedance measurement unit in the same manner as in the second embodiment. Alternatively, the muscle mass of the leg may be estimated using the height of the user provided by the height estimation unit 72 and the output of the impedance measurement unit.
- energy metabolism such as glucose consumption per unit time can be determined using the load acting on the leg and the muscle mass of the leg.
- the energy metabolism of the user during exercise may be calculated.
- the energy metabolism calculated by the energy metabolism calculation unit 16 the muscle mass estimated by the constitution estimation unit 6, and the weight of the user obtained by the weight estimation unit 70, the operating speed of the saddle 22 is calculated. Is preferably determined. In this case, fat mass or both fat mass and muscle mass may be used instead of muscle mass.
- the exercise assisting device of the present embodiment has a configuration that more appropriately determines the amount of exercise applied to the user based on the biometric profile related to the user input from the input unit 12.
- the other configuration is substantially the same as that of the third embodiment, and a duplicate description is omitted.
- the exercise assisting apparatus of the present embodiment is provided with a menu storage unit 80, and a plurality of standard exercise menus are stored for each biometric profile.
- a recommended exercise menu based on the user's biometric profile input via the input unit 12 is read out by the menu storage unit 80 and executed by the control unit 10.
- the biological profile includes a user's weight, height, age, sex, presence / absence of a disease, type of disease, physical condition parameters such as cardiopulmonary ability, blood pressure, heart rate, exercise history, and the like.
- a user when the blood pressure is high, an exercise menu that reduces the load and lengthens the exercise time is preferable. Therefore, for example, if blood pressure is input, classification such as low blood pressure, normal blood pressure, and high blood pressure is performed, and an optimal exercise menu is extracted by collating with the menu storage unit 80. In this way, by inputting data unique to the user, a more appropriate exercise menu can be provided to the user.
- This exercise assisting device has a history recording unit 90 that stores a history of changes in fat mass and muscle mass for each user, and an evaluation that corrects the exercise menu based on the history recorded in the history recording unit. 92 is further provided. Since fat mass and muscle mass are estimated for each exercise, this information is stored in association with the storage date. For example, the difference between the fat amount at the start point and the end point of a certain period is obtained, and when the difference in fat amount is smaller than the specified target value, the evaluation unit 92 sets the exercise menu so that the exercise amount is increased once. to correct. Instead of fat mass, muscle mass or both fat mass and muscle mass may be used.
- the movement menu can be corrected by changing at least one of these. If the user wants exercise to increase muscles or the estimated muscle mass has not reached the target value, the exercise menu is corrected to increase the load.
- the menu storage unit 80 and the history recording unit 90 may be realized by a single storage device.
- changes in fat mass and muscle mass are displayed on the display unit 50 provided adjacent to the input unit 12 because the user's motivation to exercise can be increased.
- a diabetic and deformed knee joint having a reduced muscle strength, a user with reduced muscle strength, or a knee pain according to the exercise assisting device of the thigh can be effectively provided to patients with illness without straining the knee.
- the present invention can be safely provided with appropriate exercise stimuli for the leg of a user who has a disease in the knee, such as a diabetic patient, and thus is expected to promote further use of the exercise assisting device.
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Physical Education & Sports Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Rehabilitation Therapy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Rehabilitation Tools (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US11/658,351 US7942783B2 (en) | 2004-07-27 | 2005-07-21 | Exercise aid device |
EP05766428A EP1779904A4 (en) | 2004-07-27 | 2005-07-21 | TRAINING SUPPORT DEVICE |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004219323A JP4617755B2 (ja) | 2004-07-27 | 2004-07-27 | 運動補助装置 |
JP2004-219323 | 2004-07-27 |
Publications (1)
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WO2006011408A1 true WO2006011408A1 (ja) | 2006-02-02 |
Family
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PCT/JP2005/013369 WO2006011408A1 (ja) | 2004-07-27 | 2005-07-21 | 運動補助装置 |
Country Status (7)
Country | Link |
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US (1) | US7942783B2 (ja) |
EP (1) | EP1779904A4 (ja) |
JP (1) | JP4617755B2 (ja) |
KR (1) | KR100791584B1 (ja) |
CN (1) | CN100542637C (ja) |
TW (1) | TWI281856B (ja) |
WO (1) | WO2006011408A1 (ja) |
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- 2005-07-21 EP EP05766428A patent/EP1779904A4/en not_active Withdrawn
- 2005-07-21 KR KR1020077004424A patent/KR100791584B1/ko not_active Expired - Fee Related
- 2005-07-21 CN CNB2005800312727A patent/CN100542637C/zh not_active Expired - Fee Related
- 2005-07-21 WO PCT/JP2005/013369 patent/WO2006011408A1/ja active Application Filing
- 2005-07-21 US US11/658,351 patent/US7942783B2/en not_active Expired - Fee Related
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102309395A (zh) * | 2006-09-25 | 2012-01-11 | 松下电工株式会社 | 被动式运动辅助装置 |
CN101657174B (zh) * | 2007-04-25 | 2012-08-29 | 松下电器产业株式会社 | 运动辅助装置 |
CN102058959A (zh) * | 2010-02-26 | 2011-05-18 | 张贵师 | 健身椅 |
CN103961240A (zh) * | 2014-05-16 | 2014-08-06 | 哈尔滨工程大学 | 踝足康复训练装置及平衡训练系统 |
CN103961240B (zh) * | 2014-05-16 | 2016-09-14 | 哈尔滨工程大学 | 踝足康复训练装置及平衡训练系统 |
Also Published As
Publication number | Publication date |
---|---|
CN100542637C (zh) | 2009-09-23 |
US7942783B2 (en) | 2011-05-17 |
TWI281856B (en) | 2007-06-01 |
KR20070039965A (ko) | 2007-04-13 |
JP2006034640A (ja) | 2006-02-09 |
EP1779904A1 (en) | 2007-05-02 |
TW200605846A (en) | 2006-02-16 |
EP1779904A4 (en) | 2010-01-27 |
CN101022855A (zh) | 2007-08-22 |
US20080312040A1 (en) | 2008-12-18 |
JP4617755B2 (ja) | 2011-01-26 |
KR100791584B1 (ko) | 2008-01-03 |
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