SK10119Y1 - Isokinetic hydraulic force measuring device - Google Patents

Abstract

The isokinetic hydraulic force measuring device enables testing of strength abilities and exercising the muscles of the whole body. The technical solution can be used for diagnostic, strength and rehabilitation exercises. The device consists of a horizontal base (1) on which a beam (2) and a beam (3) with a positionable rotating double pulley (4) are fixed perpendicularly, through which a rope (5) is guided by a system of pulleys (7) ended at one end by a carabiner (6), while pulling it changes the position of the movable arm (9), attached to the beam (2), ended by a counterweight (11) and supported by a hydraulic concentric piston (10), connected to the base (1), where its movement is limited by a stop (12). By tensioning the rope (5), the applied force is measured by a force meter (8), firmly connected to the rotating double pulley (4) and the results are visualized on the input-output unit (13).

Description

The field of technology

The technical solution concerns an isokinetic hydraulic device for measuring the strength of the muscles of the human body in the exercise/testing process. The technical solution can be included in the field of sports, diagnostics, rehabilitation and medicine.

Current state of the art

Isokinetic devices enable testing of strength abilities and exercising the muscles of the whole body. They enable maximum muscle contraction at every point of the range of motion. Thanks to the maximum load of the active muscles during the entire range of motion, it is possible to perform far greater work than in classical motion, where the muscle force expended during the motion is not constant. An isokinetic testing machine is described in document US6561990B1 (GILLIAM THOMAS B.; WELLS ROBERT L.) 13.05.2003 which specializes in leg, arm and back tests. Another example of the implementation of the solution is described in the document US10946245B2 (Schmidt Design, LLC) 16.03.2021, which uses a pulley mechanism controlled by a microcomputer for practice. In the following embodiment, which is described in the document US5318491A (HOUSTON; VINCENT) 07.06.1994, the solution allows comparing the current performance of the exerciser with a determined reference standard for mobility training. These mentioned solutions have the ability to develop and measure muscle strength, using mainly electric isokinetic motors or various mechanical and spring mechanisms.

The essence of the technical solution

The isokinetic hydraulic strength measuring device is used for strengthening and testing muscles. It creates new possibilities in training and diagnostics. It provides the exercisers with immediate information about the measured strength of the given muscle part. Peak and average power can be measured. It thus increases motivation and provides the exercisers themselves with information about their current state, while having a positive effect on their performance. In the case of impaired performance, this is a signal to look for causes and adjust the exercise program or other causes in lifestyle.

Thanks to this, the device enables the strengthening of skeletal muscles during slow movements, when the muscles develop high force, but also at high speeds, approaching sports performance.

The technical solution includes a hydraulic piston connected to an arm, which is moved during the exercise by pulling a rope through a system of pulleys terminated by a load cell, while the measurement values are displayed in real time on the input-output unit.

Overview of images on drawings

The technical solution is explained in more detail with the help of pictures, while fig. 1 contains a wireframe of an isokinetic hydraulic force measuring device in a 3D view.

In fig. 2 is an isokinetic hydraulic device for measuring force in views and in section for a more detailed representation of individual functional parts.

In fig. 3 is a perspective view of an isokinetic hydraulic force measuring device.

Implementation examples

The isokinetic hydraulic device for measuring force consists of a horizontal base 1, on which a beam 2 and a beam 3 are firmly fixed perpendicularly. The beam 3 contains holes for a possible vertical change in the position of the rotating double pulley 4. The rotating double pulley 4 is guided by a rope 5 terminated at the free end by a carabiner 6 The rope 5 is guided by a system of seven pulleys 7 from the carabiner 6 to the load cell 8, which is firmly connected to the rotating double pulley 4. Exercise on the device is possible thanks to the movable arm 9 and the hydraulic piston 10. The arm 9 is connected to the beam 2 and terminated by the counterweight 11. , which tightens the rope 5 and ensures the return of the mechanism to the initial position. The isokinetic movement is ensured by the hydraulic concentric piston 10, which serves as a load in the exercise process together with the counterweight 11 and also performs the function of a shock absorber when the arm 9 returns to the starting position. In order not to damage the piston 9, the beam 2 contains a stop 12 for the arm 9. The load cell is connected to the input-output unit 13, which ensures data collection, evaluation and visualization. The input-output unit 13 can be positioned as desired on the structure within the range of the load cell 8.

The technical solution of the isokinetic hydraulic apparatus for strengthening and testing can be used for diagnostic, strength and rehabilitation exercises. With this type of load, the muscles work in the entire range of 5 movements with a constant angular velocity, which provides an alternative stimulus for the working muscle groups compared to standard exercise. The height adjustability of the rotating double roller 4 allows you to exercise the muscle parts of the whole body, as well as to perform various movements in all directions.

Industrial applicability

The isokinetic hydraulic device can be used if it is necessary to exercise and test the muscles of the human body in the process of rehabilitation or strengthening of the musculoskeletal system as part of various exercise programs aimed at increasing performance in sports. A variable change in the height of the rotating double pulley makes it possible to engage several muscle segments, thanks to which a wider range of muscle parts of the upper and lower body as well as the trunk can be engaged at different angular speeds.

Claims (1)

An isokinetic hydraulic device for measuring force, characterized by the fact that it contains a hydraulic piston (10) connected to an arm (9) on which a counterweight (11) is mounted, while the arm (9) is connected by a rope (5) through a system of pulleys ( 7) with a force meter (8), which is connected to the input-output unit (13) to display the measurement in real time.