KR20090006999U - measurement device for arm muscular strength and tetany accuracy - Google Patents

Abstract

The present invention relates to a device for measuring arm muscle strength and stiffness, and more particularly, to a device capable of fixing the arm to a designated place and measuring the maximum muscle strength, stiffness angle, degree, etc. of the arm by using a constant velocity exercise device. .

Arm muscle strength and stiffness measuring apparatus according to the present invention is configured by dividing into the outside and the inside, the protractor 40 of the left 90 degrees, the right 90 degrees around the arm fixing band 13 is displayed, the protractor ( 40 is located in the center of the arm support 10 that can put the arm. The handle 11 is located at the end of the arm support 10, the handle 11 has a position fixing device can be fixed by adjusting the position of the handle 11 according to the length of the arm on the arm support 10. The arm fixed to the arm fixing band 13 is characterized in that the muscle strength and stiffness are measured while moving clockwise or counterclockwise through the handle 11.

Arm, arm movement, strength, stiffness, maximum strength, stiffness occurs, stiffness, measurement

Description

Measurement device for arm muscular strength and tetany accuracy}

The present invention relates to a device for measuring arm strength and stiffness, and more particularly, by measuring the force corresponding to the motion of the isokinetic exerciser, it is possible to measure the timing, angle, degree, etc. of maximum arm strength and stiffness of the arm. It relates to a muscle strength and stiffness measuring device.

In general, muscle strength and stiffness measurement is a test performed to check the condition and extent of patients with musculoskeletal disorders such as rehabilitation medicine, orthopedic surgery, and neurosurgery. The method of measuring by the method and the multipurpose isokinetic exercise machine are used.

The isokinetic exercise mentioned above is muscle contraction, in which the length of the muscle changes while muscle contraction occurs at a constant rate. In theory, the maximum resistance is given over the entire range of motion of the machine. The resistance provided by the device is exercised only at a given speed, regardless of the degree of strength development of the individual. Therefore, the key to isokinetic motion is not the resistance but the speed at which it moves. The amount of resistance during isokinetic exercise depends on the force the athlete can exert. Several isokinetic exercise machines are available as products. Cybex, Biodex, Kincom, etc. are the names of many isokinetic exercise devices. In general, isokinetic exercise equipment uses water pressure, air pressure, and mechanical pressure to constantly adjust the speed of movement. An advantage of isotropic exercise equipment is that both centripetal and centrifugal contractions can be simultaneously performed at a fixed rate to the motor muscles. The main disadvantage of this apparatus is its cost. Various accessories, such as computers and printers, must be fitted to the device in order to be used as a diagnostic and recovery mechanism to treat various injuries. Isokinetic fitness equipment is designed to move resistance at a constant speed, regardless of the applied force. Whether the maximum force is applied or half of his force is applied, the speed will be the same. After all, when training with isokinetic exercise, it is absolutely necessary to express the corresponding force against resistance in order to obtain maximum strength.

The subjective measurement method of the conventional measurement method has a disadvantage in that the subjective opinion of the attending physician has a lot of effect, and the objective value cannot be obtained, and in the case of measuring by the multipurpose isotropic exerciser, It is difficult to use in small private clinics because only the large hospitals are larger than the second. Patients with symptoms that can be cured without going to a tertiary hospital, such as arm hemiplegia or fractures, do not go to a large hospital to measure their strength and stiffness, and have the inconvenience of not knowing their exact strength and stiffness. have.

The present invention is to solve the problems of the conventional isokinetic muscle strength and stiffness measuring device as described above, the objective and accurate numerical data output without subjective opinions, and inexpensive to specify and measure only the arm muscle strength and stiffness And to develop compact equipment.

In order to achieve the above object, the arm muscle strength and stiffness measuring device according to the present invention combines the arm support 10 with the drive motor 20 generating a constant velocity motion in a sawtooth shape and clockwise or counterclockwise together. It is possible to move, fixed to the spring 31 having a constant elasticity on the left and right with respect to the arm support 10, one end of the spring 31 in close contact with the pressure measuring sensor 32, When 10) moves clockwise or counterclockwise, the pressure value generated in the spring 31 can be measured by the pressure measuring sensor 32.

The drive motor 20 used in the present invention is capable of driving in a clockwise or counterclockwise direction, and has a durability that withstands a force against a normal driving force.

 In addition, the driving force of the drive motor 20 should be one that has a variability that can be changed by the increase or decrease of power.

By the above means, the strength and stiffness measuring apparatus according to the present invention can obtain a quantified value, and has the advantage that the strength and stiffness can be more easily measured by reducing the volume and weight to improve portability.

The arm muscle strength and stiffness measurement apparatus described above and illustrated in the drawings are only one embodiment for carrying out the present invention, and should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is defined only by the matters described in the following Utility Model Registration Claims, and the embodiments of the present invention which have been improved and changed without departing from the gist of the present invention will be apparent to those skilled in the art. As long as it is one will belong to the protection scope of the present invention.

In order to achieve the above object, the arm muscle strength and stiffness measuring apparatus according to the present invention, the arm support 10 and the arm fixing band 13 is located outside. And the status display window 50 for displaying the result value and the input keypad 60 for controlling and controlling the operation of the device is located. One end of the arm support 10 has a male tooth 12 so that it is in close contact with the pressure teeth 21 of the internal drive motor 20, and the arm support 10 that is in close contact with the driving motor 20 is operated. As a result, the motion is constant in the clockwise and counterclockwise direction. A handle 11 is attached to the opposite side of the arm support 10 connected to the drive motor 20, and the handle 11 is variable according to the user's arm length using the position fixing button 11a on the arm support 10. You can change the location with. When the arm support 10 is oriented with respect to the drive motor 20 and the handle 11, since both ends of the arm support 10 meet the drive motor 20 and the handle 11, one direction is driven. If the motor 20 direction, the opposite side is the handle 11 direction, the curved tube 30 is connected under the arm support 10 in the handle 11 direction. The left and right curved tube 30 is formed to move along the arm support (10). The inside of the curved tube 30 is a spring 31, the end of the arm support 10 is connected to one end of the spring 31, the pressure measuring sensor 32 is fitted on the opposite side. By placing the spring 31 between the arm support 10 and the pressure measuring sensor 32, the force transmitted to the spring 31 as the arm support moves can be measured by the pressure measuring sensor 32. will be. Since the arm support 10 can reciprocate between 0 degrees and 90 degrees, the curved tube 30 and the spring 31 contained therein allow a slight margin for the arm support 10 to perform a perfect movement. Curved tube 30 with an angle of about 100 degrees is used. The spring 31 is connected to the bidirectional curved tube 30 in the same manner as described above. Both ends of the curved pipe 30 on the left and right sides are in close contact with the pressure measuring sensor 32. An example of using the arm strength and stiffness measuring device described above is fixed using the arm fixing band 13 of the subject to be measured first as shown in the flowchart of FIG. 2, and using the position fixing button 11a. The handle 11 is fixed on the arm support 10 in accordance with the arm length. And input the reference value such as gender, age, weight, height, inclination, arm direction, arm length through the input keypad (60), and press the start button. Taking the right hand as an example, the first measurement is a maximum strength test, which gradually increases the driving force of the drive motor 20 which rotates the arm support 10 clockwise, gradually increasing the force to hinder the rotational movement of the arm support 10. By measuring, the subject's strength can be measured. The maximum muscle strength value is recorded by measuring whether it can withstand the driving force of the driving motor 20 and for how long. At the end of the maximum strength test, the stiffness test is followed. The stiffness test measures the degree of stiffness and the degree of stiffness. When the stiffness is generated, the rotation of the arm support 10 counterclockwise to determine whether the force is generated, and to measure the angle and the opposing force of the opposing point. Oppositional force here means the degree of stiffness. After the above maximum strength test and stiffness test, you can choose whether to finish the measurement or take the measurement again.When the measurement is finished, compare the measured value with the reference value and output the status and level of the subject to the status display window 50. do. The reference value used in this process means that a standard value of a normal person is selected in advance with values such as gender, age, weight, height, etc. to measure. The above process is a test of measuring the strength and stiffness of the right arm, the same process by applying the left hand to the same process is the end of all the arm strength and stiffness measurement.

1 is a cross-sectional view conceptually showing an arm muscle strength and stiffness measuring apparatus according to an embodiment of the present invention

2 is a flowchart illustrating a method of measuring arm strength and stiffness according to an embodiment of the present invention.

<Short description of the major reference symbols>

1 arm strength and stiffness measuring device

10 Arm Support (10)

11 handle (11)

11a lock button

12 teeth

13 arm fixing band

20 Drive Drive Motor (20)

21 teeth

30 Curved Tube (30)

31 springs

32 pressure measuring sensor

40 protractor (40)

50 Status Status Display (50)

60 Input Keypad (60)

Claims (3)

The motor uses the cogs to rotate the arm support close to the curved tube, and the force to interfere with the rotation movement to measure the muscle strength and stiffness of the subject's arm with a curved tubular pressure measuring device Arm strength and stiffness measuring device. The method of claim 1, The inside of the curved tube is connected by a spring between the arm support and the pressure sensor, the arm is characterized by measuring the force transmitted to the spring using the pressure measuring sensor connected to the opposite side while rotating the arm support Strength and stiffness measuring device. As in the procedure of the flowchart of Figure 2, By setting the reference value through physical information such as sex, age, and weight of the subject, and gradually increasing the power of the motor, the maximum strength of the subject's arm, the angle at which the stiffness occurs, and the degree of stiffness are measured. Arm strength and stiffness measuring device, characterized in that for displaying the time and angle of occurrence of stiffness, degree of stiffness.

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