JP4404419B2 - Thigh muscle training device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a training device for training a thigh muscle by a patient having a knee disease.
[0002]
[Prior art]
Accompanied by diseases such as ligament injury and knee osteoarthritis, the thigh muscles, ie, quadriceps (straight femur, lateral vastus muscle, middle vastus), hamstring (rear thigh, biceps When the semi-tendonous muscle or the semi-membranous muscle) is weakened, it is necessary to train the thigh muscle. The thigh muscle plays a major role as the extension or flexion muscle of the lower limbs and is also considered to be greatly involved in the stability of the knee joint. The influence of is great. Therefore, strengthening the muscular strength when the muscular strength is reduced has the effect of reducing the burden on the knee joint due to illness or the like. There are mainly the following four thigh muscle training methods. The first is called lifting exercises for the lower limbs. It is a method of repeatedly raising the lower limbs against gravity, the second is called squats, and the knee is bent and extended, and the third is for sitting. The lower leg is kicking out, and the fourth is walking. The first, second, and fourth methods have an effect of strengthening the strength of both quadriceps and hamstrings, and the third method is a training method centered on the quadriceps. For the first method, a weight is attached to the ankle to increase the load. For the second method, the load is increased by placing a weight on the upper body. For the third method, the load is increased. In the sitting position, the weight is increased by attaching a weight to the foot or by attaching an elastic body such as rubber to the ankle, etc., and for the fourth method, the weight is applied to the body or the load is increased by walking on the slope. In addition, there is a device corresponding to each means. The conventional methods described above are methods for training the thigh muscles by exercising in the direction opposite to the direction of gravity, and basically forging the thigh muscles by using the lower leg as a power point or a fulcrum. This is because the force point is farther from the knee joint, so the extra burden on the knee is large, and it is difficult to quantitatively grasp and manage the training.
[0003]
[Problems to be solved by the invention]
An object of the present invention is to train a thigh muscle while reducing the burden on the knee joint, to quantitatively manage training conditions (load, time, number of times), and to allow a user to recognize the training state Is to provide.
[0004]
[Means for Solving the Problems]
In order to solve the above-described problems, in the present invention, a load receiving unit for placing the popliteal portion of the lower limb bent slightly, a sensor for detecting a load applied to the load receiving unit, and a training program are set. A control unit.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
In the present invention, the load receiving portion arranged to be movable in the vertical direction above the bottom plate, the adjustment plate arranged to be adjustable in the vertical direction above the bottom plate, and inserted between the adjustment plate and the load receiving portion. Pre-set training by the control unit with a load generating unit and a sensor for detecting the displacement of the load receiving unit, placing the popliteal portion of the lower limb lightly bent on the load receiving unit and pressing it against the load receiving unit It is preferable that the thigh muscle reinforcement training can be performed according to the program for the patient.
[0006]
The adjustment unit is attached to the adjustment plate, and by operating this adjustment unit, the adjustment plate is moved up and down, and the distance between the adjustment plate and the load receiving unit is changed to change the set load of the load generation unit inserted between them. The value can be adjusted, and an appropriate load value can be selected according to the symptoms of the user.
[0007]
A load receiving part arranged to be movable in the vertical direction above the bottom plate, an adjustment part arranged to be adjustable in the vertical direction above the bottom plate, a load generating part inserted between the bottom plate and the load receiving part, and adjustment It is possible to adjust the set load value of the load generating unit by changing the distance between the sensor and the load receiving unit by operating the adjusting unit. Thus, an appropriate load value can be selected according to the user's symptoms.
[0008]
A load receiving part arranged so as to be movable in the vertical direction above the bottom plate, and a pressure sensor on the bottom plate so as to face the load receiving part, so that the load applied to the load receiving part is directly detected and preset. The user may apply a load according to the training program.
[0009]
The load receiving portion is preferably formed in a bowl shape so that the popliteal portion is stably placed. It is preferable to install a cushioning material on the surface of the load receiving portion in order to improve the feel when used, and a material with a smooth surface to reduce friction. Further, the load receiving portion can be supported on the bottom plate so as to be movable in the vertical direction by a slider and a linear rail for guiding the slider.
[0010]
The load generating unit can be constituted by a spring, for example.
[0011]
The sensor can be configured as a switch, pressure sensor, or potentiometer.
[0012]
Examples of the training program include the magnitude of the load to be applied to the training apparatus by the lower limbs, the time to continuously apply the load, the number of repetitions of applying the load, and the display of the load state.
[0013]
【Example】
Next, embodiments of the present invention will be described with reference to the drawings.
[0014]
FIG. 1 shows an embodiment of the present invention, in which a is a schematic perspective view and b is a longitudinal front view. In addition, a of a figure has shown the load receiving part in the transparent form in order to make an internal structure easy to understand. 1 is a bottom plate that supports the whole, 2 is an adjustment plate that is placed above the bottom plate 1 to adjust the load, 3 is a load receiving portion formed in a bowl shape, and 4 is a ceiling on which the popliteal portion of the load receiving portion 3 is placed. A plate 5 is a load generating portion formed by a spring or the like provided on the adjusting plate 2 and inserted between the load receiving portion 3, and 6 is a hollow cylindrical slider provided on both side walls of the load receiving portion 3. , 7 is a linear rail that passes through the slider 6 and guides the slider 6 in the vertical direction, and 8 is a position in which the adjustment plate 2 is adjusted in the vertical direction to change the gap between the adjustment plate 2 and the load receiving portion 3 to generate a load. An adjustment unit 9 for adjusting the load value of the unit, 9 is a sensor that is placed at one end of the bottom plate 1 so as to face the load receiving unit 3, detects a displacement of the load receiving unit 3, and sends a signal, 10 is a control unit is there. The sensor 9 includes a switch that performs a switching operation at a predetermined displacement position, a displacement of the load receiving portion, or a potentiometer that converts the displacement of the spring into an electric signal by an electric resistance when a spring is used for the load generating portion. A pressure sensor or the like that detects the force transmitted from the unit can be used. The control unit 10 sets various load conditions necessary for the training program, that is, the magnitude of the load that the lower limb should apply to the training apparatus, its duration, the number of repetitions, etc., and reaches the set target load state. It has a function of displaying whether or not it has been made visually or audibly.
[0015]
FIG. 2 is an explanatory diagram of a method of using the training apparatus shown in FIG. The user takes a sitting or supine posture, places the lower limb 21 on the training device so that the popliteal portion 22 of the lower limb 21 is positioned on the top plate 4 of the load receiving portion 3, and generates a load on the load receiving portion 3. performing strength training of the thigh muscles by repeating a predetermined number of times to apply a force persist leg Jo Tokoro time to push downward against the upward force that is caused upwards by part 5. The force, duration, and number of times that the lower limb should apply follow a program preset in the control unit 10.
[0016]
FIG. 3 is an example of a flowchart of the entire training performed using the training apparatus of the present invention, and shows a case where a potentiometer is used as a sensor. A is a flowchart for performing various settings for the control unit 10 in accordance with a training program, and B is a flowchart for training. When the lower limb is placed on the top plate 4 of the load receiving unit 3 of the training apparatus as described above, the weight of the leg is applied to the load receiving unit 3 (step S1). The weight varies depending on the weight of the user's leg and how the leg is placed, and is in the range of 0 to 20 kg, for example. This weight is detected by the potentiometer 9, and is displaced, for example, in the range of 0 to 10 mm (step S2). The initial value of the potentiometer is set to the reference value 0 in order to compensate and calibrate the load value difference due to the difference in leg weight (step S3). Next, the load value is set to, for example, 5 kg, 10 kg, 15 kg, and 20 kg (step S4). This is performed by operating the adjustment unit 8 and moving the adjustment plate 2 up and down to set the displacement amount of the potentiometer. Further, the timer time is set to, for example, 5 seconds, 10 seconds, 15 seconds, and 20 seconds (step S5). The training is started, the training device is pushed in with the leg (step S6), and when the previously set load value (5, 10, 15 or 20 kg) is exceeded (step S7), the buzzer of the control unit 10 sounds (step S8). On the other hand, the timer starts (step S9), and the buzzer stops at the set time (step S10). Accordingly, when the leg is lifted, the load value becomes 0 kg (step S11), and the displacement of the training apparatus becomes 0 (step S12). The number of times is counted (step S13), the timer returns to 0 seconds (step S14), and the above operation is performed a predetermined number of times, and the training ends when the count number reaches a set value.
[0017]
FIG. 4 is a detailed flowchart of a potentiometer used as a sensor. As described in the flowchart of FIG. 3, when the leg is placed on the load receiving portion 3 of the training apparatus (step S1), the top plate 4 of the load receiving portion 3 is displaced downward by the weight of the leg (step S2). By turning on SW3 provided in the control unit in step S3, a signal is added to erase the potentiometer output signal due to the weight of the first loaded knee, and calibration is performed (step S4). Set to zero. Next, when the load receiving portion 3 of the training apparatus is pushed with the back of the knee (step S5), the top plate of the load receiving portion 3 is displaced downward (step S6). It is determined whether or not the displacement is a set value of 5 mm or more (step S7). If the displacement is 5 mm or more, the sound generator provided in the control unit 10 starts to sound a melody (step S8). Next, time measurement is started (step S9), and it is determined whether or not the displacement is maintained at 5 mm or more (step S10). If the displacement is maintained, the time is measured (step S11), and the displacement is less than 5 mm. When it falls, the control part 10 sounds a warning sound (step S12), and a measurement stops (step S13). The measured time is integrated (step S14). For example, when the set 10 seconds elapse, the melody of the control unit 10 stops (step S15) and is counted once (step S16). Therefore, it is determined whether or not the number of counts has reached, for example, 10 times (step S17), and if it has not reached 10 times, the integration time is reset (step S18). The power is released (step S19). The knee is again placed on the training device (step S1), and the device is pushed behind the knee (step S5). Note that steps S2 and S3 for calibration as in the first case are not required between these steps. Thereafter, the same movement as that after step S6 is performed, and when the counts of the results are sequentially accumulated and reach 10 times set in step S17, the control unit 10 sounds a buzzer (step S20). In this state, the lower limb is raised (step S21), and the training is completely finished (step S22). The switch SW2 provided in the control unit 10 is shut off (step S23), and the accumulated time is reset (step S24). When the integration time is less than 10 seconds in step S14, the process returns to step S10 again. In addition, about the time measurement, the above-mentioned example demonstrated what measures integration time. That is, even when the actual load is lower than the set load during the training, the load is allowed to increase further, and the time exceeding the set value is integrated. However, if it is considered that such a training method is not effective, once the training is started and it falls below the set value in the middle, the time until then is set to 0, and only the time when the load continuously exceeds the set value is measured. The continuous time can also be set so as to be able to.
[0018]
FIG. 5 is a detailed view of a flowchart when the pressure sensor is used. The pressure sensor detects the reaction force generated in the load generation unit, and sends the value to the control unit 10 as an electrical signal. Also in this case, training is performed in a flow substantially similar to the flowchart shown in FIG. 4, and the same parts are denoted by the same reference numerals. In this case, when the leg is placed on the load receiving portion 3, the top plate of the load receiving portion is displaced, and the reaction force generated by the load generating portion is directly detected by the pressure sensor and becomes a set load value, for example, 10 kg or more. (Step S7), and it is determined whether or not the reaction force maintains the set load value or more (step S10).
[0019]
FIG. 6 is a detailed diagram of a flowchart when using a switch as a sensor, and training is performed in a flow almost the same as when using the potentiometer shown in FIG. 4, and each step is given the same reference numeral as in FIG. Yes. In this case, the displacement calibration based on the weight of the knee when the first knee is put is performed by changing the gap between the switch as the sensor and the load receiving portion 3 unlike the case of FIG. When the top plate of the load receiving portion 3 is displaced as a result of applying the force after placing the knee (step S6), the switch SW1 is turned ON if there is a displacement greater than a predetermined value (step S7), and the switch SW1 is still in step S10. When SW1 is in the ON state, the time is measured (step S11), and when SW1 is in the OFF state, the melody is stopped (step S24) and the measurement is stopped (step S25), unlike the flowchart of FIG. It is determined whether or not the switch is kept on (step S26). If the switch is kept on, the melody is restarted (step S27) and the time is measured (step S11). If the 0N state is not maintained in step S26, that is, if it is in the OFF state, the melody stops again (step S24). Moreover, when the integration time reaches a predetermined value in step S14, the melody is stopped and a warning sound is sounded for a predetermined time (step S15). Note that the switch SW2 that is cut off in step S23 is a switch different from the switch SW1 as a sensor that operates in steps S7 and S10. Also in this flowchart, the same operations as the flowcharts shown in FIGS. 4 and 5 can be performed with respect to the above-described differences, and a part of the flowcharts shown in FIGS. It is also possible to perform the above-described operation.
[0020]
FIG. 7 is a longitudinal sectional front view and b is a partially cutaway side view of a different embodiment of the present invention. Parts equivalent to those in FIG. In this embodiment, unlike the embodiment of FIG. 1, there is no adjustment plate for adjusting the load value of the load generating portion, and the sensor 9 is disposed on the adjustment portion 8 provided at the center of the bottom plate 1. The sensor 9 is opposed to the protruding portion 71 provided inside the load receiving portion 3, and the load value is adjusted by changing the distance between the sensor 9 and the protruding portion 71 by adjusting the adjusting portion 8. It is like that. A support portion composed of a hollow cylindrical slider 6 provided at both inner ends of a load receiving portion 3 formed in a bowl shape and a linear rail 7 which is planted on the bottom plate 1 and guides the slider 6 is a bottom plate 1. One set is arranged on each of the left and right sides between the load receiving portion 3 and a load generating portion 5 composed of a spring or the like is provided on both sides of each support portion. The control unit 10 is placed on the bottom plate 1. The operation of this training apparatus is almost the same as that of the embodiment shown in FIG. That is, when the popliteal portion is placed on the top plate 4 of the load receiving portion 3 and a force is applied, the load receiving portion 3 sinks, and the projecting portion 71 and the sensor 9 on the inside act to interact with each other. Or the reaction force of the load generating part is detected.
[0021]
FIG. 8 is an explanatory diagram of the usage state of another embodiment of the present invention. Parts equivalent to those in the embodiment of FIG. In this embodiment, the bottom plate 1 is formed in a bowl shape so that the lower limb 82 can be inserted into the lower portion of the top plate 81, the adjustment plate 2 is placed on the top plate 81 of the bottom plate 1, and the load receiving is received. 1 is different from the embodiment of FIG. 1 in that a belt 83 is hung on the portion 3. In this training apparatus, the lower limb 82 is inserted below the top plate 4 of the bottom plate 1, the upper and lower sides of the popliteal portion 84 are supported by the belt 83, and when force is applied to the lower limb, load is applied via the belt 83. The receiving part 3 moves downward.
[0022]
In each of the above-described embodiments, by providing the load generating unit, it is possible to clearly recognize that the user has applied a load to the lower limbs, and there is an effect of promoting a positive attitude toward training and obtaining satisfaction.
[0023]
FIG. 9 shows another embodiment having no load generating part, a is a longitudinal front view, b is a partially cutaway side view, and parts equivalent to those in FIG. In this embodiment, unlike the embodiment of FIG. 1, the load generating portion is not provided, and therefore the adjusting plate is not provided. A projecting portion 91 is provided at the center of the bottom plate 1, and a pressure sensor 92 is disposed on the projecting portion 91 so as to face the inner surface 93 of the top plate 4 of the load receiving portion 3 with a slight gap 94. Yes. The bottom plate 1 further has two support portions 95 on both sides, and springs 97 are inserted between the two projections 96 provided on both sides inside the load receiving portion 3. Unlike the spring as the load generating portion of FIG. 1, this spring does not generate a load on the load receiving portion, but supports the load receiving portion and the user puts a knee on the load receiving portion 3 and puts a force. Sometimes it is possible to experience the feeling of training with a slight resistance from the spring. In this training apparatus, when a user applies a force and the load receiving unit 3 sinks and a force is applied to the pressure sensor 92, the pressure sensor 92 detects the force and is set for the training set in advance by the control unit 10. Training can be carried out according to the program. The training device according to this embodiment can be made compact with a very simple configuration.
[0024]
The training apparatus of the present invention is used in a normal sitting position or a supine position, but may be in a lying position, and may be used in a prone position by reversing the top and bottom of the above apparatus. It is possible when it is difficult to take a sitting or supine posture due to symptoms.
[0025]
【The invention's effect】
According to the present invention, the thigh muscle reinforcement training can be performed without imposing a heavy burden on the knee joint and the ankle joint, and therefore, the thigh muscle training can be performed even in a symptom in which the burden is difficult to be applied to these joints. Early rehabilitation is also possible, and by using the control unit, appropriate load values and load times can be set according to the symptoms, and appropriate training can be performed on the thigh muscles with markedly weak muscle strength. Can be expected, and the effect as muscle strength enhancement can be expected.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view of an embodiment of the present invention, and FIG.
FIG. 2 is an explanatory diagram of how to use the embodiment shown in FIG.
FIG. 3 is a flowchart of overall training according to an embodiment of the present invention.
FIG. 4 is a flowchart when a potentiometer is used as the sensor of the present invention.
FIG. 5 is a flowchart when a pressure sensor is used as the sensor of the present invention.
FIG. 6 is a flowchart when a switch is used as the sensor of the present invention.
7A is a longitudinal front view, and FIG. 7B is a partially cutaway side view of different embodiments of the present invention.
FIG. 8 is an explanatory diagram of a usage state of still another embodiment of the present invention.
FIG. 9 is a longitudinal sectional front view, and b is a partially cutaway side view of still another embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Bottom plate 2 Adjustment plate 3 Load receiving part 4 Load receiving part top plate 5 Load generating part 6 Slider 7 Linear rail 8 Adjusting part 9 Sensor 10 Control part 21 Lower limb 22 Poplite part 71 Protruding part 81 Bottom plate top plate 82 Lower limb 83 Belt 84 Popliteal portion 91 Protruding portion 92 Pressure sensor 93 Load receiving portion 94 Gap 95 Supporting portion 96 Protrusion 97 Spring

Claims (4)

A load receiving for placing the popliteal of the lower limb which was lightly bent, a sensor for detecting a load applied to the load receiving portion, thigh muscle exercise device and a control unit for setting a training program . Thigh muscle training device 請 Motomeko 1 wherein the load receiving portion that is formed in a saddle shape. Wherein the sensor thigh muscle training device 請 Motomeko 1 wherein that is configured as a switch. Wherein the sensor thigh muscle training device 請 Motomeko 1 wherein that is configured as a pressure sensor.

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