A dance kicking training device and a training method

Abstract

The present invention provides a dance leg-kicking training device and a training method. The device includes a support frame, a rolling member, a traction rope, a leg fixing member, a driving mechanism and a sensor assembly. The rolling member is arranged on the support frame. The first end of the traction rope is wound around the rolling member, and its second end is connected to the leg fixing member. The driving mechanism is arranged on the support frame and connected to the rolling member, and is used for driving the rolling member to roll, so as to contract or extend the traction rope, and further lift or lower the leg. The sensor assembly is arranged at a relative interval with the support frame and electrically connected to the driving mechanism, and is used for controlling the driving mechanism to be in a static state when the leg kicks to a preset angle, so that the leg can stay at the preset angle, which can relax the muscle tissue of the thigh root and achieve the training effect of making the legs slender and straight. The present invention standardizes the action requirements and training skills of ground leg-kicking training through the dance leg-kicking training device, and improves the safety and autonomous training efficiency of leg-kicking training.

Description

Technical Field

[0001] The present invention belongs to the technical field of dance equipment, and particularly relates to a dance leg-kicking training device and a training method. Background Art

[0002] In various types of dance art training systems, leg-kicking training is the most basic and important content. For training groups with relatively young ages and relatively weak dance foundations, especially in the process of dance aesthetic education in the basic education stage, ground leg-pressing and leg-kicking are generally used to carry out the training of leg flexibility. In the field of sports science, the leg-kicking training process is extremely complex: it requires the close cooperation and linkage of the human sacroiliac joint, hip joint, knee joint, and foot joint to complete a large number of sagittal axis movements, frontal axis movements, vertical axis movements, and intermediate axis movements, etc.; it requires the full extension and explosive training of the lower limb muscles such as the pelvic movement muscles, hip movement muscles, knee movement muscles, and foot joint movement muscles to complete different types of lower limb rhythms such as bouncing and control.

[0003] Currently, most of the dance aesthetic education courses for children and adolescents in the basic education stage focus on the training and learning of basic dance skills. Due to the weak foundation of students, uneven quality of venue facilities, and insufficient professionalism of teachers, etc., the training loopholes, risks, and low training efficiency of traditional training methods are exposed, which are prominently manifested as the risk of sports injuries and the singularity of the training methods for key movements. Due to the requirements of the continuous ballet training system, the leg-kicking process requires "tiptoe with force" to relax the muscle tissue of the thigh root and achieve the training effect of long and straight legs. The traditional training process generally relies on the teaching experience of teachers and uses hand-operating techniques to help the trainees complete the movements, but its sports risk is relatively large. Moreover, the traditional teaching requires the trainees to complete the control of the movement amplitude and limb state relying on personal awareness, which has certain non-standardization and uncertainty.

[0004] In view of the above problems, it is necessary to propose a dance leg-kicking training device and a training method with reasonable design and effective solution to the above problems. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art, and provides a dance leg-kicking training device and a training method.

[0006] One aspect of the present invention provides a dance leg-kicking training device, and the device includes:

[0007] A support frame;

[0008] A rolling member, arranged on the support frame;

[0009] A traction rope, the first end of which is wound around the rolling member, and the second end of which is connected to a leg fixing member;

[0010] A driving mechanism is arranged on the support frame and connected to the rolling member, and is used to drive the rolling member to roll, so as to contract or extend the traction rope, and further lift or lower the leg;

[0011] A sensor assembly is arranged at a relative interval with respect to the support frame and is electrically connected to the driving mechanism, and is used to control the driving mechanism to be in a stationary state when the leg kicks to a preset angle.

[0012] Optionally, the sensor assembly includes a fixing frame and a plurality of sensors;

[0013] The plurality of sensors are arranged on a side of the fixing frame facing the support frame, and the plurality of sensors are distributed at relative intervals.

[0014] Optionally, the fixing frame includes a base and a fixing portion, and the fixing portion is in an arc shape bent towards the ground.

[0015] Optionally, the fixing frame further includes a vertical driving mechanism, and the vertical driving mechanism is arranged between the base and the fixing portion to drive the fixing portion to move up and down.

[0016] Optionally, the vertical driving mechanism includes a fixed sleeve, a telescopic rod and a button arranged on an outer peripheral wall of the fixed sleeve;

[0017] The fixed sleeve is arranged on a side of the base facing the fixing portion, a first end of the telescopic rod is telescopically arranged in the fixed sleeve, and a second end of the telescopic rod is arranged on a side of the fixing portion facing the base;

[0018] When the button is in a pressed state, the telescopic rod moves in a direction close to or away from the fixed sleeve;

[0019] When the button is in a reset state, the telescopic rod is fixed in the fixed sleeve.

[0020] Optionally, the driving mechanism includes a motor and a spring device;

[0021] A first end of the motor is fixed to the support frame, and a second end of the motor is connected to the rolling member

[0022] A first end of the spring device is fixed to the support frame, and a second end of the spring device is connected to the rolling member; wherein,

[0023] The motor, the spring device and the rolling member are coaxially arranged.

[0024] Optionally, it further includes a limit ring, and the limit ring is arranged on the support frame; wherein,

[0025] The second end of the towing rope passes through the limiting ring and is connected to the leg fixing member.

[0026] Another aspect of the present invention provides a dance kicking training method, which uses the device described above for training. The training method includes:

[0027] The trainer lies in a supine position under the support frame, fixes the leg to be trained on the leg fixing member, and sets a preset angle that the leg kicks to.

[0028] The driving mechanism is turned on, and the driving mechanism drives the rolling member to roll in the first direction, so that the towing rope contracts, and the trainer quickly raises the leg under his own strength and the pulling force of the towing rope.

[0029] When the leg kicks to the preset angle, the sensor assembly controls the driving mechanism to stop rotating and be in a static state, and within the preset time, the leg is in a static state under the pulling force of the towing rope.

[0030] After exceeding the preset time, the driving mechanism drives the rolling member to roll in the second direction, so that the towing rope extends, and the trainer slowly lowers the leg under his own strength and the pulling force of the towing rope, completing one kicking training.

[0031] Optionally, the step of turning on the driving mechanism, where the driving mechanism drives the rolling member to roll in the first direction so that the towing rope contracts, and the trainer quickly raises the leg under his own strength and the pulling force of the towing rope, includes:

[0032] The torque of the driving mechanism is set to gradually increase, the rolling speed of the rolling member gradually increases, the pulling force of the towing rope gradually increases, and the leg force feeling of the trainer gradually increases to achieve quickly raising the leg.

[0033] Optionally, the step of after exceeding the preset time, the driving mechanism drives the rolling member to roll in the second direction so that the towing rope extends, and the trainer slowly lowers the leg under his own strength and the pulling force of the towing rope, includes:

[0034] The torque of the driving mechanism is set to gradually decrease, the rolling speed of the rolling member gradually decreases, the pulling force of the towing rope gradually decreases, and the leg force feeling of the trainer gradually decreases to achieve slowly lowering the leg.

[0035] The dance kicking training device and training method according to the embodiments of the present invention drive a rolling member to roll through a driving mechanism, so as to contract or extend a traction rope, and then lift or lower the leg; when the leg kicks to a preset angle, the sensor assembly controls the driving mechanism to be in a static state, so that the leg can stay at the preset angle, which can relax the muscle tissue of the thigh root and achieve the training effect of long and straight legs; the present invention standardizes the action requirements and training skills of ground kicking training through the dance kicking training device, improving the safety and autonomous training efficiency of kicking training. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 FIG. 6 is a schematic perspective view of a dance kicking training device according to an embodiment of the present invention;

[0037] Figure 2 FIG. 10 is a front view of a dance kicking training device according to another embodiment of the present invention;

[0038] Figure 3 FIG. 14 is a top view of a dance kicking training device according to another embodiment of the present invention;

[0039] Figure 4 FIG. 18 is a schematic structural view of a sensor assembly and a vertical driving mechanism according to another embodiment of the present invention;

[0040] Figure 5 FIG. 22 is a schematic flow chart of a dance kicking training method according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0041] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] As Figures 1 to 3 shown, one aspect of the present invention provides a dance kicking training device 100, and the device 100 includes a support frame 110, a rolling member 120, a traction rope 130, a leg fixing member 140, a driving mechanism 150, and a sensor assembly 160.

[0043] The rolling member 120 is disposed on the support frame 110. In this embodiment, the rolling member 120 is a roller, and it can also be other rolling members, which are not specifically limited in this embodiment.

[0044] The first end of the traction rope 130 is wound around the rolling member 120, and the second end of the traction rope 130 is connected to the leg fixing member 140. In this embodiment, the traction rope 130 can adopt a flexible rope, so that the stretching of the traction rope 130 on the leg is a flexible process.

[0045] In this embodiment, the leg fixing member 140 is a fixing ring. When the trainer is training, one of his legs is put into the fixing ring to perform corresponding kicking actions. The leg fixing member 140 can also be of other structures. The shape and size of the leg fixing member 140 are not specifically limited in this embodiment and can be selected according to actual needs. The leg fixing member 140 can be made of flexible materials, such as a leg binding ring made of cloth material or a leg binding ring made of rubber material, etc. Using flexible materials can keep the leg in a comfortable state during the kicking training process.

[0046] The driving mechanism 150 is arranged on the support frame 110 and connected to the rolling member 120, and is used to drive the rolling member 120 to roll, so that the traction rope 130 contracts or extends, and then the leg is lifted or lowered. That is to say, when the driving mechanism 150 drives the rolling member 120 to roll in the first direction (such as the clockwise direction), the traction rope 130 can be contracted, and then the leg of the trainer is driven to be lifted; when the driving mechanism 150 drives the rolling member 120 to roll in the second direction (such as the counterclockwise direction), the traction rope 130 can be extended, and then the leg of the trainer is driven to be lowered.

[0047] It should be noted that in this embodiment, both the rolling member 120 and the driving mechanism 150 are arranged at the upper position of the support frame 110, so as to provide sufficient space for the trainer's kicking training.

[0048] The sensor assembly 160 is arranged at a relatively spaced position from the support frame 110 and is electrically connected to the driving mechanism 150. The sensor assembly 160 is used to control the driving mechanism 150 to be in a stationary state when the leg kicks to a preset angle, so that the leg can stay at the preset angle for a period of time, generally staying for 1 to 2 seconds. When the leg stays at the preset angle for a period of time, the muscle tissue at the root of the thigh can be relaxed, achieving the training effect of making the legs slender and straight.

[0049] Specifically, in this embodiment, the trainer lies supine on the cushion 200 under the support frame 110, fixes the leg to be trained on the leg fixing member 140, and sets the speed at which the driving mechanism 150 drives the rolling member 120 to roll and the preset angle at which the leg is to be kicked according to the trainer's own conditions and training requirements. For example, if this training requires the leg to stay at 90° for a period of time during this training, the sensor component 160 corresponding to 90° needs to be turned on. After the preparation work is completed, the driving mechanism 150 is turned on. The driving mechanism 150 drives the rolling member 120 to roll, so that the traction rope 130 contracts or extends, and then the leg is lifted or lowered. When the leg kicks to the preset angle, assuming the leg kicks to 90°, the corresponding sensor component 160 senses the position of the leg. At this time, the sensor component 160 controls the driving mechanism 150 to be in a static state, so that the leg stays at the preset angle for a period of time, such as 1 to 2 seconds. The staying time of the leg can be controlled by the driving mechanism 150.

[0050] The dance kicking training device and training method according to the embodiment of the present invention drive the rolling member to roll through the driving mechanism, so that the traction rope contracts or extends, and then the leg is lifted or lowered; when the leg kicks to the preset angle, the sensor component controls the driving mechanism to be in a static state, so that the leg can stay at the preset angle, which can relax the muscle tissue of the root of the thigh and achieve the training effect of making the legs slender and straight. Standardize the action requirements and training skills of ground kicking training through the dance kicking training device, and improve the safety and autonomous training efficiency of kicking training.

[0051] Exemplarily, as Figure 1 shown, the sensor component 160 includes a fixing frame 161 and a plurality of sensors 162. The plurality of sensors 160 are arranged on one side of the fixing frame 161 facing the support frame 110, and the plurality of sensors 162 are relatively spaced apart. In this embodiment, according to the different angles to which the trainer needs to kick the leg, the plurality of sensors 160 are spaced apart on the fixing frame 161. The plurality of sensors 160 can be arranged at equal intervals on the fixing frame 161 or at unequal intervals on the fixing frame 161, and can be set according to the actual angle requirements.

[0052] It should be noted that when the sensor 160 adopts a photoelectric sensor, the photoelectric sensor can emit corresponding light. When the trainer's leg kicks to the preset angle, it will touch the light emitted by the photoelectric sensor at the corresponding angle. At this time, after the photoelectric sensor receives the signal, it controls the driving mechanism 150 to be in a static state.

[0053] Exemplarily, as Figure 1 and Figure 4As shown, the fixing bracket 161 includes a base 161a and a fixing portion 161b, and the fixing portion 161b is an arc bent towards the ground. In this embodiment, the fixing portion 161b is set as an arc bent towards the ground, and corresponding sensors 160 can be arranged on the fixing portion 161b according to the angle of kicking. Since the fixing portion 161b is arc-shaped, the sensors 160 can be arranged within the range of 0 to 180. In this way, on the one hand, the corresponding kicking angles can be set according to the trainer's own conditions, and on the other hand, the trainer can perform kicking training step by step. For example, the trainer can perform kicking training in sequence from angles of 80°, 90°, and 100°, reducing the risk of sports injuries, improving the standardization of training, and improving training efficiency.

[0054] Exemplarily, as Figure 4 As shown, the fixing bracket 160 further includes a vertical driving mechanism 163, and the vertical driving mechanism 163 is arranged between the base 161a and the fixing portion 161b to drive the fixing portion 161b to move up and down. That is to say, the height of the fixing bracket 160 can be adjusted by the up and down movement of the fixing portion 161b.

[0055] In this embodiment, the height of the fixing bracket 160 can be adjusted, and the height of the fixing bracket 160 can be adjusted according to the needs of trainers with different heights and different leg lengths, so that different trainers can kick their legs to a preset angle and stay for a period of time to achieve the effect of stretching the legs. That is to say, by driving the fixing portion 161b to move up and down through the vertical driving mechanism 163 to adjust the height of the fixing bracket 160, different trainers can be satisfied for kicking training.

[0056] Exemplarily, as Figure 4 As shown, specifically, in this embodiment, the vertical driving mechanism 163 includes a fixed sleeve 163a, a telescopic rod 163b, and a button 163c arranged on the outer peripheral wall of the fixed sleeve.

[0057] The fixed sleeve 163a is arranged on the side of the base 161a facing the fixing portion 161b, the first end of the telescopic rod 163b is telescopically arranged in the fixed sleeve 163a, and the second end of the telescopic rod 163b is arranged on the side of the fixing portion 161b facing the base 161a.

[0058] When the button 163c is in the pressed state, the telescopic rod 163b moves in a direction close to or away from the fixed sleeve 163a. When the button 163c is in the reset state, the telescopic rod 163b is fixed in the fixed sleeve 163a.

[0059] In this embodiment, the vertical driving mechanism 163 drives the lifting of the fixing part 161b through the combination of the fixed sleeve 163a, the telescopic rod 163b, and the button 163c. Of course, other forms of vertical driving mechanisms 163 can also be used to drive the lifting of the fixing part 161b, and this embodiment does not make any limitations.

[0060] As Figure 1 and Figure 3 shown, the driving mechanism 150 includes a motor 151 and a spring device 152. The first end of the motor 151 is fixed to the support frame 110, and the second end of the motor 151 is connected to the rolling member 120. The first end of the spring device 152 is fixed to the support frame 110, and the second end of the spring device 152 is connected to the rolling member 120. Among them, the motor 151, the spring device 152, and the rolling member 120 are coaxially arranged. That is to say, in this embodiment, the rolling member 120 is arranged between the motor 151 and the spring device 152, and the motor 151 and the spring device 152 can simultaneously drive the rolling member 120 to rotate, realizing the rotational contraction or extension of the traction rope 130.

[0061] Specifically, the spring device 152 mainly stores energy for the spring device 152 during the operation of the motor 151, and can provide a reverse force for the rolling member 120 when the motor 151 does not intervene in the work. That is to say, the spring device 152 provides a guarantee for the rotation of the rolling member 120. If the motor 152 does not work, the spring device 152 can continue to provide force for the rolling of the rolling member 120. Simply put, the spring device 152 stores energy when the motor 151 operates, and releases kinetic energy when the motor 151 does not work.

[0062] In this embodiment, the motor 151 uses a damping motor. When the leg kicks to a preset angle, the sensor 162 quickly locks the brake of the damping motor, that is to say, the damping motor is in a braking state.

[0063] Exemplarily, as Figure 3 shown, the device 100 further includes a limit ring 170, and the limit ring 170 is arranged on the support frame 110. Among them, the second end of the traction rope 130 passes through the limit ring 170 and is connected to the leg fixing member 140. The limit ring 170 can limit the movement range of the traction rope 130, and can ensure that the traction rope 130 moves left and right, front and back within the limit ring 170.

[0064] As Figure 5 shown, on the other hand, the present invention provides a dance kicking training method S100, which uses the aforementioned dance kicking training device 100 for training. The training method S100 includes:

[0065] S110. The trainer lies in a supine position under the support frame, fixes the leg to be trained on the leg fixing member, and sets a preset angle for the leg to kick to.

[0066] Specifically, the trainer lies in a supine position under the support frame 110, fixes the leg to be trained on the leg fixing member 140, and sets a preset angle for the leg to kick to. That is, the sensor 162 at the corresponding preset angle on the fixing frame 161 is turned on.

[0067] S120. Turn on the driving mechanism. The driving mechanism drives the rolling member to rotate in the first direction so that the traction rope contracts, and the trainer quickly raises the leg under their own strength and the pulling force of the traction rope.

[0068] Specifically, when the driving mechanism includes a motor 151 and a spring device 152, turn on the motor 151. The motor 151 drives the roller member 120 to roll in the first direction (such as the clockwise direction). The rolling of the rolling member 120 drives the traction rope 130 to contract. At this time, the trainer quickly raises the leg under their own strength and the pulling force of the traction rope 130.

[0069] More specifically, after turning on the motor 151, the torque of the motor 151 is set to gradually increase, the rolling speed of the rolling member 120 gradually increases, the pulling force of the traction rope 130 gradually increases, and the leg force feeling of the trainer gradually increases to achieve quickly raising the leg.

[0070] It should be noted that in the process of quickly raising the leg, the pulling force of the traction rope 130 during the quick kicking process can be controlled by setting the torque of the motor 151, so that the process of quickly raising the leg is a flexible process.

[0071] S130. When the leg kicks to the preset angle, the sensor assembly controls the driving mechanism to stop rotating and be in a static state. The leg remains in a static state under the pulling force of the traction rope within a preset time.

[0072] Specifically, as shown in the figure, assume the preset angle is 90°. When the leg kicks to 90°, the sensor 162 at the 90° position quickly locks the motor 151 to brake when it senses the leg position signal, so that the motor 151 is in a braking state, that is, the motor 151 is in a static state. At this time, the trainer's leg will remain static at 90° for 1 - 2 seconds.

[0073] S140. After exceeding the preset time, the driving mechanism drives the rolling member to roll in the second direction so that the traction rope extends, and the trainer slowly lowers the leg under their own strength and the pulling force of the traction rope to complete one kicking training.

[0074] Specifically, after the trainer's leg remains stationary at a preset angle for 1 to 2 seconds, the motor 151 resumes operation. The motor 151 drives the rolling member 120 to roll in the second direction (e.g., counterclockwise) to extend the traction rope 130. However, there is still a pulling force. At this time, the trainer slowly lowers the leg under their own strength and the pulling force of the traction rope 130 to complete one kick training.

[0075] More specifically, when the motor 151 resumes operation, the torque of the motor 151 is set to gradually decrease, the rolling speed of the rolling member 120 gradually slows down, the pulling force of the traction rope 130 gradually weakens, and the leg force feeling of the trainer gradually weakens to achieve the slow lowering of the leg.

[0076] It should be noted that the process of slowly lowering the leg can be achieved by setting the torque of the motor 151, making the pulling force of the traction rope 130 controllable during the process of slowly lowering the leg, and thus making the process of slowly lowering the leg a flexible process.

[0077] The dance kick training method of the present invention can, with the assistance of the dance kick training device, enable the trainer to perform a fast kick during kicking, then keep the leg stationary at a preset angle, and finally achieve the process of slowly lowering the leg. The kick training method of the present invention can relax the muscle tissue of the thigh root, achieve the training effect of long and straight legs, standardize the movement requirements and training skills of ground kick training through the dance kick training device, and improve the safety and autonomous training efficiency of kick training.

[0078] It can be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principle of the present invention. However, the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also regarded as the protection scope of the present invention.

Claims

1. A dance kicking training device, characterized in that, the device comprises: a support frame; a rolling member, disposed on the support frame; a traction rope, the first end of which is wound around the rolling member, and the second end of which is connected to a leg fixing member; a driving mechanism, disposed on the support frame and connected to the rolling member, for driving the rolling member to roll, so that the traction rope contracts or extends, thereby lifting or lowering the leg; a sensor assembly, disposed at a relative interval with respect to the support frame and electrically connected to the driving mechanism, for controlling the driving mechanism to be in a stationary state when the leg kicks to a preset angle; wherein, the sensor assembly includes a fixing frame and a plurality of sensors; the plurality of sensors are disposed on a side of the fixing frame facing the support frame, and the plurality of sensors are relatively spaced apart; the driving mechanism includes a motor and a spring device; the first end of the motor is fixed to the support frame, and the second end of the motor is connected to the rolling member; the first end of the spring device is fixed to the support frame, and the second end of the spring device is connected to the rolling member; wherein, the motor, the spring device and the rolling member are coaxially disposed.

2. The device according to claim 1, characterized in that, the fixing frame includes a base and a fixing portion, and the fixing portion is an arc-shaped bent towards the ground.

3. The device according to claim 2, characterized in that, the fixing frame further includes a vertical driving mechanism, and the vertical driving mechanism is disposed between the base and the fixing portion to drive the fixing portion to lift and lower.

4. The device according to claim 3, characterized in that, the vertical driving mechanism includes a fixed sleeve, a telescopic rod and a button disposed on an outer peripheral wall of the fixed sleeve; the fixed sleeve is disposed on a side of the base facing the fixing portion, the first end of the telescopic rod is telescopically disposed in the fixed sleeve, and the second end of the telescopic rod is disposed on a side of the fixing portion facing the base; when the button is in a pressed state, the telescopic rod moves in a direction close to or away from the fixed sleeve; when the button is in a reset state, the telescopic rod is fixed in the fixed sleeve.

5. The device according to any one of claims 1 to 4, characterized in that, further includes a limit ring, and the limit ring is disposed on the support frame; wherein, the second end of the traction rope passes through the limit ring and is connected to the leg fixing member.

6. A dance kicking training method, characterized in that, using the device according to any one of claims 1 to 5 for training, the training method includes: the trainer lies on his back below the support frame, fixes the leg to be trained on the leg fixing member, and sets a preset angle for the leg to kick; turn on the driving mechanism, and the driving mechanism drives the rolling member to roll in a first direction, so that the traction rope contracts, and the trainer quickly lifts the leg under his own strength and the pulling force of the traction rope; when the leg kicks to the preset angle, the sensor assembly controls the driving mechanism to stop rotating and be in a stationary state, and within a preset time, the leg is in a stationary state under the pulling force of the traction rope; After exceeding the preset time, the driving mechanism drives the rolling member to roll in the second direction so as to extend the traction rope, and the trainer slowly lowers the leg under his own strength and the pulling force of the traction rope to complete a kicking training.

7. The method according to claim 6, wherein, turning on the driving mechanism, the driving mechanism drives the rolling member to roll in the first direction so as to contract the traction rope, and the trainer quickly raises the leg under his own strength and the pulling force of the traction rope, including: setting the torque of the driving mechanism to gradually increase, the rolling speed of the rolling member to gradually increase, the pulling force of the traction rope to gradually increase, and the leg force feeling of the trainer to gradually increase, so as to quickly raise the leg.

8. The method according to claim 6, wherein, after exceeding the preset time, the driving mechanism drives the rolling member to roll in the second direction so as to extend the traction rope, and the trainer slowly lowers the leg under his own strength and the pulling force of the traction rope, including: setting the torque of the driving mechanism to gradually decrease, the rolling speed of the rolling member to gradually decrease, the pulling force of the traction rope to gradually decrease, and the leg force feeling of the trainer to gradually decrease, so as to slowly lower the leg.

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