CN103657042B - The device of the training of Fixed swivel force at the core and information feed back monitoring under superfine length - Google Patents

Abstract

The invention discloses a device for core strength training and information feedback monitoring of super isometric fixed rotation body, which relates to a strength training and information feedback monitoring device. The present invention solves the problem that there is no training device for core stabilization strength training and realizing muscle "super isometric contraction" at present, and the problem that motion parameters cannot be quantified and monitored. The arc surface of the balance base is rotationally connected with the base, the chassis is fixed on the upper end surface of the balance base, the pedal and the chassis are connected by a vertical rotating shaft, the upper end of the rotating shaft is fixedly connected with the lower end surface of the pedal, and the rotating shaft The lower end of the turret is rotatably connected to the chassis, the bushing is set on the rotating shaft at the lower end of the pedal, the rotation resistance device is installed between the rotating shaft and the bushing, the lower end of the turret is fixedly connected with the outer end surface of the bushing, and the turret Two rotating handles are arranged on the upper end; the signal output ends of the two distance measuring sensors are respectively connected to the first distance signal input end and the second distance signal input end of the control circuit. The invention is used for turning strength training.

Description

Device for core strength training and information feedback monitoring of super isometric fixed rotation

technical field

The invention relates to a human body physical strength training and monitoring device, in particular to a device for core strength training and information feedback monitoring of super isometric fixed rotation.

Background technique

The main function of core strength training is to stabilize the athlete's spine and pelvis, maintain correct body posture, stabilize the center of gravity, improve body control and balance, and increase energy output from core muscles to limbs and other muscles during exercise.

Core strength emphasizes that the force of the movement should rely on the center of the body. The force of the extremities starts from the force of the trunk and waist, which can extend the moment arm, increase the torque, and obtain greater strength. When the athlete is exercising, the waist to the hip The position of the head is the center of the whole body, which acts as a link for the movement of the whole body. The more developed the core strength of the athlete, the more coordinated they will be when doing movements, and the better the movement effect will be. Core strength exercises emphasize resistance exercises under unbalanced conditions, which can make more small muscle groups special It is the auxiliary muscles around the joints that participate in sports, improving the ability of athletes to stabilize joints and control the center of gravity during sports.

Lower fixed rotation core strength training refers to: When the athlete performs the rotation movement, the lower body is fixed, that is, the waist, abdomen, and hip muscle groups are fixed at the lower end to complete the rotation movement.

Modern high-level scientific training pays attention to the integration of strength training methods close to special movements, that is, the optimized design of special strength training equipment combined with the latest training hotspot - core strength training, using athlete movement information to monitor the technical process of athletes' movements, and then improve athletes. Super isometric contraction refers to a compound contraction form in which the muscles are first eccentrically elongated and then concentrically contracted, with fast movement transitions. The production, storage and reutilization of elastic energy and the reflex regulation of the central nervous system are the main reasons why the muscle "super isometric contraction" is both economical and efficient. In the process of body rotation training, the above-mentioned principle of muscle "super isometric contraction" can also be used for training. At present, there is no special training device for core strength training of body rotation and the realization of muscle "super isometric contraction", let alone information feedback .

Contents of the invention

The present invention solves the problem that there is no special training device for stable core strength training and realizing muscle "ultra-isometric contraction" at present, and the problem that information feedback cannot be provided, and further provides a super-isometric fixed-rotation core strength training and information Feedback monitoring device.

The technical scheme adopted by the present invention to solve the above-mentioned technical problems is: the device for core strength training and information feedback monitoring of the super-isometric lower fixed swivel body of the present invention includes a base, a chassis, a balance seat, a turret, a fixed shaft, a shaft sleeve, a rotating Resistors, pedals, rotating and stretching units, information feedback components and two pressure sensors, the base is provided with a first groove, the bottom surface of the balance base is an arc surface with a radius of R, the arc surface of the balance base and the base The chassis is fixed on the upper end surface of the balance seat, the pedal is arranged directly above the chassis, the pedal and the chassis are connected by a vertical fixed shaft, and the upper end of the fixed shaft is movably connected with the lower end surface of the pedal, fixed The lower end of the shaft is fixedly connected with the chassis, the shaft sleeve is set on the fixed shaft at the lower end of the pedal, the rotation resistance device is installed between the fixed shaft and the shaft sleeve, the lower end of the turret is fixedly connected with the outer end surface of the shaft sleeve, and the turret Two turning handles are arranged on the upper end, and a pressure sensor is arranged on each turning handle;

The information feedback assembly includes a torque feedback unit, two distance measuring sensors, a control circuit and a display, and the two distance measuring sensors are respectively located on both sides of the arc surface of the balance seat; the signal output ends of the two distance measuring sensors are respectively connected to the control circuit The first distance signal input terminal and the second distance signal input terminal, the display drive signal output terminal of the control circuit is connected to the signal input terminal of the display; the bottom surface of the pedal is provided with a second groove, and the control circuit is arranged on in the second groove of the pedal;

A control module implemented by software is embedded in the control circuit, and the control module includes the following units:

The data acquisition unit is used to simultaneously collect the first distance signal input from the first distance signal input terminal and the second distance signal input from the second distance signal input terminal at each sampling time interval;

The comparison unit subtracts the second distance signal from the received first distance signal to obtain a signal difference;

The display unit is used to convert the signal difference into digital information or graphic information and send it to the display;

The torque feedback unit includes a torque sensor, a torque amplifier and a voltage-driven display, and the torque sensor, the torque amplifier and the voltage-driven display are connected in series in sequence;

The rotating stretching unit includes a motor, a driving gear, a driven gear, a motor lifting device, two limit pins and two limit switches, and the two limit pins are fixedly installed on the lower end surface of the pedal, and the two limit pins are about The fixed shaft is symmetrically arranged left and right, and the maximum rotation angle of the turret is limited by two limit pins to 190°. Each limit pin is provided with a limit switch. The motor is set on the chassis through the motor lifting device, and the driving gear is fixed on the On the output shaft of the motor, the driven gear is fixedly sleeved on the shaft sleeve, and the driven gear meshes with the driving gear.

Compared with the prior art, the present invention has the following effects:

1. The device for core strength training and information feedback monitoring of super isometric lower fixed rotation of the present invention can enable athletes to overcome the unstable state and maintain the correct posture of exerting force. Activate more muscle fibers in the core to participate in stabilizing body balance and exerting force in movements;

2. During the training process of the present invention, the pressure sensor can display the force-velocity curve, and quantify and monitor the entire movement process in real time; it can display the balance state of the athlete during training in real time, quantify and monitor the exercise parameters, and then let the athlete know the state of their training , and then adjust its posture in real time, which is conducive to improving the training effect of athletes;

3. The quantitative information of the present invention is sent to a remote computer through a serial communication port or a wireless communication circuit to read and identify information, and then can be used to analyze the training state of the athlete;

4. The present invention has a simple structure and is convenient for manufacture;

5. The rotation resistance device of the present invention can measure the resistance between the rotating shaft and the axle sleeve when the athlete stands on the pedal at any time and can know the size of the athlete's overcoming resistance. The torque feedback unit can measure the amount of force the athlete exerts when turning. Speed curve, and then effectively monitor the athletes' sports technical process in real time, and then provide guidance for coaches;

6. In order to increase the training difficulty and training effect, the present invention conducts moderate centrifugal elongation on the human waist and hip muscles through the mutual cooperation of the motor, driving gear, driven gear, limit pin and multiple limit switches, and realizes Muscle "hyperisometric contraction" training.

Description of drawings

Fig. 1 is a front view of the overall structure of the device for core strength training and information feedback monitoring of super isometric lower fixed rotation of the present invention, Fig. 2 is a left view of Fig. 1, and Fig. 3 is a bottom view of the chassis and balance seat in the specific embodiment Figure 4 is a schematic diagram of the electrical part of the torque feedback unit in the information feedback component; Figure 5 is a schematic diagram of the electrical part of the information feedback component except the torque feedback unit; Figure 6 is a schematic diagram of the electrical part with the specific structure of the control circuit in the information feedback component Partial schematic diagram; Fig. 7 is a front view of the pedal in the first embodiment; Fig. 8 is a bottom view of the pedal in the first embodiment.

detailed description.

Specific Embodiment 1: In conjunction with Fig. 1-Fig. 8, the device for core strength training and information feedback monitoring of super isometric lower fixed swivel in this embodiment includes a base 8, a chassis 1, a balance seat 2, a turret 5, and a fixed shaft 15. Axle sleeve 16, rotation resistance device 17, pedal 18, rotation stretching unit, information feedback assembly and two pressure sensors 20, the base 8 is provided with a first groove 8-1, the bottom surface of the balance seat 2 is The arc surface with a radius of R, the arc surface of the balance base 2 is connected to the base 8 in rotation, the chassis 1 is fixed on the upper end surface of the balance base 2, the pedal 18 is arranged directly above the chassis 1, and the gap between the pedal 18 and the chassis 1 Connected by a vertical fixed shaft 15, and the upper end of the fixed shaft 15 is movably connected with the lower end surface of the pedal 18, the lower end of the fixed shaft 15 is fixedly connected with the chassis 1, and the shaft sleeve 16 is sleeved on the fixed shaft 15 at the lower end of the pedal 18 Above, the rotation resistance device 17 is installed between the fixed shaft 15 and the shaft sleeve 16, the lower end of the turret 5 is fixedly connected with the outer end surface of the shaft sleeve 16, and the upper end of the turret 5 is provided with two rotating handles 5-1, each A pressure sensor 20 is arranged on the turning handle 5-1;

The information feedback assembly includes a torque feedback unit, two distance measuring sensors 3, a control circuit 4 and a display 6, and the two distance measuring sensors 3 are respectively located on both sides of the arc surface of the balance seat 2; the signals of the two distance measuring sensors 3 The output end is respectively connected to the first distance signal input end and the second distance signal input end of the control circuit 4, and the display drive signal output end of the control circuit 4 is connected to the signal input end of the display 6; There is a second groove, and the control circuit 4 is arranged in the second groove of the pedal 18;

A control module implemented by software is embedded in the control circuit 4, and the control module includes the following units:

The data acquisition unit is used to simultaneously collect the first distance signal input from the first distance signal input terminal and the second distance signal input from the second distance signal input terminal at each sampling time interval;

The comparison unit subtracts the second distance signal from the received first distance signal to obtain a signal difference;

The display unit is used to convert the signal difference into digital information or graphic information and send it to the display;

The torque feedback unit includes a torque sensor 20, a torque amplifier 21 and a voltage-driven display 22, and the torque sensor 20, the torque amplifier 21 and the voltage-driven display 22 are sequentially connected in series;

The rotating stretching unit includes a motor 31, a driving gear 32, a driven gear 33, a motor lifting device 36, two limit pins 34 and two limit switches 35, and the two limit pins 34 are fixedly installed on the lower surface of the pedal 18 Above, two limit pins 34 are symmetrically arranged left and right about the fixed shaft 15, and the maximum rotation angle of the turret 5 limited by the two limit pins 34 is 190°, and each limit pin 34 is provided with a limit switch 35, and the motor 31 is arranged on the chassis 1 by the motor lifting device 36, the driving gear 32 is fixedly installed on the output shaft of the motor 31, the driven gear 33 is fixedly sleeved on the axle sleeve 16, and the driven gear 33 and the driving gear 32 are meshed.

In this embodiment, the output of the ranging sensor is a digital signal.

The sampling time is any time parameter between 0.5 seconds and 3 seconds.

When the balance training device with information feedback function described in this embodiment is used in practice, the balance seat 2 is placed in a flat area, and the athlete stands on the pedal 1 with both feet. After the training starts, when the pedal 1 tilts, The signals output by the two distance measuring sensors 3 are different, and the control circuit obtains the inclination of the pedal by collecting and comparing the two distance signals, and displays and outputs the inclination in a digital or graphic manner through the display.

When displayed in numerical form, the signal difference can be displayed with a plus or minus sign, with a larger number indicating a greater slope.

When displayed in a graphic form, an overall image of the balance training device may be displayed, and then the tilting state of the balance training device may be displayed according to the inclination. It is also possible to use a simple image, for example, to only display the balance state of the pedals.

When the athlete stands on the pedal 18 and performs rotation training, set: the starting turret 5 points to the A point, that is, the frontal position, and performs the rotation exercise. When the turret 5 rotates counterclockwise, it points to the D position, and this position is close to the waist rotation. Physiological limit, now open the motor lifting device 36 to drive and control the motor 31 to move upwards, so that the driving gear 32 is meshed with the driven gear 33, and the motor 31 is turned on simultaneously, and the driven gear 33 drives the driving gear 32 to rotate. When the turret 5 rotates more than When the D orientation is 5°, the lower end of the turret 5 touches the limit switch 35 on the D orientation limit pin 34, and the motor 31 is controlled by the limit switch 35 on the D orientation limit pin 34 to stop, and the motor lifting device 36 is used to drive The motor 31 is controlled to move downward, so that the driving gear 32 is separated from the driven gear 33; in the same way, it rotates in the opposite direction, and reciprocates in this way to realize the core strength exercise of super isometric rotation.

The pedal 18 of the present embodiment is provided with a marking arrow, and is provided with four markings A, B, C and D in a circular array at the same time, for athletes to understand the angle of rotation.

Specific embodiment two: In conjunction with Fig. 1 and Fig. 2 description, the turret 5 described in this embodiment includes a horizontal upper bracket 5-2, a vertical bracket 5-3 and a horizontal lower bracket, and one end of the horizontal lower bracket is fixed on the shaft sleeve 16 On the outer end face of the horizontal lower bracket, the other end of the horizontal lower bracket is fixedly connected with the lower end of the vertical bracket 5-3, the middle part of the horizontal upper bracket 5-2 is fixedly connected with the upper end of the vertical bracket 5-3, and the horizontal upper bracket 5-2 is fixedly connected with the upper end of the vertical bracket 5-3. Both ends are respectively provided with a turning handle 5-1. Designed in this way, it is convenient for athletes to safely stand on the pedal 18 during training, to provide convenience for athletes, and to rotate with the athlete's turning force when turning. Other compositions and connections are the same as in the first embodiment.

Specific embodiment three: In this embodiment, the horizontal support 5-2 is an arc-shaped support. Such design makes it convenient for athletes to grasp the two rotating handles 5-1. Other compositions and connections are the same as those in the second embodiment.

Embodiment 4: This embodiment is described in conjunction with FIG. 2 . The bottom surface of the first groove 8-1 of this embodiment is an arc surface, and the radius of the arc surface is greater than the radius of the balance seat 2. The chord height of the arc surface is between 0.2 and 0.6 of the height of the balance base 2 . With such an arrangement, it is easier to ensure that the balance base 2 is located in the middle of the groove 81, so that its left and right swings have the same amplitude. Other compositions and connections are the same as those in Embodiment 1, 2 or 3.

Embodiment 5: This embodiment is described in conjunction with FIG. 2 . The device for core strength training and information feedback monitoring of super isometric lower fixed rotation in this embodiment also includes two limiting devices 10, and the two limiting devices 10 are arranged symmetrically. On the base 8, each limiting device 10 includes a slide rail, a top post 14, a stop bar 13 and a plurality of pairs of limit stops 12; the slide rail is fixedly connected to the upper surface of the base; the The top column 14 is fixed on the slider of the slide rail; multiple pairs of limit stops 12 are arranged at equal intervals along the sliding direction on both sides of the slide rail, and each pair of limit stops 12 is provided with a retaining rod fixing groove , the retaining rod fixing slot is used to place the retaining rod 13. In this way, the position-limiting device 10 in this embodiment adopts the way of slideway to realize the adjustment of spacing, and the function of fixing the position is realized by arranging limit stops on the side of the slideway, which is convenient and fast to operate, and makes the position-limiting device 10 The height remains unchanged, which can ensure the consistency of the maximum angle that the pedal 18 can swing left and right defined by each gear; at the same time, two limit devices 10 are set to facilitate beginners when practicing rotation. The swing range is appropriate. Other compositions and connections are the same as in Embodiment 4.

Specific embodiment six: This embodiment is described in conjunction with Fig. 2. The device for super isometric lower fixed rotation core strength training and information feedback monitoring of this embodiment also includes two-foot limiting projections 19, and the two-foot limiting projections 19 is arranged on the pedal 18. Such setting is convenient for athletes to use. Other compositions and connections are the same as those in Embodiment 1, 2, 3 or 5.

Embodiment 7: This embodiment is described in conjunction with FIG. 6. The control circuit 4 of this embodiment includes two signal conditioning circuits 41, an A/D conversion circuit 42 and a controller 43; the control module is embedded in the controller 43, The signal input terminals of the two signal conditioning circuits 41 are respectively the first distance signal input terminal and the second distance signal input terminal of the control circuit 4, and the signal output terminals of the two signal conditioning circuits 41 are respectively connected to the A/D conversion Two analog signal input ends of the circuit 42, the digital signal output end of the A/D conversion circuit 42 is connected to the signal acquisition signal input end of the controller 43, and the A/D conversion control signal output end of the controller 43 is connected to A The conversion control signal input end of the /D conversion circuit 42 and the display drive signal output end of the controller are connected to the signal input end of the display 6 . So set, in this embodiment, the output of the two ranging sensors is an analog signal, and the analog signal is sent to the A/D conversion circuit after being processed by the signal conditioning circuit, and after the A/D conversion circuit converts the analog signal into a digital signal sent to the controller. The controller 43 in this embodiment can be realized by a single-chip microcomputer. Information feedback is more timely and accurate. Other compositions and connections are the same as those in Embodiment 6.

Embodiment 8: This embodiment is described in conjunction with FIG. 5 and FIG. 6. The device for core strength training and information feedback monitoring of super isometric lower fixed rotation in this embodiment also includes a keyboard, and the signal output end of the keyboard is connected to the control circuit. 4 keyboard signal input terminal; the control module also includes the following units:

A key information acquisition unit, configured to receive key information input by the keyboard;

The button information decoding unit is used to judge the content of the obtained button information. When the button information is sampling time information, the sampling time information is used as the sampling time information; when the button information is output digital display information, a digital display command is sent to the display unit. ; When the button information is image display information, send a graphic display command to the display unit;

The display unit sends corresponding display information to the display 6 according to the received command.

Such setting is convenient for athletes to use. Other compositions and connections are the same as those in Embodiment 7.

Specific Embodiment Nine: This embodiment is described in conjunction with FIG. 6. The control circuit 4 of this embodiment also includes two zeroing circuits 44, and the two zeroing circuits 44 correspond to two signal conditioning circuits 41, each The signal output end of the zero adjustment circuit 44 is connected to the zero adjustment signal input end of a signal conditioning circuit 41 . With this setting, a keyboard is added in this embodiment, which can realize the setting of parameters, for example, the sampling time of the sampling interval can be set, or the type of the displayed signal can be set to be digital or graphic, etc. Other compositions and connections are the same as those in the seventh or eighth specific embodiment.

working principle:

In order to overcome the unstable state and maintain the correct force posture, athletes need to cooperate with the waist, pelvis, hip joints and lower limbs to mobilize, recruit and activate more muscle fibers in the core parts to participate in and stabilize the body balance and force of movements;

When performing super-long fixed-rotation core strength training and quantitative monitoring, the athletes stand on the lower-fixed-rotation core strength training device with quantitative monitoring function in an unstable state, and combine the optimized design approach throwing, wrestling , basketball and other special forces, hold the pressure sensor 20 on the turning handle 5-1 with your hands, and adjust the resistance of the rotating resistance device 17, and then perform turning exercises. When the athlete turns, the balance seat 2 is in the first position Swing in the groove 8-1; at this time, the information feedback monitoring component starts to work, and the swing amplitude of the athlete can be measured for quantitative processing of information, and the balance state of the athlete's body can be measured and quantitatively monitored during exercise. Speed curve, real-time information feedback monitoring for the whole action process;

When lowering the fixed rotation, it is assumed that the starting turret 5 points to point A, which is the frontal position, to perform rotation exercises. When the turret 5 rotates counterclockwise and points to the D position, this position is close to the physiological limit of the waist rotation. At this time, turn on the motor The lifting device 36 drives and controls the motor 31 to move upward, so that the driving gear 32 meshes with the driven gear 33, and at the same time, the motor 31 is turned on, and the driven gear 33 drives the driving gear 32 to rotate. The lower end of the frame 5 touches the limit switch 35 on the D orientation limit pin 34, the motor 31 is controlled to stop by the limit switch 35 on the D orientation limit pin 34, and the motor 31 is driven to move downward by using the motor lifting device 36. Thereby, the driving gear 32 is separated from the driven gear 33; similarly, it rotates in the opposite direction, and reciprocates like this to realize super isometric rotation core strength exercises.

Claims (9)

1. A device for core strength training and information feedback monitoring of a super isometric lower fixed swivel, characterized in that: it comprises a base (8), a chassis (1), a balance seat (2), a turret (5), a fixed Shaft (15), shaft sleeve (16), rotation resistance device (17), pedal (18), rotation stretching unit, information feedback assembly and two pressure sensors (20), the base (8) is provided with the first concave Groove (8-1), the bottom surface of the balance seat (2) is an arc surface with a radius of R, the arc surface of the balance seat (2) is connected to the base (8) in rotation, and the chassis (1) is fixed on the balance seat On the upper end face of (2), the pedal (18) is arranged on the top of the chassis (1), and the fixed shaft (15) arranged vertically between the pedal (18) and the chassis (1) is connected, and the fixed shaft (15 ) is fixedly connected with the lower end surface of the pedal (18), the lower end of the fixed shaft (15) is fixedly connected with the chassis (1), and the shaft sleeve (16) is sleeved on the fixed shaft (15) at the lower end of the pedal (18) , the rotation resistance device (17) is installed between the fixed shaft (15) and the shaft sleeve (16), the lower end of the turret (5) is fixedly connected with the outer end surface of the shaft sleeve (16), and the upper end of the turret (5) is set There are two turning handles (5-1), and each turning handle (5-1) is provided with a pressure sensor (20); The information feedback assembly includes a torque feedback unit, two distance measuring sensors (3), a control circuit (4) and a display (6). side; the signal output terminals of the two ranging sensors (3) are respectively connected to the first distance signal input terminal and the second distance signal input terminal of the control circuit (4), and the display drive signal output terminal of the control circuit (4) is connected to The signal input terminal of the display (6); the bottom end surface of the pedal (18) is provided with a second groove, and the control circuit (4) is arranged in the second groove of the pedal (18); A control module implemented by software is embedded in the control circuit (4), and the control module includes the following units: The data acquisition unit is used to simultaneously collect the first distance signal input from the first distance signal input terminal and the second distance signal input from the second distance signal input terminal at each sampling time interval; The comparison unit subtracts the second distance signal from the received first distance signal to obtain a signal difference; The display unit is used to convert the signal difference into digital information or graphic information and send it to the display; The torque feedback unit includes a torque sensor (20), a torque amplifier (21) and a voltage-driven display (22), and the torque sensor (20), the torque amplifier (21) and the voltage-driven display (22) are connected in series in sequence; Rotating stretching unit comprises motor (31), driving gear (32), driven gear (33), motor elevating device (36), two limit pins (34) and two limit switches (35), two The limit pin (34) is fixedly installed on the lower end surface of the pedal (18), and the two limit pins (34) are arranged symmetrically about the fixed shaft (15), and the two limit pins (34) limit the turret (5) The maximum rotation angle is 190 °, each limit pin (34) is provided with a limit switch (35), the motor (31) is arranged on the chassis (1) through the motor lifting device (36), and the driving gear (32 ) is fixedly installed on the output shaft of the motor (31), the driven gear (33) is fixedly sleeved on the axle sleeve (16), and the driven gear (33) is meshed with the driving gear (32). 2. The device for core strength training and information feedback monitoring of super isometric lower fixed rotation according to claim 1, characterized in that: the turret (5) comprises a horizontal support (5-2), a vertical support (5-3) and the horizontal lower bracket, one end of the horizontal lower bracket is fixed on the outer end face of the axle sleeve (16), the other end of the horizontal lower bracket is fixedly connected with the lower end of the vertical bracket (5-3), and the horizontal upper bracket The middle part of (5-2) is fixedly connected with the upper end of vertical support (5-3), and the two ends of horizontal upper support (5-2) are respectively provided with a rotating handle (5-1). 3. The device for core strength training and information feedback monitoring of super isometric lower fixed rotation according to claim 2, characterized in that: the horizontal upper support (5-2) is an arc-shaped support. 4. The device for core strength training and information feedback monitoring of super isometric lower fixed rotation according to claim 1, 2 or 3, characterized in that: the bottom surface of the first groove (8-1) is an arc surface , and the radius of the arc surface is greater than the radius of the balance seat (2), and the chord height of the arc surface is between 0.2 and 0.6 of the height of the balance seat (2). 5. The device for super isometric fixed-rotation core strength training and information feedback monitoring according to claim 4, characterized in that: the super-isometric fixed-rotation core strength training and information feedback monitoring device also includes Two limit devices (10), the two limit devices (10) are symmetrically arranged on the base (8), each limit device (10) includes a slide rail, a top post (14), a Stop bar (13) and many pairs of limit stops (12); said slide rail is fixedly connected with the upper surface of the base; said push post (14) is fixed on the slide block of slide rail; on both sides of slide rail A plurality of pairs of limit stops (12) are provided at equal intervals along the sliding direction, and each pair of limit stops (12) is provided with a retaining rod fixing groove, and the retaining rod fixing groove is used to place the retaining rod (13) . 6. According to claim 1, 2, 3 or 5, the device for super isometric fixed rotation core strength training and information feedback monitoring is characterized in that: the super isometric fixed rotation core strength training and information The device for feedback monitoring also includes two-foot limiting projections (19), and the two-foot limiting projections (19) are arranged on the pedal (18). 7. The device for core strength training and information feedback monitoring under super isometric fixed rotation according to claim 6, characterized in that: the control circuit (4) includes two signal conditioning circuits (41), A/D conversion circuit (42) and controller (43); the control module is embedded in the controller (43), and the signal input ends of the two signal conditioning circuits (41) are respectively the first distance of the control circuit (4) signal input terminal and the second distance signal input terminal, the signal output terminals of the two signal conditioning circuits (41) are respectively connected to two analog signal input terminals of the A/D conversion circuit (42), and the A/D conversion circuit (42) digital signal output end connects the signal acquisition signal input end of controller (43), the A/D conversion control signal output end of described controller (43) connects the conversion control signal of A/D conversion circuit (42) The input end, the display drive signal output end of the controller is connected to the signal input end of the display (6). 8. The device for super isometric fixed-rotation core strength training and information feedback monitoring according to claim 7, characterized in that: the super-isometric fixed-rotation core strength training and information feedback monitoring device also includes A keyboard, the signal output end of the keyboard is connected to the keyboard signal input end of the control circuit (4); the control module also includes the following units: A key information acquisition unit, configured to receive key information input by the keyboard; The button information decoding unit is used to judge the content of the obtained button information. When the button information is sampling time information, the sampling time information is used as the sampling time information; when the button information is output digital display information, a digital display command is sent to the display unit. ; When the button information is image display information, send a graphic display command to the display unit; The display unit sends corresponding display information to the display (6) according to the received command. 9. according to claim 7 or 8 described device of super isometric lower fixed rotation core strength training and information feedback monitoring, it is characterized in that: described control circuit (4) also comprises two zeroing circuits (44), The two zero-adjustment circuits (44) correspond to two signal conditioning circuits (41) respectively, and the signal output end of each zero-adjustment circuit (44) is connected to the zero-adjustment signal input end of a signal conditioning circuit (41).