Anti-resistance eight-section brocade training device with continuously adjustable tension

Abstract

The utility model discloses an anti-resistance eight-section brocade training device with continuously adjustable tension, which comprises a box body with an inner cavity, and a connecting part used for fixing the box body in use is arranged on the box body in an outward extending manner. The traction component is symmetrical to the connecting component, extends outwards and is used for connecting the box body with a hand, a wrist or an arm of a human body, and an elastic force generating device for providing reverse resistance to the traction component when the traction component is stretched by the human body is arranged in the inner cavity. And the elastic force adjusting device is used for continuously adjusting the magnitude of the reverse resistance and is connected with the elastic force generating device. The bending length of the spring body is accurately controlled, required resistance output is obtained, continuous resistance adjustment can be achieved, and a user can more accurately select proper resistance for resistance training. The training of different actions of the eight-section brocade is well combined with resistance, and the eight-section brocade training device has higher applicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of rehabilitation medicine, especially to a tension continuous adjustable resistance eight-section exercise training device. BACKGROUND

[0002] With the acceleration of industrialization, urbanization and aging process, the number of chronic disease patients in China is rapidly increasing. Currently, the common chronic diseases affecting the health of the people mainly include cardiovascular and cerebrovascular diseases, hypertension, diabetes, malignant tumors, chronic respiratory diseases, etc. In addition, with the continuous acceleration of modern life rhythm and the increase of work pressure, many young people are in a sub-health state for a long time, and health problems such as metabolism imbalance, obesity, fatty liver, osteoporosis, cervical and lumbar strain caused by staying up late and lack of exercise are increasing, which seriously affects people's health. In the modern fast-paced life, health problems have gradually become the focus of people's attention. Therefore, how to solve the above health problems and improve the health level of people has gradually become the focus of attention in the field of rehabilitation medicine.

[0003] Eight-section exercise is a traditional Chinese fitness technique originated in the Northern Song Dynasty, known as "thousand-year longevity exercise", with the characteristics of elegant stretching and easy learning. The eight movements of eight-section exercise and their effects are as follows: Double-hand sky-touching regulating Sanjiao: through lifting the chest and abdomen and stretching the waist, the five internal organs and six viscera are lifted, the yang qi is promoted, and the blood and qi are regulated. Left and right bow-shooting like shooting a dove: through the action of shooting a bow, the lung qi is regulated, the lung capacity is increased, and the shoulder and back pain is eliminated. Single-hand lifting regulating spleen and stomach: through the action of two hands supporting upward and pressing downward, the abdominal cavity is pulled and massaged, the spleen and stomach are helped to digest and absorb. Looking back after five labors and seven injuries: through the action of turning the head and rotating the arm, the cervical vertebra is stimulated, the immunity is enhanced, and the cervical vertebra is adjusted. Head shaking and tail swinging to eliminate heart fire: through the action of head shaking and tail swinging, the heart meridian, heart meridian and small intestine meridian are dredged, and problems such as blood and qi deficiency, dizziness and blurred vision caused by excessive heart fire are treated. Two hands climbing foot to fix kidney and waist: through the action of greatly bending the waist, the waist and kidney are strengthened, the meridians are dredged, and the blood and qi are regulated. Clenching fist and glaring to increase strength: through the action of clenching fist and glaring, the arm strength, waist strength, leg strength and eye strength are increased. Seven acupoints on the back to eliminate all diseases: through the action of foot kicking, the body and mind are promoted, and all diseases are eliminated.

[0004] Modern medical research shows that eight-section exercise is a kind of low-intensity aerobic exercise, which can exercise the whole body skeleton joint muscle, stretch the internal organs and viscera, adjust the respiration, promote the blood and qi circulation, improve the sleep and mood. It is suitable for home exercise, especially for people who sit for a long time. In addition, eight-section exercise can also stimulate the body potential to assist the treatment of some chronic diseases and improve the body function of patients.

[0005] For example:

[0006] 1. "Application of Baduanjin in the Rehabilitation of Respiratory Function in Patients with Chronic Obstructive Pulmonary Disease", Wang Fei, Li Huafen, et al., "Chinese and Foreign Women's Health Research", February 2022, Issue 3.

[0007] 2. "Research and Analysis of the Intervention Effect of Baduanjin on Patients with Osteoporosis", Lu Dandan, Yao Jie, Liu Fang, et al., "Modern Chinese Medicine", January 2021, Vol. 41, No. 1.

[0008] 3. "Ultrasonic Study of the Effect of Baduanjin on Vascular Endothelial Function in Patients with Hypertension", Chen Qun, Shen Qiong, Xie Xiaoyan, et al., "Journal of Guangzhou University of Chinese Medicine", 2013, Issue 3.

[0009] In recent years, with the development and progress of rehabilitation medicine and the continuous updating of rehabilitation concepts, it has been found through research that the combination of Baduanjin and resistance training has obvious auxiliary therapeutic effects on chronic diseases such as chronic obstructive pulmonary disease and coronary heart disease, as well as cervical spondylosis, osteoporosis in the elderly, and sleep problems in young people. For example:

[0010] 1. "Effect of Elastic Band Resistance Training Combined with Baduanjin on Physical Activity and Quality of Life in Patients with COPD", Hu Jiao, Nanchang University, 2023.

[0011] 2. "Effect of Isometric Resistance Training Combined with Baduanjin on the Recovery of Cervical Spine Function and Quality of Life in Patients with Cervical Spondylosis", Chen Zhenyu, "China Modern Drug Application", June 13, 2024.

[0012] 3. "Effect of Baduanjin Rehabilitation Exercise Combined with Elastic Band Resistance Training Intervention on Cardiorespiratory Function Indicators and Exercise Tolerance in Elderly Patients with Coronary Heart Disease", Gao Xiaoyan, "Reflex Therapy and Rehabilitation Medicine", April 2024.

[0013] 4. "Effect of Baduanjin Combined with Elastic Band Resistance Training on Sleep Quality and Cervical Spine Function in Military Officers and Soldiers", Wang Qian, Zhang Jingjing, "Chinese Sanatorium Medicine", Vol. 31, No. 1, 2022.

[0014] 5. "Research and Analysis of the Intervention Effect of Baduanjin on Patients with Osteoporosis", Authors: Lu Dandan, Yao Jie, Liu Fang, et al., "Modern Chinese Medicine", January 2021, Vol. 41, No. 1.

[0015] Therefore, the Ba Duan Jin combined with the resistance training has been applied to the actual disease physiotherapy and auxiliary treatment, and the ideal effect can be proved by the measured data in the actual application. However, when the Ba Duan Jin is practiced, how to select the appropriate resistance training to achieve the best rehabilitation effect or training effect within the bearing range of the human body is difficult to be controlled and adjusted artificially. Because the resistance required by different actions of the Ba Duan Jin to different parts of the human body is different, different resistances need to be adjusted for different exercise postures for combined resistance exercise. However, the tension of the elastic band used in the traditional Ba Duan Jin training is affected by the material, elasticity and use skill, and the tension generated is very uneven, and the resistance generated by each elastic band is fixed, which is similar to the dumbbell or barbell, and the resistance cannot be artificially adjusted, which cannot meet the best training effect of different postures on different parts of the body for the Ba Duan Jin exercisers.

[0016] Meanwhile, the existing technology does not have an accurate auxiliary rehabilitation training standard for the traditional coronary heart disease, heart failure, myocardial infarction, aphasia, severe articulatory disorders, osteoporosis, hip joint postoperative, stroke and other auxiliary rehabilitation training, and only a series of processes are completed through the expression of the body movement, and the effect is difficult to evaluate and analyze, and the training process of the patients or users of different ages is also difficult to be quantified in the basic training intensity and effect. The application of the Ba Duan Jin combined with the controllable resistance training to the auxiliary rehabilitation training of various chronic diseases and the improvement of the sub-health state of adults has important significance, and the application of the technology has not been reported.

[0017] Therefore, how to realize the Ba Duan Jin training combined with the resistance, and the different patients or users can reasonably select the appropriate resistance according to the different actions of the Ba Duan Jin, and achieve the best rehabilitation effect or training effect within the bearing range of the human body, further improve the auxiliary effect of the Ba Duan Jin rehabilitation training, has become a difficult problem to be solved by the medical staff in the field of rehabilitation medicine. SUMMARY

[0018] In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a tension continuously adjustable resistance Ba Duan Jin training device which realizes the Ba Duan Jin training combined with the resistance, and different patients or users can reasonably select the appropriate resistance according to the different actions of the Ba Duan Jin, and achieve the best rehabilitation effect or training effect within the bearing range of the human body.

[0019] To solve the above technical problems, the technical scheme adopted by the utility model is: a tension continuously adjustable resistance eight-section exercise device, which comprises a box body with an inner cavity, a connecting component arranged outwardly on the box body and used for fixing the box body during use, a pulling component arranged outwardly symmetrically with the connecting component and used for connecting the box body with the hands, wrists or arms of a human body, an elastic force generating device arranged in the inner cavity and used for providing a reverse resistance to the pulling component when the human body stretches the pulling component, and an elastic force adjusting device used for continuously adjusting the size of the reverse resistance, wherein the elastic force adjusting device is connected with the elastic force generating device.

[0020] The tension continuously adjustable resistance eight-section exercise device, wherein the elastic force generating device comprises spring bodies arranged symmetrically and used for generating elastic bending force through bending deformation when the human body stretches the pulling component, the two spring bodies are arranged obliquely in opposite directions of the pulling component, and a fan-shaped accommodation area for accommodating the bending deformation and elongation of the spring bodies is formed in the inner cavity between the spring bodies and the pulling component.

[0021] The tension continuously adjustable resistance eight-section exercise device, wherein the elastic force adjusting device comprises a support rod arranged in parallel with the axis of the spring bodies, an adjusting block arranged on the spring body and used for adjusting the bending length of the spring body and fixing the spring body in the bending state, and a driving mechanism used for driving the adjusting block to slide along the length direction of the support rod.

[0022] The tension continuously adjustable resistance eight-section exercise device, wherein the driving mechanism comprises threaded rods respectively connected with the two adjusting blocks in a threaded manner, a driving gear used for driving the two threaded rods to rotate synchronously and the adjusting blocks to slide synchronously along the support rod, and driven gears respectively arranged on the two threaded rods and engaged with the driving gear.

[0023] The tension continuously adjustable resistance eight-section exercise device, wherein the support rod comprises a rod body, a sliding groove in sliding fit with the adjusting block is formed in the length direction of the rod body, and the sliding groove is a dovetail groove.

[0024] The tension continuously adjustable resistance eight-section exercise device, wherein the adjusting block comprises a sliding end in sliding connection with the support rod and a limiting and fixing end in sliding fit with the surface of the spring body, a sliding hole allowing the spring body to pass through is formed in the limiting and fixing end, and a screw hole in threaded fit with the threaded rod and used for driving the adjusting block to slide along the surface of the spring body is formed between the sliding end and the limiting and fixing end.

[0025] The tension continuously adjustable resistance eight-section exercise device, wherein the inner wall of the sliding hole is covered with an elastic layer used for fixing the spring body in the bending state.

[0026] The tension continuously adjustable resistance eight-section exercise training device has the frame structure arranged on the inner wall of the box body for improving the strength of the box body, the mounting disc arranged in the inner cavity, the mounting disc being fixed with the frame structure through the plurality of support members welded on the frame structure, and the elastic force generating device and the elastic force adjusting device being fixed on the mounting disc.

[0027] The tension continuously adjustable resistance eight-section exercise training device has the pulling component being a pulling rope with a fixed end and a free end, the fixed end being inserted into the inner cavity of the box body and fixed with the top of the spring body, the free end being extended out of the box body, the loop being arranged on the free end and used for connecting the pulling rope with the hand, the wrist or the arm of the human body, and the connecting component including the fixed rope connected with the box body and the clamping piece arranged on the other end of the fixed rope and used for connecting the fixed rope at the required height position.

[0028] The tension continuously adjustable resistance eight-section exercise training device has the surface of the box body being provided with the identification disc used for assisting in adjusting the specific value of the elastic force and the knob used for selecting the specific value, and the knob being rotationally connected with the elastic force adjusting device in the box body.

[0029] The tension continuously adjustable resistance eight-section exercise training device has the following advantages: the device is inspired by the arm force rod of the fitness equipment, the bending moment force and the elastic force generated by the spring body when the spring body is subjected to the pulling force are utilized, a small-size device is provided with a large resistance output, the main and driven gears are matched, the screw rod and the adjusting block are combined, the bending length of the spring body is accurately controlled, the required resistance output is obtained, the continuous resistance size adjustment is realized, the user can accurately select the appropriate resistance for the resistance training, the training of the different actions of the eight-section is combined with the good resistance, the device has higher applicability, different patients or users can reasonably select the appropriate resistance according to the different actions of the eight-section, the best rehabilitation effect or training effect is achieved under the premise that the human body is not exceeded, and the auxiliary effect of the eight-section rehabilitation training is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a whole structure schematic view of the device;

[0031] Figure 2 It is an internal structure enlarged view of the box body of the device;

[0032] Figure 3 It is a connection structure enlarged view of the elastic force generating device, the spring body and the elastic force adjusting device of the device;

[0033] Figure 4 for Figure 2 enlarged view of the local structure of part A in the middle;

[0034] Figure 5 enlarged view of the connecting structure of the adjusting block and the spring body;

[0035] Figure 6 enlarged view of the connecting structure of the support rod and the adjusting block;

[0036] Figure 7 for Figure 2 enlarged view of the local structure of part B in the middle;

[0037] Figure 8 schematic diagram of the distance and path of the bending deformation and elongation of the spring body of the utility model. DETAILED DESCRIPTION

[0038] The utility model will be further described in detail below in combination with the drawings and specific embodiments.

[0039] In the utility model, under the condition that no opposite description is made, the orientation words such as '' and '' used are usually the upper and lower of the actual use or working state of the device, and specifically the drawing direction in the drawings; and '' and '' are for the contour of the device. In addition, in the description of the present application, the term '' includes '' means '' includes but is not limited to ''. The words first, second, third, etc. are only used as markers, and do not impose numerical requirements or establish order. The word '' multiple '' means '' two or more ''.

[0040] As Figures 1-8 shown, a tension continuously adjustable resistance eight-section exercise device, including a box body 2 with inner cavity 1, the box body 2 is composed of upper and lower two parts, and is detachably connected by a plurality of counterbores screw 3. A framework structure 4 for improving the strength of the box body 2 is arranged on the inner wall of the box body 2, and a mounting disc 5 is arranged in the inner cavity 1, and the mounting disc 5 is fixed with the framework structure 4 by a plurality of support members 6 welded on the framework structure 4, wherein the support member 6 is fixed with the mounting disc 4 by a screw 7. In order to facilitate carrying and placing, and more convenient when using, the overall shape of the box body 2 is disc-shaped. The framework structure 4 installed in the utility model can greatly improve the overall strength of the box body 2, avoid the problem that the box body is damaged when the user performs high-intensity stretching, the framework structure 4 can adopt the metal material commonly used in fitness equipment, and the structure is annular and is fixed on the inner wall of the box body 2 by screws. Of course, in order to reduce the overall weight of the box body 2, an aluminum alloy material with high strength and light weight can be selected for manufacturing.

[0041] In order to adjust the resistance required by the training part at any time according to different exercise or training postures of Baduanjin, the users of different ages and different training purposes, a mark disc 8 for assisting in adjusting the specific value of elastic force and a knob 9 for selecting the specific value are arranged on the surface of the box body 2, a connecting component 10 for fixing the box body 2 during use is arranged on the outer side wall of the box body 2 and extends outward, the connecting component 10 comprises a fixed rope 11 connected with the box body 2 at one end, and a clamping piece 12 for connecting the fixed rope 11 at a required height position is arranged at the other end of the fixed rope 11. In order to improve the connecting strength of the fixed rope 11 and the box body 2, a vertical connecting column 13 is fixed on the skeleton structure 4, and the fixed rope 11 is bolted to the connecting column 13, so that firm connection is realized. Since the exercise of Baduanjin can be carried out at any time and anywhere, for example, at home, in a park, in an office, in a dormitory and the like, in order to be more convenient to use, the specific structure of the clamping piece 12 can adopt a cylindrical body made of cotton material or coated with rubber elastic material, which can be fixed between a door body and a door frame during use, and firm connection can be realized only by closing the door, and the extrusion of the door body and the door frame can also ensure that the cylindrical body does not slip, so that the requirement of different training heights is realized. Of course, a metal buckle can also be used, which is convenient to connect with park fitness equipment, such as parallel bars, in the park for use, and the specific structure and material of the clamping piece 12 can be flexibly selected according to the structure of the general fitness equipment.

[0042] As shown in Figures 1-2 the other end of the box body 2, that is, the position symmetrical to the connecting component 10, a pulling component 13 for connecting the box body 2 with the hand, wrist or arm of the human body is arranged and extends outward. The pulling component 13 is a pulling rope 16 with a fixed end 14 and a free end 15, and two pulling ropes 16 are installed, the fixed end 14 extends into the inner cavity 1 of the box body 2 and is fixed with the top of the spring body 19, the free end 15 extends out of the box body 2, and a thimble 17 for connecting the pulling rope 16 with the hand, wrist or arm of the human body is arranged on the free end 15. The pulling rope 16 can adopt a rope with a certain elasticity or a rigid rope, of course, in order to more accurately determine the resistance of the resistance training, the rope without elasticity is preferred. In order to facilitate the user to operate, the thimble 17 can be made of a conventional elastic Velcro structure, which is convenient to bind and open, and this technology is prior art, so it will not be described in detail here. In order to be able to understand the physical condition of the user in the resistance training, an electronic measuring device for measuring heart rate and breathing function in real time can be installed on the thimble 17, so as to facilitate the user to adjust the resistance according to the resistance training condition of the user.

[0043] In the inner cavity 1, an elastic force generating device 18 is arranged to provide a reverse resistance to the pulling component 13 when the human body stretches the pulling component 13, and the elastic force generating device is fixed on the mounting disc 5. Specifically, the elastic force generating device 18 includes symmetrically arranged spring bodies 19 that generate elastic bending force by bending deformation when the human body stretches the pulling component 13. As known, the formula of the elastic force is F=kx, wherein F is the size of the elastic force, k is the stiffness coefficient of the spring, and x is the deformation amount of the spring (i.e. the elongation or compression amount of the spring). The stiffness coefficient k is determined by the material, length and thickness of the spring, and the deformation amount x is the difference between the current length and the original length of the spring. The force generated by the bending of the spring is the bending moment. The bending moment is a measure of the bending effect of the force on the object, and is usually represented as the force multiplied by the force arm (the distance between the force application point and the force receiving point). When the spring is bent by the force applied to both ends, the bending moment is generated, which causes the spring to bend. The formula of the bending moment is known in the prior art and will not be described in detail here. That is, the utility model utilizes the fact that the spring body 19 is bent to generate a bending moment when it is stretched, and the spring body 19 is stretched to generate a stretching force when it is bent. The superposition of the bending moment and the stretching force generates the resistance required by the utility model. Since the elastic force generated by the spring body 19 is determined by the material, thickness of the spring body 19 itself, and the force arm or the elongation distance, the utility model is designed to maximize the resistance generated by the spring body 19 in the limited space of the box body 2, so as to provide more resistance options for the user. Therefore, the two spring bodies 19 are inclined in opposite directions along the pulling component 13, as shown in Figure 2 . The structure can give the spring body 19 a greater deformation (bending + elongation) capability, and a fan-shaped accommodation area 20 is formed in the inner cavity between the spring body 19 and the pulling component 13 to accommodate the bending deformation and elongation of the spring body 19, thereby providing sufficient deformation space for the spring body 19, as shown in Figure 8 .

[0044] In resistance training, the resistance required by the user is often between 5-10 pounds or 15-20 pounds. The fixed resistance value cannot meet the needs of the user at this time. Excessive resistance cannot complete the movements of the Eight-Section Broadsword, which may cause deformation of the movements or even injury. On the other hand, small resistance cannot achieve good resistance training effect. This is a common phenomenon. Therefore, in order to solve this problem and achieve the purpose of gradually increasing or decreasing the resistance, the size of the resistance can be continuously adjusted. An elastic force adjusting device 21 is arranged in the box body 2 to continuously adjust the size of the reverse resistance generated by the spring body 19, and the elastic force adjusting device 21 is fixed on the mounting disc 5. Specifically, as shown in Figures 2-3As shown in the figure, the elastic force adjusting device 21 comprises a support rod 22 arranged in parallel with the axis of the spring body 19, an adjusting block 23 arranged on the spring body 19 and slidingly connected with the support rod 22, and a driving mechanism 24 for driving the adjusting block 23 to slide along the length direction of the support rod 22.

[0045] As shown in the figure, the support rod 22 comprises a rod body 25, and a sliding groove 26 is arranged on the rod body 25 along the length direction of the rod body 25 and slidingly cooperates with the adjusting block 23. Figures 4-6 As shown in the figure, the support rod 22 comprises a rod body 25, and a sliding groove 26 is arranged on the rod body 25 along the length direction of the rod body 25 and slidingly cooperates with the adjusting block 23. The adjusting block 23 is composed of a sliding end 27 slidingly connected with the support rod 22 and a limiting fixed end 28 slidingly cooperating with the surface of the spring body 19, a sliding hole 29 allowing the spring body 19 to pass through is arranged on the limiting fixed end 28, and a screw hole 30 for driving the adjusting block 23 to slide along the surface of the spring body 19 is arranged between the sliding end 27 and the limiting fixed end 28 and threadedly cooperates with a threaded rod 33. Since the principle of the utility model is to provide resistance for the pulling rope through the bending and elongation of the spring body 19 to generate bending moment force and elastic tensile force, the adjusting block 23 plays a role of clamping the pitch position between the adjacent two coils of the spring on the surface of the spring body 19 through the end edge of the sliding hole 29 when the spring body 19 is bent and elongated, thereby preventing the spring inside the sliding hole 29 from continuing to bend and elongate. Meanwhile, in order to more accurately control the output of the resistance and avoid the spring body 19 from being excessively bent and elongated, an elastic layer 31 for fixing the spring body 19 in the bent state is covered on the inner wall of the sliding hole 29, and the elastic layer can be made of hard rubber material. When the spring body 19 is bent, the elastic layer 31 close to the top position of the sliding hole 29 is extruded to provide elastic resistance and friction force for the spring body 19, thereby further providing assistance for preventing the excess spring from extending out of the sliding hole 29.

[0046] Since the spring body 19 will apply reaction force on the adjusting block 23 when being bent and deformed and elongated, and the adjusting block 23 is slidingly connected with the support rod 22, the spring body 19 will indirectly transmit the tensile force to the support rod 22 when being bent. Therefore, in order to enhance the connection strength between the adjusting block 23 and the support rod 22 and ensure the flexibility of sliding, the sliding groove 26 is processed into a dovetail groove structure, and the sliding end 27 is in dovetail structure slidingly cooperating with the dovetail groove. The dovetail groove structure provides stable transverse limiting and fixing effect and strengthens the strength of the connection between the adjusting block 23 and the support rod 22. In addition, in order to further improve the stability of the support rod 22, a reinforcing rib 32 is installed on the outer side of the support rod 22 to improve the firmness of the support rod 22 and the mounting disc 5.

[0047] The utility model discloses drive mechanism 24 includes the threaded rod 33 who threads respectively with two adjusting block 23, and drive two threaded rods 33 synchronous rotation drive adjusting block 23 synchronous along the support pole 22 up and down sliding's driving gear 34 is arranged on two threaded rods 33 respectively from the driven gear 35, and two driven gears 35 all are engaged with driving gear 34. Knob 9 is rotatably connected with driving gear 34 in box body 2, when adjusting resistance, can drive driving gear 34 rotation through rotating knob 9, thereby drive two driven gears 34 synchronous rotation, drive threaded rod 33 rotation, and adjusting block 23 is driven along spring body 19 sliding under threaded rod 33, and the distance between adjusting block 23 and spring body 19 top is adjusted, realizes the output of different resistance. The utility model discloses can single arm or single hand carry out the pulling resistance exercise, also can two arms simultaneously carry out, and the use process is flexible and convenient.

[0048] Regarding the test effect, in the study on the influence of elastic rope resistance training on bone mineral density, lower limb muscle strength and balance ability of postmenopausal osteoporosis, the applicant selected 66 postmenopausal osteoporosis patients admitted to the Navy 971 Hospital from January 2020 to January 2023 as the research object, and divided them into a control group and an experimental group according to the random number table method, with 33 cases in each group. Method: The control group was trained with routine Baduanjin, and the experimental group was trained with the training device of the utility model on the basis of the control group (the pulling rope and the fixed rope were selected to be 6mm in diameter and 3 meters long without elastic nylon rope, and the device output resistance was 6.6 pounds). The training period was 6 months, and the changes of waist and back pain score (VAS), lumbar and femoral neck bone mineral density (BMD), lower limb muscle strength and balance ability of the two groups before and after treatment were observed. Results: The VAS scores of the two groups after treatment were significantly reduced (P<0.05), and the decrease in the experimental group was more obvious. There was no statistically significant difference in bone mineral density (BMD) between the two groups, but the BMD values of the lumbar spine (L1-4) of the two groups before and after treatment were increased (P<0.05). The knee extension and flexion peak torque of the experimental group at 0° / s and 60° / s angular velocity were significantly higher than those of the control group (P<0.05). Balance ability assessment (TUG, BBS) showed that the two groups were significantly improved after treatment, and the effect of the experimental group was more outstanding (P<0.05).

[0049] It can be seen that, since the resistance output by the training device of the utility model under the maximum deformation (bending + elongation) state can be precisely controlled, the training device of the utility model is combined with Baduanjin training, and through appropriate and accurate resistance selection, compared with traditional elastic rope Baduanjin training, the patient's waist and back pain is significantly reduced, the lower limb muscle strength and balance ability are significantly improved, and the bone mineral density is increased, which has a positive preventive effect on postmenopausal osteoporosis patients and has practical popularization and application value in the field of rehabilitation medicine.

[0050] Of course, the above description is not a limitation of the utility model, the utility model is not limited to the above examples, the ordinary skilled in the art, within the scope of the utility model, the changes, modifications, additions or replacements made, should belong to the protection scope of the utility model.

Claims

1. A resistance training device for Baduanjin (Eight Pieces of Brocade) with continuously adjustable tension, characterized in that: The utility model provides a box body with an inner cavity, a connecting part outwardly extending on the box body for fixing the box body in use, and a pulling part outwardly extending symmetrically with the connecting part for connecting the box body with the human hand, wrist or arm, an elastic force generating device for providing a counteracting resistance to the pulling part when the human body stretches the pulling part, and an elastic force adjusting device for continuously adjusting the size of the counteracting resistance are arranged in the inner cavity.

2. The tension continuously adjustable resistance eight-section exercise device according to claim 1, characterized in that: The elastic force generating device comprises two spring bodies symmetrically arranged for generating an elastic bending force by bending deformation when the human body stretches the pulling part, and the two spring bodies are obliquely arranged in opposite directions of the pulling part, forming a sector-shaped accommodation area in the inner cavity between the spring bodies and the pulling part for accommodating the bending deformation and elongation of the spring bodies.

3. The tension continuously adjustable resistance eight-section exercise device according to claim 2, characterized in that: The elastic force adjusting device comprises a support rod arranged in parallel with the axis of the spring bodies, an adjusting block on the spring bodies for adjusting the bending length of the spring bodies and fixing the spring bodies in the bent state in sliding connection with the support rod, and a driving mechanism for driving the adjusting block to slide along the length direction of the support rod.

4. The tension continuously adjustable resistance eight-section exercise device according to claim 3, characterized in that: The driving mechanism comprises two threaded rods in threaded connection with the two adjusting blocks respectively, and a driving gear for driving the two threaded rods to rotate synchronously and the adjusting blocks to slide synchronously along the support rod, and two driven gears arranged on the two threaded rods respectively and in engagement with the driving gear.

5. The tension continuously adjustable resistance eight-section exercise device according to claim 3, characterized in that: The support rod comprises a rod body, and a sliding groove in sliding cooperation with the adjusting block is formed in the length direction of the rod body, and the sliding groove is a dovetail groove.

6. The tension continuously adjustable resistance eight-section exercise device according to claim 4, characterized in that: The adjusting block comprises a sliding end in sliding connection with the support rod and a limiting and fixing end in sliding cooperation with the surface of the spring body, a sliding hole allowing the spring body to pass through is formed in the limiting and fixing end, and a screw hole for driving the adjusting block to slide along the surface of the spring body in threaded cooperation with the threaded rod is formed between the sliding end and the limiting and fixing end.

7. The tension continuously adjustable resistance eight-section exercise device according to claim 6, characterized in that: The inner wall of the sliding hole is covered with an elastic layer for fixing the spring body in the bent state.

8. The tension continuously adjustable resistance eight-section exercise device according to claim 1, characterized in that: The inner wall of the box body is provided with a framework structure for improving the strength of the box body, and an installation disc is arranged in the inner cavity, the installation disc is fixed with the framework structure through a plurality of support members welded on the framework structure, and the elastic force generating device and the elastic force adjusting device are fixed on the installation disc.

9. The tension continuously adjustable resistance eight-section exercise device according to claim 2, characterized in that: The pulling part is a pulling rope with a fixed end and a free end, the fixed end extends into the inner cavity of the box body and is fixed with the top of the spring body, the free end extends out of the box body, and a thimble for connecting the pulling rope with the human hand, wrist or arm is arranged on the free end, and the connecting part comprises a fixed rope connected with the box body at one end, and a clamping piece for connecting the fixed rope at a desired height position is arranged at the other end of the fixed rope.

10. The tension continuously adjustable resistance eight-section exercise device according to claim 1, characterized in that: The surface of the box body is provided with an identification disc for assisting in adjusting the specific value of the elastic force, and a knob for selecting the specific value, and the knob is in rotational connection with the elastic force adjusting device in the box body.

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