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

Abstract

The invention 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 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 present invention relates to the field of rehabilitation medicine, and particularly to an anti-resistance Baduanjin training device with continuously adjustable tension. Background Art

[0002] With the acceleration of the industrialization process, the common chronic diseases affecting physical health currently mainly include cardiovascular and cerebrovascular diseases, hypertension, diabetes, malignant tumors, chronic respiratory diseases, etc. In addition, with the continuous acceleration of the modern life rhythm and the increase in work pressure, many young people are in a sub-healthy state for a long time. Health problems such as metabolic imbalance, obesity, fatty liver, osteoporosis, and cervical and lumbar sprain caused by staying up late and lack of exercise are increasing, and health problems have gradually become the focus of people's attention. Therefore, how to solve the above health problems and improve people's health level has gradually become the focus of attention in the field of rehabilitation medicine.

[0003] Baduanjin is a traditional Chinese fitness exercise originating from the Northern Song Dynasty, known as the "thousand-year longevity exercise", and has the characteristics of stretching gracefully and being easy to learn. The eight movements of Baduanjin and their effects are as follows: Holding the Heavens with Both Hands to Regulate the Triple Burner: By lifting the chest and abdomen, stretching the waist and back, lifting the five internal organs, promoting yang qi, and regulating qi and blood. Drawing the Bow with Both Hands as if Shooting a Hawk: By performing the action of drawing a bow and shooting an arrow, regulating the lung qi, increasing the vital capacity of the lungs, and eliminating soreness in the shoulders and back. Regulating the Spleen and Stomach Requires Lifting One Hand: By pushing up and pressing down with both hands, pulling the abdominal cavity, and massaging the spleen, stomach, liver, and gallbladder, which is helpful for digestion and absorption. Looking Backward to Treat the Five Exhaustions and Seven Injuries: By turning the head and rotating the arms, stimulating the Dazhui acupoint on the neck, enhancing immunity, and adjusting the cervical vertebra. Shaking the Head and Wagging the Tail to Remove Heart Fire: By shaking the head and wagging the tail, dredging the pericardium meridian, heart meridian, and small intestine meridian, and treating problems such as qi and blood deficiency and dizziness caused by excessive heart fire. Grasping the Feet with Both Hands to Strengthen the Kidneys and Waist: By performing large-scale pitching and bending movements of the waist, strengthening the kidneys and waist, dredging the meridians, and regulating qi and blood. Clenching the Fists and Glaring to Increase Strength: By clenching the fists and glaring, enhancing arm strength, waist strength, leg strength, and eye strength. Standing on the Toes Seven Times to Eliminate All Diseases: By standing on the toes, promoting physical and mental health and eliminating all diseases.

[0004] Modern medical research shows that Baduanjin is a medium- to low-intensity aerobic exercise that can exercise the bones, joints, and muscles of the whole body, stretch the internal organs and lungs, adjust breathing, promote blood circulation, and improve sleep and mood. It is suitable for practicing at home, especially for people who sit for a long time. In addition, Baduanjin can also assist in the treatment of certain chronic diseases by stimulating the body's potential and improving the body function of patients.

[0005] For example:

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

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

[0008] 3. "Ultrasonic Study on the Effect of Baduanjin on Vascular Endothelial Function in Hypertension", Chen Qun, Shen Qiang, Xie Xiaoyan, etc., "Journal of Guangzhou University of Chinese Medicine", No. 3, 2013.

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

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

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

[0012] 3. "Effect of Baduanjin Rehabilitation Exercise Combined with Elastic Band Resistance Training Intervention on Cardiopulmonary Function Indexes and Exercise Endurance of Elderly Coronary Heart Disease Patients", Gao Xiaoyan, "Reflexology and Rehabilitation Medicine", Issue 04, 2024.

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

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

[0015] It can be seen that Baduanjin combined with resistance training has been applied to the actual physical therapy and adjuvant therapy of diseases, and the measured data can prove that ideal effects have been achieved in actual applications. However, when performing Baduanjin exercises, it is currently difficult to manually control and adjust how to select appropriate resistance training to achieve the best rehabilitation effect or training effect within the range that the human body can bear. Since the resistance magnitudes required for the different actions of Baduanjin on different parts of the human body are all different, it is necessary to adjust different resistances for combined resistance exercises according to different exercise postures. However, the pulling force generated by the elastic bands used in traditional Baduanjin training is affected by the material, elasticity, and usage skills. Not only is the generated pulling force very uneven, but the resistance generated by each elastic band is fixed, similar to dumbbells or barbells, and the magnitude of the resistance cannot be manually adjusted, which cannot meet the best training effects on various parts of the body in different postures for Baduanjin practitioners.

[0016] At the same time, for the existing auxiliary rehabilitation training for traditional coronary heart disease, heart failure, myocardial infarction, aphasia, severe dysarthria, osteoporosis, after hip joint surgery, stroke, etc., there are no accurate auxiliary rehabilitation training standards in the prior art. Only a series of processes are completed through the expression of limb movements, and the effects are often difficult to evaluate and analyze. Moreover, patients or users of different ages also have difficulty in quantifying the basic training intensity and effects for the training process. The application of combining Baduanjin with controllable resistance training for the auxiliary rehabilitation training of various chronic diseases and the improvement of the sub-healthy state of adults is of great significance, and there is no report on the application of this technology at present.

[0017] Therefore, how to achieve the combination of Baduanjin training and resistance, and enable different patients or users to reasonably select appropriate resistance according to different actions of Baduanjin, and achieve the best rehabilitation effect or training effect without exceeding the range that the human body can bear, and further improve the auxiliary effect of Baduanjin rehabilitation training has become a difficult problem that medical personnel in the field of rehabilitation medicine urgently need to solve. Summary of the Invention

[0018] Aiming at the deficiencies existing in the prior art, the technical problem to be solved by the present invention is to provide a resistance Baduanjin training device with continuously adjustable tension that can achieve the combination of Baduanjin training and resistance, and enable different patients or users to reasonably select appropriate resistance according to different actions of Baduanjin, and achieve the best rehabilitation effect or training effect without exceeding the range that the human body can bear.

[0019] To solve the above technical problems, the technical solution adopted by the present invention is: a resistance Baduanjin training device with continuously adjustable tension, including a box body with an inner cavity, a connecting component extending outward from the box body for fixing the box body during use, and a pulling component symmetrically extending outward from the connecting component for connecting the box body with the hand, wrist or arm of the human body. An elastic force generating device for providing a reverse resistance to the pulling component when the human body stretches the pulling component, and an elastic force adjusting device for continuously adjusting the magnitude of the reverse resistance are arranged in the inner cavity. The elastic force adjusting device is connected to the elastic force generating device.

[0020] For the above resistance Baduanjin training device with continuously adjustable tension, the elastic force generating device includes symmetrically arranged spring bodies that generate elastic bending forces through bending deformation when the human body stretches the pulling component. The two spring bodies are inclined in opposite directions along the pulling component, and a fan-shaped accommodating area for the bending deformation and elongation of the spring bodies is formed in the inner cavity between the spring bodies and the pulling component.

[0021] For the above resistance Baduanjin training device with continuously adjustable tension, the elastic force adjusting device includes a support rod arranged parallel to the axis of the spring body. An adjusting block that is slidably connected to the support rod and is used to adjust the bending length of the spring body and fix the spring body in the bent state is arranged on the spring body, and a driving mechanism for driving the adjusting block to slide along the length direction of the support rod.

[0022] For the above resistance Baduanjin training device with continuously adjustable tension, the driving mechanism includes threaded rods respectively threadedly connected to the two adjusting blocks, and a driving gear for driving the two threaded rods to rotate synchronously to drive the adjusting blocks to slide up and down along the support rod synchronously. Driven gears are respectively arranged on the two threaded rods, and both driven gears are engaged with the driving gear.

[0023] For the above resistance Baduanjin training device with continuously adjustable tension, the support rod includes a rod body, and a sliding groove that is slidably matched with the adjusting block is opened on the rod body along the length direction of the rod body. The sliding groove is a dovetail groove.

[0024] For the above resistance Baduanjin training device with continuously adjustable tension, the adjusting block is composed of a sliding end slidably connected to the support rod and a limiting and fixing end slidably matched with the surface of the spring body. A sliding hole allowing the spring body to pass through is opened on the limiting and fixing end, and a threaded hole threadedly matched with the threaded rod is opened between the sliding end and the limiting and fixing end for driving the adjusting block to slide along the surface of the spring body.

[0025] For the above resistance Baduanjin training device with continuously adjustable tension, the inner wall of the sliding hole is covered with an elastic layer for fixing the spring body in the bent state.

[0026] For the above-mentioned resistance Baduanjin training device with continuously adjustable tension, a framework structure for enhancing the strength of the box body is provided on the inner wall of the box body. An installation disk is arranged in the inner cavity. The installation disk is fixed to the framework structure through a plurality of support members welded to the framework structure. Both the elastic force generating device and the elastic force adjusting device are fixed on the installation disk.

[0027] For the above-mentioned resistance Baduanjin training device with continuously adjustable tension, the pulling component 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 to the top of the spring body. The free end extends out of the box body. A collar for connecting the pulling rope to the hand, wrist or arm of the human body is arranged at the free end. The connecting component includes a fixed rope with one end connected to the box body, and a clamping member for connecting the fixed rope to the required height position is arranged at the other end of the fixed rope.

[0028] For the above-mentioned resistance Baduanjin training device with continuously adjustable tension, a marking disk for assisting in adjusting the specific value of the elastic force and a knob for selecting the specific value are arranged on the surface of the box body. The knob is rotationally connected to the elastic force adjusting device in the box body.

[0029] The advantages of the resistance Baduanjin training device with continuously adjustable tension of the present invention are as follows: Inspired by the fitness equipment "arm strength bar", the present invention utilizes the bending moment force and elastic force generated by the spring body when being subjected to a pulling force to provide a large resistance output for a small-sized device. At the same time, by using the cooperation of the driving and driven gears and the combination of the threaded rod and the adjusting block, the accurate control of the bending length of the spring body is realized, the required resistance output is obtained, and the continuous adjustment of the resistance magnitude can be achieved, enabling the user to more accurately select the appropriate resistance for resistance training. The training of different movements of Baduanjin is well combined with resistance, having higher applicability. And different patients or users can reasonably select the appropriate resistance according to different movements of Baduanjin to achieve the best rehabilitation effect or training effect on the premise of not exceeding the human body's tolerance range, further enhancing the auxiliary effect of Baduanjin rehabilitation training. The present invention is flexible in use, convenient to adjust, has a wide range of applications, can be suitable for people of different ages, and has an obvious auxiliary effect. Description of the Drawings

[0030] Figure 1 is the overall structural schematic diagram of the present invention;

[0031] Figure 2 is the enlarged internal structural diagram of the box body of the present invention;

[0032] Figure 3 is the enlarged connection structural diagram of the elastic force generating device, the spring body and the elastic force adjusting device of the present invention;

[0033] Figure 4 is Figure 2 an enlarged view of the partial structure of part A in

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

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

[0036] Figure 7 is Figure 2 an enlarged view of the partial structure of part B in

[0037] Figure 8 a schematic diagram of the distance and path of the bending deformation and elongation of the spring body of the present invention. Detailed implementation manners

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] In the present invention, unless otherwise stated, the orientation terms such as "upper" and "lower" generally refer to the upper and lower in the actual use or working state of the device, specifically the drawing direction in the accompanying drawings; while "inner" and "outer" refer to the outline of the device. In addition, in the description of the present application, the term "comprising" means "including but not limited to". The terms first, second, third, etc. are only used as labels and do not impose numerical requirements or establish an order. The term "a plurality of" means "two or more".

[0040] As Figure 1-8 shown, a resistance Baduanjin training device with continuously adjustable tension includes a box body 2 having an inner cavity 1. The box body 2 is composed of upper and lower parts and is detachably connected by a plurality of countersunk screws 3. A skeleton structure 4 for improving the strength of the box body 2 is provided on the inner wall of the box body 2. An installation disk 5 is arranged in the inner cavity 1. The installation disk 5 is fixed to the skeleton structure 4 through a plurality of support members 6 welded to the skeleton structure 4, wherein the support members 6 and the installation disk 4 are fixed by screws 7. For the convenience of carrying, placing and more convenient use during operation, the overall shape of the box body 2 is disc-shaped. The installed skeleton structure 4 of the present invention can greatly improve the overall strength of the box body 2 and avoid the problem that the box body is damaged when the user performs large-intensity stretching. The skeleton structure 4 can be made of a metal material commonly used in fitness equipment, and the structure is made into a ring shape and fixed to 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 production.

[0041] In order to facilitate users to adjust the resistance required for the training part at any time according to different exercise or training postures of Baduanjin, combined with users of different age groups and different training purposes, an identification plate 8 for assisting in adjusting the specific value of the elastic force and a knob 9 for selecting the specific value are provided on the surface of the box body 2. An connecting component 10 for fixing the box body 2 during use extends outward from the outer side wall of the box body 2. The connecting component 10 includes a fixing rope 11 with one end connected to the box body 2, and a clamping member 12 for connecting the fixing rope 11 to the required height position is provided at the other end of the fixing rope 11. In order to improve the connection strength between the fixing rope 11 and the box body 2, a vertical connecting column 13 is fixed on the skeleton structure 4, and the fixing rope 11 is tied to the connecting column 13 to achieve a firm connection. Since the practice of Baduanjin can be carried out at any time and place, such as at home, in the park, in the office, in the dormitory, etc., in order to make it more convenient to use, the specific structure of the clamping member 12 of the present invention can be a cylinder made of cotton-added material or elastic material coated with rubber. During use, it can be fixed between the door body and the door frame, and a firm connection can be achieved only by closing the door. The cylinder can also be ensured not to slip through the extrusion between the door body and the door frame, meeting the requirements of different training heights. Of course, a metal buckle can also be used, which is convenient to connect the buckle to park fitness equipment, such as parallel bars, in the park. The specific structure and material of the clamping member 12 can be flexibly selected according to the structure of ordinary fitness equipment.

[0042] As Figure 1-2 shown, at the other end of the box body 2, that is, at the position symmetrical to the connecting component 10, a pulling component 13 for connecting the box body 2 to the hand, wrist or arm of the human body extends outward. The pulling component 13 is a pulling rope 16 having a fixed end 14 and a free end 15. Two pulling ropes 16 are installed. The fixed end 14 extends into the inner cavity 1 of the box body 2 and is fixed to the top of the spring body 19, and the free end 15 extends out of the box body 2. A loop 17 for connecting the pulling rope 16 to the hand, wrist or arm of the human body is provided on the free end 15. The pulling rope 16 can be a rope with a certain elasticity or a rigid rope. Of course, in order to perform more accurate resistance determination for resistance training, a rope without elasticity is preferably selected for production. In order to facilitate the operation of the user, the loop 17 can be made of a conventional elastic velcro structure, which is convenient for bundling and opening. This technology is an existing technology, so it will not be introduced in detail here. In order to understand the physical condition of the user during resistance training, an electronic measuring device for real-time measuring heart rate and respiratory function can be installed on the loop 17, so that the user can adjust the resistance according to his own resistance training situation.

[0043] An elastic force generating device 18 that provides a reverse resistance to the pulling member 13 when the human body stretches the pulling member 13 is provided in the inner cavity 1, and the elastic force generating device is fixed on the mounting plate 5. Specifically, the elastic force generating device 18 includes symmetrically arranged spring bodies 19 that generate elastic bending forces through bending deformation when the human body stretches the pulling member 13. As is well known, the calculation formula for elastic force is F = kx, where F is the magnitude of the elastic force, k is the spring stiffness coefficient, and x is the deformation amount of the spring (i.e., the elongation or compression amount of the spring). The stiffness coefficient kk is determined by the material of the spring, the length of the spring, and the thickness of the spring wire, and the deformation amount x is the difference between the current length and the original length of the spring. The force generated when the spring bends is a bending moment. The bending moment is a measure of the bending effect of a force on an object and is usually expressed as the force multiplied by the moment arm (the distance between the point of application of the force and the point of force application). When forces are applied to both ends of the spring to bend it, these forces generate bending moments, causing the spring to bend. The calculation formula for the bending moment is prior art and will not be described in detail here. That is to say, the present invention utilizes the fact that when the spring body 19 is stretched, it bends to generate a bending moment, and at the same time, while the spring body 19 is bending, it is continuously stretched and elongated to generate a tensile force, and the superposition of the bending moment and the tensile force generates the resistance required by the present invention. Since the elastic force generated by the spring body 19 is determined on the one hand by the material and thickness of the spring body 19 itself, and on the other hand by the moment arm or the elongation distance, in order to enable the spring body 19 to generate a greater resistance to the greatest extent in the box body 2 with limited space and provide more resistance options for the user, the two spring bodies 19 are inclined in opposite directions along the pulling member 13, as Figure 2 shown. The setting of this structure can endow the spring body 19 with greater deformation (bending + elongation) ability. At the same time, a fan-shaped accommodating area 20 for accommodating the bending deformation and elongation of the spring body 19 is formed in the inner cavity between the spring body 19 and the pulling member 13, which also provides sufficient deformation space for the spring body 19. As Figure 8 shown.

[0044] Often in resistance training, the resistance required by the user needs to be between 5 pounds - 10 pounds, or between 15 - 20 pounds. The fixed resistance value cannot meet the needs of the user at this time. Excessive resistance cannot complete the Baduanjin movements, resulting in movement deformation or even injury, while too little resistance has a poor resistance training effect. This has become a common phenomenon. Therefore, in order to solve this problem and achieve the purpose of fine-tuning the resistance to gradually increase or decrease and meet the continuous adjustment of the resistance magnitude, an elastic force adjusting device 21 for continuously adjusting the reverse resistance magnitude generated by the spring body 19 is provided in the box body 2, and the elastic force adjusting device 21 is fixed on the mounting plate 5. Specifically, as Figure 2-3As shown, the elastic force adjusting device 21 includes a support rod 22 arranged parallel to the axis of the spring body 19. A adjusting block 23 is arranged on the spring body 19, which is slidably connected to the support rod 22 and is used to adjust the bending length of the spring body 19 and fix the spring body 19 in a bent state, and a driving mechanism 24 for driving the adjusting block 23 to slide along the length direction of the support rod 22.

[0045] As Figure 4-6 shown, the support rod 22 includes a rod body 25, and a chute 26 slidably engaged with the adjusting block 23 is formed in the rod body 25 along the length direction of the rod body 25. The adjusting block 23 is composed of a sliding end 27 slidably connected to the support rod 22 and a limiting and fixing end 28 slidably engaged with the surface of the spring body 19. A sliding hole 29 allowing the spring body 19 to pass through is formed in the limiting and fixing end 28, and a threaded hole 30 threaded with a threaded rod 33 is formed between the sliding end 27 and the limiting and fixing end 28 for driving the adjusting block 23 to slide along the surface of the spring body 19. Since the principle of the present invention is to generate bending moment force and elastic tensile force through the bending and elongation of the spring body 19 to provide resistance for the pulling rope, the adjusting block 23 plays a role that when the spring body 19 bends and elongates, it can be clamped at the pitch position between adjacent two turns of the spring on the surface of the spring body 19 through the edge of the sliding hole 29, thereby preventing the spring inside the sliding hole 29 from continuing to bend and elongate. At the same time, in order to more precisely control the output of the resistance and avoid excessive bending and elongation of the spring body 19, an elastic layer 31 for fixing the spring body 19 in a 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 bends, the elastic layer 31 near the top position of the sliding hole 29 is squeezed, providing elastic resistance and friction force to the spring body 19, and further providing assistance for preventing the excess spring from protruding from the sliding hole 29.

[0046] Since the spring body 19 will apply a reaction force to the adjusting block 23 when bending and elongating, and the adjusting block 23 is slidably connected to the support rod 22, the spring body 19 will indirectly transfer the tensile force to the support rod 22 when bending. Therefore, in order to enhance the connection strength between the adjusting block 23 and the support rod 22 and ensure the flexibility of sliding at the same time, the chute 26 is processed into a dovetail groove structure, and the sliding end 27 is a dovetail tenon structure slidably engaged with the dovetail groove. The dovetail groove structure provides a stable lateral 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 outside of the support rod 22 to improve the firmness of the support rod 22 and the mounting disc 5.

[0047] The driving mechanism 24 of the present invention includes threaded rods 33 respectively threadedly connected to two adjusting blocks 23, and a driving gear 34 that drives the two threaded rods 33 to rotate synchronously to drive the adjusting blocks 23 to slide up and down along the support rod 22 synchronously. Driven gears 35 are respectively arranged on the two threaded rods 33, and both driven gears 35 are engaged with the driving gear 34. The knob 9 is rotationally connected to the driving gear 34 inside the box body 2. When adjusting the resistance, by rotating the knob 9, the driving gear 34 can be driven to rotate, thereby driving the two driven gears 34 to rotate synchronously, driving the threaded rods 33 to rotate, and the adjusting block 23 slides along the spring body 19 under the drive of the threaded rod 33. By adjusting the distance between the top of the spring body 19 and the adjusting block 23, the output of different resistances is achieved. The present invention can perform traction resistance exercises with a single arm or a single hand, or both arms simultaneously, and the use process is flexible and convenient.

[0048] Regarding the test results, in the study on the effects of elastic band resistance training on bone density, lower limb muscle strength, and balance ability in postmenopausal osteoporosis, the applicant selected 66 postmenopausal osteoporosis patients admitted to the 971st Naval Hospital from January 2020 to January 2023 as the research objects, and divided them into a control group and an experimental group of 33 cases each according to the random number table method. Methods: The control group performed conventional Baduanjin training, and the experimental group added the training device of the present invention on this basis for training (the traction rope and the fixed rope were 6 mm in diameter and 3 m long non-elastic nylon ropes, and the device output resistance was 6.6 pounds). The training period was 6 months, and the changes in the visual analogue scale (VAS) score of low back and back pain, bone mineral density (BMD) of the lumbar spine and femoral neck, lower limb muscle strength, and balance ability before and after treatment in the two groups were observed. Results: The VAS scores of both groups of patients were significantly reduced after treatment (P < 0.05), and the decrease in the experimental group was more obvious. There was no significant difference in BMD between the two groups, but the BMD values of the lumbar spine (L1-4) in both groups increased before and after treatment (P < 0.05). The peak knee extension and flexion torques of the experimental group at angular velocities of 0° / s and 60° / s were significantly higher than those of the control group (P < 0.05). The balance ability assessments (Timed Up and Go Test (TUG), Berg Balance Scale (BBS)) showed that both groups were significantly improved after treatment, and the effect of the experimental group was more prominent (P < 0.05).

[0049] It can be seen that because the resistance output by the training device of the present invention can reach precise control in the maximum deformation (bending + elongation) state, the training device of the present invention combined with Baduanjin training, through appropriate and accurate resistance selection, compared with traditional elastic band Baduanjin training, significantly reduced the low back and back pain of patients, significantly improved lower limb muscle strength and balance ability, increased bone density, and had a positive preventive and therapeutic effect on postmenopausal osteoporosis patients, and had practical popularization and application value in the field of rehabilitation medicine.

[0050] Certainly, the above description is not a limitation of the present invention, nor is the present invention limited to the above examples. Those of ordinary skill in the art, within the scope of the essence of the present invention, any changes, modifications, additions or substitutions should fall within the protection scope of the present invention.

Claims

1. A resistance training device for Ba Duan Jin with continuously adjustable tension, characterized in that: The invention comprises a box body with an inner cavity, a connecting component extending outward from the box body and used for fixing the box body when in use, and a pulling component symmetrically extending outward from the connecting component and used for connecting the box body to the hand, wrist or arm of a human body, an elastic force generating device providing reverse resistance to the pulling component when the human body stretches the pulling component, and an elastic force adjusting device for continuously adjusting the magnitude of the reverse resistance are arranged in the inner cavity, and the elastic force adjusting device is connected to the elastic force generating device.

2. The resistance training device with continuously adjustable tension Ba Duan Jin according to claim 1 is characterized by: The elastic force generating device comprises symmetrically arranged spring bodies which generate elastic bending force by bending and deforming 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.

3. The resistance training device with continuously adjustable tension of Ba Duan Jin according to claim 2 is characterized by: The elastic force adjustment device includes a support rod arranged parallel to the axis of the spring body, an adjustment block slidably connected to the support rod for adjusting the bending length of the spring body and fixing the spring body in a bent state, and a driving mechanism for driving the adjustment block to slide along the length direction of the support rod.

4. The tension-continuously adjustable resistance Ba Duan Jin training device according to claim 3 is characterized by: The driving mechanism includes threaded rods respectively threadedly connected to the two adjusting blocks, and a driving gear that drives the two threaded rods to rotate synchronously and drives the adjusting blocks to slide up and down along the support rod synchronously. Driven gears are respectively arranged on the two threaded rods, and the two driven gears are meshed with the driving gear.

5. The tension-continuously adjustable resistance Ba Duan Jin training device according to claim 3 is characterized by: The support rod comprises a rod body, and a slide groove which is slidably matched with the adjustment block is provided on the rod body along the length direction of the rod body, and the slide groove is a dovetail groove.

6. The tension-continuously adjustable resistance Ba Duan Jin training device according to claim 4 is characterized by: The adjustment block consists of a sliding end slidably connected to the support rod and a limiting fixed end slidably matched with the surface of the spring body. A sliding hole allowing the spring body to pass through is provided on the limiting fixed end. A screw hole that is threadably matched with the threaded rod and is used to drive the adjustment block to slide along the surface of the spring body is provided between the sliding end and the limiting fixed end.

7. The tension-continuously adjustable resistance Ba Duan Jin training device according to claim 6 is characterized by: The inner wall of the sliding hole is covered with an elastic layer for fixing the spring body in a bent state.

8. The tension-continuously adjustable resistance Ba Duan Jin training device according to claim 1 is characterized by: The inner wall of the box body is provided with a skeleton structure for improving the strength of the box body. A mounting plate is provided in the inner cavity. The mounting plate is fixed to the skeleton structure through a plurality of supporting members welded on the skeleton structure. The elastic force generating device and the elastic force adjusting device are both fixed on the mounting plate.

9. The resistance training device with continuously adjustable tension Ba Duan Jin according to claim 2 is characterized by: The pulling component 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 to the top of the spring body, the free end extends out of the box body, and a ring is provided at the free end for connecting the pulling rope to the hand, wrist or arm of the human body. The connecting component includes a fixing rope connected to the box body at one end, and a clamping piece is provided at the other end of the fixing rope for connecting the fixing rope to a desired height position.

10. The tension-continuously adjustable resistance Ba Duan Jin training device according to claim 1 is characterized by: The surface of the box body is provided with a marking plate for assisting in adjusting a specific value of the elastic force, and a knob for selecting a specific value, and the knob is rotatably connected to the elastic force adjusting device in the box body.

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