A human body maximum force testing and analysis system

Abstract

The present invention belongs to the technical field of physical fitness assessment, and specifically is a human maximum force testing and analysis system, comprising a base, a frame, a lower limb force sensor, an upper limb force sensor, a force rod, a force rod position adjustment device, a synchronous acquisition card and an analysis system. The frame is arranged on the top of the base, the lower limb force sensor is arranged on the top surface of the base, the upper limb force sensor is arranged on the inner side of the frame, the force rod is arranged between the frames, the synchronous acquisition card is respectively arranged on the lower limb force sensor and the upper limb force sensor, the analysis system is arranged on one side of the frame, and the analysis system is electrically connected to the synchronous acquisition card. The structure is reasonable. During use, the original lower limb evaluation system is optimized, and it is innovatively proposed to integrate a measuring device in the frame, add an upper limb force measuring device, and synchronize with the lower limb force platform force measurement signal to ensure the accuracy of data measurement.

Description

Technical Field

[0001] The present invention relates to the technical field of physical fitness assessment, and in particular to a human body maximum force testing and analysis system. Background Art

[0002] Explosive power refers to the ability to generate work per unit time through the force generated by muscle contraction. Taking leg strength as an example, leg strength supports the entire body's weight and is the primary source of power. Leg strength is a crucial evaluation metric for many sports. In rehabilitation medicine, scholars believe that knee injuries are directly linked to poor leg muscle strength, and therefore, strengthening leg strength can help reduce the incidence of knee injuries. Studies have shown that leg strength is influenced by femoral neck bone density, and that good leg strength can reduce the risk of fractures and osteoporosis.

[0003] Leg strength test is a reflection of lower limb muscle strength. The test focuses on knee extension strength and usually measures the maximum isometric contraction strength of the quadriceps femoris. This indicator is generally called maximum leg strength.

[0004] Existing equipment primarily consists of a pull bar and a force platform. The subject steps on the force platform and pulls on a lever with both hands. The force platform collects plantar pressure. This equipment measures the ground reaction force of both feet, generates a ground reaction force curve, and calculates maximum lower limb force parameters. However, the resulting data is inaccurate. Therefore, we propose a novel human maximum force testing and analysis system. Summary of the Invention

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid blurring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0006] In view of the problems existing in the prior art, the present invention is proposed.

[0007] Therefore, the purpose of the present invention is to provide a human maximum force testing and analysis system, which can optimize the original lower limb evaluation system during use, innovatively propose to integrate a measuring device within the framework, add an upper limb force measuring device, and synchronize it with the lower limb force platform force measurement signal to ensure the accuracy of data measurement.

[0008] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0009] A human maximum force testing and analysis system includes a base, a frame, a lower limb force sensor, an upper limb force sensor, a force rod, a force rod position adjustment device, a synchronous acquisition card and an analysis system, wherein the frame is arranged on the top of the base, the lower limb force sensor is arranged on the top surface of the base, the upper limb force sensor is arranged on the inner side of the frame, the force rod is arranged between the frames, the synchronous acquisition card is respectively arranged on the lower limb force sensor and the upper limb force sensor, and the analysis system is arranged on one side of the frame, and the analysis system is electrically connected to the synchronous acquisition card.

[0010] As a preferred solution of the human body maximum force testing and analysis system described in the present invention, a force rod position adjustment device is provided on the frame, and the force rod position adjustment device is a weight block with a hole.

[0011] As a preferred solution of the human maximum force testing and analysis system described in the present invention, a motion capture system is also provided on the top of the frame, the motion capture system is a panoramic camera, and the motion capture system is electrically connected to the analysis system.

[0012] As a preferred solution of the human body maximum force testing and analysis system described in the present invention, the analysis system includes a display screen, a data receiving module, a mechanical model calculation module and an analysis module.

[0013] As a preferred embodiment of the human body maximum force testing and analysis system of the present invention, the system comprises the following steps:

[0014] Step 1: Stand on the force platform with both feet and adjust the height of the force rod to the appropriate position;

[0015] Step 2: Grip the force rod with both hands and pull it upwards. The force sensors of the lower limbs and upper limbs will collect force signals synchronously.

[0016] Step 3: The analysis system obtains the mechanical signals of the upper and lower limbs, and displays the isometric force curves and force characteristic values ​​of the upper and lower limbs of the model through the display terminal;

[0017] Step 4: Use motion capture equipment to obtain the athlete's three-dimensional posture information, input the posture data and boundary force (upper limb and lower limb sensor) data into the model, and calculate key parameters such as waist and back strength, lower limb joints, and muscle strength.

[0018] Compared with the existing technology, the beneficial effects of the present invention are: optimizing the original lower limb evaluation system, innovatively proposing to integrate the measurement device within the framework, adding an upper limb force measuring device, and synchronizing it with the lower limb force platform force measurement signal; measuring the ground reaction force is a direct measurement of the lower limb strength, while the upper limb measurement device directly reflects the upper limb pulling force; after having all the external force conditions of the body, the body force distribution can be calculated through mechanical modeling, so as to better evaluate the strength of the upper and lower limbs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort. Among them:

[0020] Figure 1 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0024] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0025] Example 1

[0026] A human maximum force testing and analysis system includes a base, a frame, a lower limb force sensor, an upper limb force sensor, a force rod, a force rod position adjustment device, a synchronous acquisition card and an analysis system, wherein the frame is arranged on the top of the base, the lower limb force sensor is arranged on the top surface of the base, the upper limb force sensor is arranged on the inner side of the frame, the force rod is arranged between the frames, the synchronous acquisition card is respectively arranged on the lower limb force sensor and the upper limb force sensor, and the analysis system is arranged on one side of the frame, and the analysis system is electrically connected to the synchronous acquisition card.

[0027] Specifically, a force rod position adjustment device is provided on the frame, and the force rod position adjustment device is a weight block with a hole.

[0028] Specifically, a motion capture system is also provided on the top of the frame. The motion capture system is a panoramic camera, and the motion capture system is electrically connected to the analysis system.

[0029] Specifically, the analysis system includes a display screen, a data receiving module, a mechanical model calculation module and an analysis module.

[0030] Specifically, the method includes the following steps:

[0031] Step 1: Stand on the force platform with both feet and adjust the height of the force rod to the appropriate position;

[0032] Step 2: Grip the force rod with both hands and pull it upwards. The force sensors of the lower limbs and upper limbs will collect force signals synchronously.

[0033] Step 3: The analysis system obtains the mechanical signals of the upper and lower limbs, and displays the isometric force curves and force characteristic values ​​of the upper and lower limbs of the model through the display terminal;

[0034] Step 4: Use motion capture equipment to obtain the athlete's three-dimensional posture information, input the posture data and boundary force (upper limb and lower limb sensor) data into the model, and calculate key parameters such as waist and back strength, lower limb joints, and muscle strength.

[0035] Working principle: During the use of this invention, the original lower limb evaluation system is optimized, and it is innovatively proposed to integrate a measuring device within the framework, add an upper limb force measuring device, and synchronize it with the lower limb force platform force measurement signal; measuring the ground reaction force is a direct measurement of the lower limb strength, while the upper limb measurement device directly reflects the upper limb pulling force; after having all the external force conditions of the body, the body force distribution can be calculated through mechanical modeling, so as to better evaluate the strength of the upper and lower limbs.

[0036] Although the present invention has been described above with reference to embodiments, various modifications may be made thereto and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as there are no structural conflicts, the various features of the embodiments disclosed herein may be combined with each other in any manner, and the omission of an exhaustive description of such combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A human body maximum force testing and analysis system, characterized by: It includes a base, a frame, a lower limb force sensor, an upper limb force sensor, a force rod, a force rod position adjustment device, a synchronous acquisition card and an analysis system. The frame is arranged on the top of the base, the lower limb force sensor is arranged on the top surface of the base, the upper limb force sensor is arranged on the inner side of the frame, the force rod is arranged between the frames, the synchronous acquisition card is respectively arranged on the lower limb force sensor and the upper limb force sensor, and the analysis system is arranged on one side of the frame, and the analysis system is electrically connected to the synchronous acquisition card.

2. A human body maximum force testing and analysis system according to claim 1, characterized in that: The four corners of the bottom of the base are provided with fixing devices, which are fixing bolts, and the top of the base is provided with matching screw holes.

3. The human body maximum force testing and analysis system according to claim 1, characterized in that: The frame is provided with a force rod position adjustment device, and the force rod position adjustment device is a weight block with a hole.

4. The human body maximum force testing and analysis system according to claim 1, characterized in that: A motion capture system is also provided on the top of the frame. The motion capture system is a panoramic camera, and the motion capture system is electrically connected to the analysis system.

5. The human body maximum force testing and analysis system according to claim 1, characterized in that: The analysis system includes a display screen, a data receiving module, a mechanical model calculation module and an analysis module.

6. A method for using a human body maximum force testing and analysis system according to any one of claims 1 to 5, characterized in that: The method comprises the following steps: Step 1: Stand on the force platform with both feet and adjust the height of the force rod to the appropriate position; Step 2: Grip the force rod with both hands and pull it upwards. The force sensors of the lower limbs and upper limbs will collect force signals synchronously. Step 3: The analysis system obtains the mechanical signals of the upper and lower limbs, and displays the isometric force curves and force characteristic values ​​of the upper and lower limbs of the model through the display terminal; Step 4: Use motion capture equipment to obtain the athlete's three-dimensional posture information, input the posture data and boundary force (upper limb and lower limb sensor) data into the model, and calculate key parameters such as waist and back strength, lower limb joints, and muscle strength.

Images