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Female weightlifting athlete lumbosacral joint biomechanical analysis method based on numerical simulation

A lumbosacral joint, numerical simulation technology, applied in the field of biomedical engineering, can solve problems such as modeling and simulation analysis of lumbosacral joints without female weightlifters, and achieve the effects of ensuring accuracy, optimizing action structure, and improving competitive ability.

Pending Publication Date: 2021-03-12
宋雅伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, the existing technologies represented by these technical solutions have not specifically modeled and simulated the lumbosacral joints of female weightlifters

Method used

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  • Female weightlifting athlete lumbosacral joint biomechanical analysis method based on numerical simulation
  • Female weightlifting athlete lumbosacral joint biomechanical analysis method based on numerical simulation
  • Female weightlifting athlete lumbosacral joint biomechanical analysis method based on numerical simulation

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Embodiment 1

[0062] This embodiment is to determine the target athlete, that is, the first step of the biomechanical analysis method of the lumbosacral joint of female weightlifters based on numerical simulation of the present invention.

[0063] This embodiment includes: selecting some female weightlifters as athletes to be tested; before weightlifting training and after weightlifting training, respectively adopting moiré camera equipment to carry out spine shape tests on each athlete to be tested, and obtaining the results of each athlete to be tested before and after training. Spine morphology data, and based on that data, target athletes for subsequent testing.

[0064] Specifically, the spine shape data includes the curvature of the four physiological curvatures of the spine, the rotation angle of the vertebral body, the deviation angle of the vertebral body, the pelvic tilt distance, the pelvic tilt angle, and the pelvic torsion angle.

[0065] Specifically, the specific process of s...

Embodiment 2

[0071] This embodiment is to establish a weightlifting action model, that is, the second step of the numerical simulation-based biomechanical analysis method for the lumbosacral joint of a female weightlifter of the present invention.

[0072]This embodiment includes: monitoring the whole process of the target athlete's weightlifting, and establishing a weightlifting action model; the specific monitoring content includes: using a moiré camera to monitor the real-time shape of the target athlete's spine during the whole weightlifting process, and obtaining the target athlete's spine. Form real-time data; use the pressure plate instrument to monitor the real-time pressure of the target athlete's plantar during the whole weightlifting process, and obtain the real-time data of the target athlete's plantar pressure; use the 3D image system to monitor the real-time action of the target athlete during the whole weightlifting process, and Obtain the real-time action data of the target ...

Embodiment 3

[0083] This embodiment is the establishment of a finite element model of the lumbosacral joint and numerical simulation analysis, that is, the third step of the numerical simulation-based biomechanical analysis method of the female weightlifter's lumbosacral joint of the present invention.

[0084] This embodiment includes: performing a static spine CT scan on the target athlete, and establishing a finite element model of the lumbosacral joint based on the scan results; according to the real-time data of the spine shape, plantar pressure real-time data, real-time action data, and weightlifting obtained in the second step Action model, determine the boundary conditions of the weightlifting load case of the lumbosacral joint finite element model, and then perform numerical simulation analysis and obtain the analysis results.

[0085] Specifically, the scan results of a static spine CT scan are a series of continuous Dicom format pictures.

[0086] The specific process of establi...

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Abstract

The invention relates to a female weightlifting athlete lumbosacral joint biomechanical analysis method based on numerical simulation; the method comprises the steps: selecting a plurality of female weightlifting athletes as to-be-tested athletes, and screening a target athlete according to spine form data; monitoring in the whole weightlifting process of the target athlete, and establishing a weightlifting action model; conducting static spine CT scanning on the target athlete, and establishing a finite element model of the lumbosacral joint according to a scanning result, finally performingnumerical simulation analysis to generate an analysis result. Modeling and numerical simulation analysis are specially carried out on lumbosacral joints of female weightlifting athletes to obtain stress change conditions of anatomical structures such as joints, muscles and soft tissues in the weightlifting movement process, so that structural optimization is carried out on weightlifting actions ofthe female weightlifting athletes, the competitive ability is improved, movement injuries are avoided, the safety of the female weightlifting athletes is improved, and guidance opinions are providedfor exercise rehabilitation.

Description

technical field [0001] The invention relates to a numerical simulation-based biomechanical analysis method for the lumbosacral joint of a female weightlifter, belonging to the field of biomedical engineering. Background technique [0002] According to the applicant's knowledge, in weightlifting competitions, whether it is snatch or clean and jerk, athletes use "leg-waist-upper-arm-forearm" as the kinematic chain, and use the coordinated contraction of various muscle groups to pull up the barbell. Among them, the lumbosacral joint, as the core part of weight-lifting force transmission, is not only a fulcrum that bears long-term compressive stress, but also a buffer structure that transmits the load to the pelvis and lower limbs. [0003] In ordinary daily activities, the spine usually supports a vertical load of 500N-1000N, which is more than twice the body weight, and can reach up to 5000N with the lifting of heavy objects, which is close to 50% of the final failure load. H...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G16H20/30G16H50/20G16H50/50G06T17/20A61B6/03A63B21/06A63B69/00
CPCG16H20/30G16H50/20G16H50/50G06T17/20A61B6/03A63B21/06A63B69/00G06T2200/08G06T2210/32G06T2210/41
Inventor 宋雅伟赵伟吉彦廷
Owner 宋雅伟
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