Introduction
Bimonthly, started in 1957
Administrator
Shanxi Provincial Education Department
Sponsor
Taiyuan University of Technology
Publisher
Ed. Office of Journal of TYUT
Editor-in-Chief
SUN Hongbin
ISSN: 1007-9432
CN: 14-1220/N
Administrator
Shanxi Provincial Education Department
Sponsor
Taiyuan University of Technology
Publisher
Ed. Office of Journal of TYUT
Editor-in-Chief
SUN Hongbin
ISSN: 1007-9432
CN: 14-1220/N
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Biomechanical Analysis of the Effect of Wearing Orthotic Insoles on the Lower Limbs of Patients with Flatfoot
DOI:
10.16355/j.tyut.1007-9432.20220740
Received:
Accepted:
| Corresponding author | Institute | |
| GUO Yuan | College of Biomedical Engineering， Taiyuan University of Technology |
abstract:
【Purposes】Orthopedic insoles are an effective means of non-surgical correction of flatfoot，but there is no unified view on its rehabilitation mechanism，and most previous studies have focused on the improvement of plantar pressure.【Methods】Firstly，a 3D motion capture system，a force platform and a foot test system were used to test the subjects respectively，to obtain thekinematic and dynamic data of the flatfoot patients' lower limbs when walking naturally，and then Anybody software was used to establish the musculoskeletal model of the subjects and carry out inverse kinetic analysis，to compare and analyse the joint angles of the lower limbs，the ground reaction force，and the changes in parameters such as joint moment and muscle activation，etc. of the lower limbs of the patients with flatfoot when they walked naturally before and after the use of orthopaedic insoles，joint moments and muscle activation during natural walking before and after using orthotic insoles.【Findings】The results show that after wearing the orthopedic insoles，the plantar pressure distribution of flatfoot patients is improved significantly，the ankle joint motion angle changed significantly during the walking cycle，the peak vertical and lateral ground reaction forces became smaller during the support period，and the joint moments and the activation of major muscles in the lower limbs change to different degrees.【Conclusions】This study may provide a valuable reference for the rehabilitation treatment of flatfoot patients in clinic.
Keywords:
flatfoot； orthopedic insoles； gait analysis； kinematics； inverse dynamics;