Simulation study of musculoskeletal system of lower limbs based on synergistic effects of stress and electromagnetic fields
10.19745/j.1003-8868.2024168
- VernacularTitle:基于应力场与电磁场协同治疗技术的下肢肌肉骨骼系统仿真研究
- Author:
Ruo-Bing LIU
1
,
2
;
Qi-Lin PEI
;
Xi SHAO
;
Dan WANG
;
Yu-Lan TIAN
;
Ze-Dong YAN
;
Da JING
Author Information
1. 西安工业大学电子信息工程学院,西安 710021
2. 空军军医大学军事生物医学工程学系,西安 710032
- Keywords:
stress field;
pulsed electromagnetic field;
collaborative therapy;
musculoskeletal system of lower limbs;
finite element analysis
- From:
Chinese Medical Equipment Journal
2024;45(9):21-26
- CountryChina
- Language:Chinese
-
Abstract:
Objective To apply a COMSOL-based finite element analysis method to investigating the electric field effects produced by the human lower limb musculoskeletal system under the synergistic effects of stress field and electromagnetic field.Methods Firstly,a 3D human body model was constructed by Maxon Cinema 4D R21 software,and then imported into COMSOL 6.1 software in STL format.Secondly,an electromagnetic field intervention and stress loading model for the left lower limb of the human body was designed and constructed,in which 15 Hz quasi-pulse group current signals were used for electromagnetic field excitation and the stress field was realized by applying a vibration load with an average compressive force of about 90 N/cm2 to the left foot of the human body.Finally,the electromagnetic properties of human tissue were simulated by numerical simulation,and then the effects of stress field or elecromagnetic field or combined stress field and electromagnetic field on human bioelectric field were compared.Results Simulation results showed that the electric field intensity peaked at the leg joints under both electromagnetic and stress fields acting alone or synergistically,the bioelectric field intensity generated by the human body was related to the distance from the exogenous excitation loading location,and the electric field generated under synergistic action was equivalent to the linear superposition of the bioelectric field in the tissue induced by the electromagnetic field and the stress field acting alone.Conclusion Data supplement is provided for predicting bioelectric field changes within the musculoskeletal tissue,and theoretical foundation is laid for the development and application of multi-physics field synergistic intervention therapy for treating the disorders of the lower limb musculos-keletal system.[Chinese Medical Equipment Journal,2024,45(9):21-26]
