Hebei University of Technology, Tianjin, China.
Tianjin Key Laboratory of Power Transmission and Safety Technology for New Energy Vehicles, Hebei University of Technology, Tianjin, China.
Comput Methods Biomech Biomed Engin. 2023 Oct-Dec;26(16):1966-1979. doi: 10.1080/10255842.2022.2162338. Epub 2022 Dec 29.
This study aims to determine the influence of the hip flexion angle on the injury trends of lower limbs. An impact model was established using a hybrid human body model and an accurate vehicle model. Simulations were performed in two boundary environments of 25 and 40% overlap impacts under different hip flexion angles. The analysis of the dynamic responses indicated that the hip flexion angle significantly affected the injury trends. The maximum femur index of different overlaps was all found at the minimum hip angle, except for the left femur at 25% overlap rate. Meanwhile, the maximum acetabular stress was all found at the minimum hip angle (approximately 0.09-0.20 GPa). This study provides mechanistic insights into the lower limb injuries associated with complex human postures.
本研究旨在确定髋关节弯曲角度对下肢损伤趋势的影响。使用混合人体模型和精确车辆模型建立了冲击模型。在不同髋关节弯曲角度下，在 25%和 40%重叠冲击的两个边界环境下进行了模拟。动态响应分析表明，髋关节弯曲角度对损伤趋势有显著影响。不同重叠率的最大股骨指数均在最小髋关节角度处达到最大，除了 25%重叠率时的左侧股骨。同时，最大髋臼应力均在最小髋关节角度处达到最大（约 0.09-0.20 GPa）。本研究为与复杂人体姿势相关的下肢损伤提供了机制见解。
