Study on the Prediction Method of Fall Risk of Lower Limb Muscle Strength
It aimed to analyze the role of lower limb muscles in human walking and falling in the paper,i-dentified the muscles that have a significant impact on walking stability,and provided a basis for fall pre-diction and signal data collection locations.First,a human musculoskeletal model was established,and ex-perimental data on the gait,backward falls,and forward falls of individuals with mobility limitations were recorded using the Vicon three-dimensional infrared motion capture and analysis system and the AMTI 3 D force platform.Subsequently,inverse kinematic analysis and static optimization algorithms,in conjunction with OpenSim simulation software were used to calculate the distribution of redundant muscle forces in the lower limbs during walking and falling.Finally,data analysis was conducted.The research findings indica-ted that through the simulation model,a quantitative analysis of lower limb muscle force distribution dur-ing walking and falling was performed,allowing for the quantification of changes in the strength of individ-ual lower limb muscles during walking and falling.The results suggested that the optimal locations for col-lecting electromyographic signals are the lateral thigh muscles and the gastrocnemius muscle.It provides a biomechanical basis for fall prediction and rehabilitation guidance and lays the foundation for further ex-ploration of the biomechanical characteristics of the hip,knee,and ankle joints,as well as the design of human lower limb rehabilitation robots.
human body modelingskeletal muscle simulationmuscle strength calculationfall risk
万方数据
维普
