基于三室动力学模型的髋、膝和踝关节等张肌耐力疲劳建模  

Modelling of Endurance Fatigue in Isotonic Muscles of the Hip,Knee and Ankle Based on Three-Compartment Kinetic Model

作　　者：张陈 周子健 冉令华[3,4] 呼慧敏[3,4] 张欣[3,4] 徐红旗[1] 史冀鹏[1] ZHANG Chen;ZHOU Zijian;RAN Linghua;HU Huimin;ZHANG Xin;XU Hongqi;SHI Jipeng(Research Centre for Assessment and Enhancement of Athletic Ability,School of Physical Education and Sports,Northeast Normal University,Changchun 130024,China;School of Instrumentation Science and Electrical Engineering,Jilin University,Changchun 130061,China;Ergonomics Laboratory,China National Institute of Standardization,Beijing 100191,China;SAMR Key Laboratory of Human Factors and Ergonomics,China National Institute of Standardization,Beijing 100820,China)

机构地区：[1]东北师范大学运动能力测评与提升研究中心,长春130024 [2]吉林大学仪器科学与电气工程学院,长春130061 [3]中国标准化研究院人类工效学实验室,北京100191 [4]中国标准化研究院国家市场监管重点实验室(人因与工效学),北京100820

出　　处：《医用生物力学》2025年第1期163-170,共8页Journal of Medical Biomechanics

基　　金：国家重点研发计划项目(2023YFF0615902);国家市场监管重点实验室(人因与工效学)开放基金(2023SYSKF02002);国家市场监管总局科技计划项目(2023MK192);中央基本科研业务费项目(522023Y-10381)。

摘　　要：目的 建立50%等长峰值力矩(isometric peak torque, IPT)下髋、膝和踝关节等张肌耐力三室动力学疲劳模型,为生物力学和运动科学等领域的仿真负荷评价提供理论基础。方法 分别测量40名男大学生髋、膝和踝关节的IPT后,再以50%IPT进行至力竭的下肢三关节等张肌耐力测试。同步采集下肢主要肌群的肌电和保持时间(endurance time, ET)。验证以往研究推荐的疲劳(fatigue,F)和恢复(recovery,R)参数所建立模型获得的ET和实验ET值的差异,再通过实验ET值和网格搜索的方法匹配合适的F和R参数,以建立正确的三室动力学模型。结果 髋、踝关节ET显著大于膝关节(P<0.001);以往研究推荐参数所建立模型获得的ET显著大于实验测得ET (P<0.001),对应的均方根误差(root mean squared error, RMSE)和平均相对误差(mean relative error, MRE)数值较大;网格搜索法匹配到下肢三关节等张肌耐力测试的三室模型F和R参数,新建立模型获得ET与实验ET差异无统计学意义(P>0.05)。结论 所建立模型能够作为同类活动负荷评估的间接测量工具。Objective To develop a three-compartment kinetic fatigue model for the isometric muscle endurance of the hip,knee,and ankle joints at 50%IPT(isometric peak torque),so as to provide a theoretical basis for simulation-based assessments and load evaluations in biomechanics and sports science.Methods The IPT of the hip,knee,and ankle joints was measured in 40 male university students.Isometric endurance tests were then performed on all three joints at 50%IPT until exhaustion.Electromyography data and endurance time(ET)of major lower limb muscles were collected concurrently.The differences between ETs predicted by models based on previously recommended F and R parameters and actual ETs were analyzed.Subsequently,experimental ETs were used in a grid search to optimize F and R parameters,allowing for the development of an accurate three-compartment kinetic model.Results The ET of the hip and ankle joints was significantly longer than that of the knee joint(P<0.001).Models using previously recommended F and R parameters overestimated ET,with significantly higher predicted values than experimentally measured ET(P<0.001),as well as elevated root mean squared error(RMSE)and mean relatvie error(MRE)values.The grid search successfully identified F and R parameters for the three-compartment model in isometric endurance tests of lower limb joints,with no statistical difference between model-predicted ET and experimental ET(P>0.05).Conclusions The developed model in this study can serve as an indirect measurement tool for evaluating load in similar activities.

关 键 词：三室疲劳模型 负荷评价 等张测试 肌耐力 疲劳 

分 类 号：R318.01[医药卫生—生物医学工程]