模拟增加单关节部肌肉强度 减少在行走过程中膝盖压缩力的第一个峰值
Elisa Jolas1, Morten Bilde Simonsen2, Michael Skipper Andersen2
1Department of Materials and Production, Aalborg University, Aalborg East DK-9220, Denmark; Department of Sport Sciences and Physical Education, Ecole Normale Supérieure de Rennes, Bruz 35170, France; Center for Mathematical Modeling of Knee Osteoarthritis, Aalborg University, Fibigerstræde 14 and 16, Aalborg East DK-9220, Denmark.
Journal of biomechanical engineering
|June 20, 2023
概括
这项研究发现,加强部肌肉,如部中部和最大肌肉,可以减少走路时膝盖的接触力. 这种减少在具有特定部和膝盖运动模式的个体中更有效,这表明行走策略的作用.
科学领域:
- 生物力学 生物力学
- 整形外科 整形外科 整形外科
- 运动学 运动学
背景情况:
- 膝关节关节炎 (OA) 是一种退行性关节疾病,其特点是疼痛和功能减弱.
- 在行走过程中减少压力膝盖接触力 (KCF) 是一种减缓OA进展和缓解症状的潜在策略.
- 以前的研究表明,补偿部曲/延伸时刻可能会降低早期姿势 (KCFp1) 期间的峰值KCF.
研究的目的:
- 调查单关节部肌肉能否达到减少KCFp1.1.所需的部曲/延伸时刻补偿.
- 探索不同步行策略对这种补偿机制的影响.
- 确定单独或联合加强关节和最大关节是否可以降低KCFp1.1.
主要方法:
- 收集了24名健康参与者的步行数据,以创建肌肉骨模型.
- 模拟了五种负载情况:正常行走,100%的部运动时刻补偿,以及三种情况,其中 gluteus medius 和 maximus 的同位体强度增加 (30%).
- 集群分析确定了基于早期姿势中的部和膝盖时刻的独特步行策略.
主要成果:
- 当部肌肉补偿部瞬间时,观察到KCFp1的显著减少,特别是在表现出较高部和较低膝盖瞬间的子组中.
- 最大的KCFp1减少发生在部曲/延伸时刻最高的组和膝盖曲/延伸时刻最低的组中.
- 这种KCFp1的减少归因于从双关节腿筋的力量产生转移到加强的单关节 gluteus medius 和 maximus.
结论:
- 单关节部肌肉,特别是部中和最大肌肉,可以有助于减少KCFp1.1.
- 这种策略的有效性取决于个体的步行策略,强调了部和膝关节关节协调的重要性.
- 针对性地加强部肌肉可能提供一种非侵入性的方法,通过减少运动期间关节负荷来管理膝关节关节炎.
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