非线性步态动力学受到健康成年人常见的户外表面和性行为的影响
Jill Emmerzaal1, Patrick Ippersiel2,3, Philippe C Dixon1,2,3
1Department of Kinesiology and Physical Activity, McGill University, Montreal, QC H2W 1S4, Canada.
Sensors (Basel, Switzerland)
|July 12, 2025
概括
人类步行动态适应各种户外地形,影响运动的可预测性和稳定性. 性别影响了这些适应,特别是在斜面上,突出地形和性别在步态研究中的重要性.
科学领域:
- 生物力学和运动控制
- 人类步态分析
- 非线性动力学是一种非线性动力学.
背景情况:
- 人类行走需要不断适应各种环境条件.
- 地形变化对步态的生物力学和动态方面产生重大影响.
- 了解这些适应对于从机器人到康复等领域至关重要.
研究的目的:
- 研究七种不同的户外地形对非线性步态动态的影响.
- 分析表面类型如何影响步态的可预测性,光滑性,对称性和稳定性.
- 探索各种地形对步态反应的潜在性别特异性差异.
主要方法:
- 30名健康的成年人 (14名女性,15名男性) 走在平坦平坦,斜坡 (右/左),卵石,草,斜坡和斜坡的表面上.
- 采用样本 (SE),日志无维冲动 (LDLJ),步骤/步骤规律性和利亚普诺夫指数 (LyEs,LyEl) 的测量方法记录和分析了干部和腿部的加速.
- 统计分析检查了表面类型和性别对这些步态动态参数的影响.
主要成果:
- 在所有参与者中,表面类型显著改变了所有步行动态指标 (SE,LDLJ,对称性,LyE,LyE)
- 斜坡地形降低了运动的可预测性 (SE),而大多数表面降低了光滑性 (LDLJ).
- 卵石和倾斜的表面对步骤对称产生了负面影响,而倾斜的表面则改善了步骤对称. 在倾斜的表面上观察到增加的步态变化 (LyEs),在大多数表面上增加混乱 (LyEl).
- 性别没有显著影响大多数步态度指标,但在斜向右面上发现了SE和步态对称的相互作用,女性表现出不同的反应.
结论:
- 地形类型是人类步行动态的关键决定因素,影响运动复杂性和稳定性.
- 性别特定的与地形的相互作用,特别是在斜坡的表面上,表明了细微的适应.
- 未来的研究和步态分析应用必须考虑环境背景和个体性别差异.
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