支的底部宽度在坐时对姿势控制和脚负荷对称性的影响 - - 初步研究
Justyna Kędziorek1, Michalina Błażkiewicz1
1Józef Piłsudski University of Physical Education in Warsaw, Warsaw, Poland.
Acta of bioengineering and biomechanics
|February 5, 2024
概括
更宽的坐会降低稳定性和姿势控制,增加对主导肢体的压力. 这种宽姿势 (WS) 需要比窄 (NS) 和部姿势 (HS) 更复杂的姿势调整.
科学领域:
- 生物力学 生物力学
- 人类运动科学科学 人类运动科学
- 运动生理学 运动生理学
背景情况:
- 适当的腰表现依赖于对称的脚负荷和有效的姿势控制.
- 了解姿势宽度如何影响这些因素对于伤害预防和性能优化至关重要.
研究的目的:
- 研究不同式姿势宽度 (狭窄,部和宽) 对姿势控制的影响.
- 为了评估姿势宽度对坐时足部负荷对称性的影响.
主要方法:
- 三十名健康的参与者进行了三种姿势宽度的坐:狭窄 (NS),部 (HS) 和宽 (WS).
- 对于每个姿势宽度,测量了姿势控制和脚负荷对称性.
主要成果:
- 与NS和HS相比,宽姿势 (WS) 坐导致压力中心 (CoP) 路径长度,摆动速度和Area95显著增加.
- WS显著影响了脚负荷对称性,姿势控制策略 (LyE),不规则性 (SampEn) 和CoP时间序列复杂性 (FD).
- 越来越多的支基础与更高的不对称指数相关.
结论:
- 宽 (WS) 的特点是稳定性降低,需要更复杂的姿势控制和灵活性.
- 执行广泛的腰显著地将压力分布转向主导肢体,表明负荷模式发生了变化.
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