姿势控制和步行动力学在多方向步行启动中的方向特定调制
Kuanting Chen1, Adam C King1,2
1Department of Kinesiology, Texas Christian University, Fort Worth, TX, USA.
Journal of applied biomechanics
|August 19, 2024
概括
步行启动 (GI) 方向和障碍物显著改变人们如何调整他们的姿势和步伐. 侧面GI方向减少了运动,而障碍物需要进行特定的清除调整,影响防摔策略.
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
- 运动学 运动学
背景情况:
- 适应步行启动 (GI) 对日常活动至关重要,受环境和任务限制的影响.
- 了解预期姿势调整 (APA) 和胃肠道的步进动力学对于生活质量和跌倒预防至关重要.
研究的目的:
- 研究胃肠道方向,障碍物存在和腿部优势对APA和步行动力学的影响.
- 分析方向变化和障碍物如何在步行启动过程中修改运动策略.
主要方法:
- 14名健康的年轻人进行了四个方向的胃肠道检查 (向前,中间45°,侧45°,侧90°).
- 在GI任务中,障碍物存在和腿部占主导地位各不相同.
- 测量包括压力中心 (CoP) 位移,APA持续时间,步程距离,摆动腿速度和步程持续时间.
主要成果:
- 侧面GI方向显示了CoP位移,APA持续时间,步程距离和摇摆腿速度的下降趋势.
- 障碍物促使APAs的修改和步进动力学与障碍物清除运动相一致.
- 主导腿部GI导致更长的步骤持续时间和增加的运动可变性,特别是在中间45°GI.
结论:
- 地理标志方向和障碍物谈判显著影响APA和步进动力学.
- 运动模式适应方向要求和避开障碍,影响推进力产生和运动执行.
- 调查结果为制定有针对性的跌倒预防和步行康复策略提供了洞察力.
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