在分裂皮带适应过程中,探索与年龄相关的差异,探讨空间和时间对阶段长度不对称的贡献之间的关系
Patrick G Monaghan1, William M Murrah2, Kristina A Neely1
1School of Kinesiology, Auburn University, Auburn, AL, USA.
Experimental brain research
|October 24, 2024
概括
年长的成年人与年轻的成年人不同地适应他们的步态,使用较少的时间策略,但保持类似的整体步态适应性. 这项研究澄清了与年龄相关的步态变化,并为预防跌倒的干预提供了信息.
科学领域:
- 生物力学 生物力学
- 老年学是一门学科.
- 神经科学是一个神经科学.
背景情况:
- 步行适应性对于在不断变化的环境中进行导航和预防跌倒至关重要,特别是在老年人中.
- 老年人的步行适应障碍与跌倒风险增加有关.
- 关于老年人步行适应的先前研究已经存在,但在分带跑步机行走过程中,时间和空间策略在步骤长度不对称 (SLA) 中的具体作用需要更多的研究.
研究的目的:
- 调查时间和空间适应策略如何在健康的年轻人和老年人中导致步骤长度不对称 (SLA) 在分带跑步机上行走时.
- 为了比较年轻人和老年人的步行适应率和死亡适应率.
主要方法:
- 19名健康的年轻人和19名健康的老年人参与了这项研究.
- 参与者在分带跑步机上行走,非主导腿的移动速度是主导腿的两倍.
- 重复测量 ANOVA 用于分析SLA的空间和时间贡献,跨适应时期的SLA,以及适应/脱适应率.
主要成果:
- 与年轻人相比,老年人对SLA的时间贡献显著减少 (p=0.02).
- 在SLA的空间贡献中没有发现显著的群体差异 (p=0.08).
- 适应和死亡适应期间的步骤长度不对称,以及适应和死亡适应的速度,在各年龄组之间没有差异.
结论:
- 老年人在步态适应中使用的时间策略较少,但表现出与年轻人相比的整体步态适应能力.
- 这些发现加深了对步态适应机制与年龄相关的差异的理解.
- 这些结果可以指导开发有针对性的干预措施,以提高步行适应性和减少老年人群中跌倒风险.
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