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站立时抓住物体时的姿势稳定:年轻和年长的成年人 (跌倒和不跌倒)

Natalia Madalena Rinaldi¹, Renato Moraes²

¹Biomechanical Analysis of Movement Lab (Bio.Mov), Center of Physical Education and Sports, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil.

Journal of motor behavior

|December 18, 2023

概括

与年轻人相比,老年人,特别是摔倒者,在抓住物体的任务中表现出较低的姿势稳定性 (稳定性边缘). 跌倒的人采取更谨慎的策略来保持平衡.

科学领域:

生物力学生物力学
老年学是一门学科.
发动机控制器的控制器

背景情况:

姿势稳定对于日常活动至关重要,尤其是对老年人来说.
达到和抓住任务挑战姿势控制,增加老年人群的跌倒风险.
在动态任务中了解与年龄相关的姿势控制变化对于预防跌倒至关重要.

研究的目的:

为了研究在伸手和抓住时,通过稳定边缘 (MoS) 测量姿势稳定性.
为了在不同任务难度中比较年轻成年人 (YA),非失败者 (OA) 和失败者 (FOA) 的MoS.
分析年龄和秋季组之间的MoS动态 (最小,最大,时间) 的差异.

主要方法:

45名参与者 (YA,OA,FOA) 完成了伸手和抓住的任务.
六个条件操纵了使用基础稳定性和障碍物的任务难度.
在运动开始和物体接触之间计算了前后 (AP) 和中侧 (ML) 稳定率 (MoS).

主要成果:

较年长的成年人 (OA) 在AP和ML方向上显示的MoS小于年轻的成年人 (YA).
与YA相比,落者 (FOA) 在ML方向呈现较小的最小MoS.
在AP方向上,FOA早些时候有一个最低的MoS,并且采用了比YA更谨慎的策略.

结论:

无论是没有摔倒的人还是摔倒的人,都在站立的伸手抓任务中表现出身体姿势控制受损.
摔倒者采用更谨慎的策略,在抓住之前更早地调整MoS以提高稳定性.
这些发现突出了功能性运动期间动态姿势控制中与年龄相关的和特定于跌倒的变化.

关键词:

衰老的衰老衰老的衰老这是一个双重任务,双重任务.布布布的时间姿势姿势姿势预订时间预订时间

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