高龄老年女性转弯步态期间的步态速度和质心加速度的影响
Effects of gait velocity and center of mass acceleration during turning gait in old-old elderly women.
作者信息
Shin Sun-Shil, Yoo Won-Gyu
机构信息
Department of Rehabilitation Science, The Graduate School, Inje University, Republic of Korea.
Department of Physical Therapy, College of Biomedical Science and Engineering, Inje University, Republic of Korea.
出版信息
J Phys Ther Sci. 2015 Jun;27(6):1779-80. doi: 10.1589/jpts.27.1779. Epub 2015 Jun 30.
[Purpose] This study investigated gait velocity and center of mass acceleration in three directions during square and semicircular turning gait tasks in old-old elderly women. [Subjects] Fifteen community-dwelling, old-old elderly women (≥75 years old) who could walk independently were recruited. [Methods] We measured gait velocity and center of mass acceleration in three directions using an accelerometer during two different turning gait tasks. [Results] The velocity during square turning was significantly slower than that during semicircular turning gait. There were no significant differences between gait tasks with respect to normalized antero-posterior, medo-lateral, or vertical center of mass acceleration. [Conclusion] Changing the direction of travel while walking regardless of turning angle is one of the greatest challenges for balance in old-old elderly people. Furthermore, gait velocity is a useful clinical marker for predicting falls in old-old elderly populations.
[目的] 本研究调查了高龄老年女性在方形和半圆形转弯步态任务中三个方向的步态速度和质心加速度。[对象] 招募了15名能够独立行走的社区高龄老年女性（≥75岁）。[方法] 我们在两种不同的转弯步态任务中使用加速度计测量了三个方向的步态速度和质心加速度。[结果] 方形转弯时的速度明显慢于半圆形转弯步态时的速度。在归一化的前后、内外侧或垂直质心加速度方面，步态任务之间没有显著差异。[结论] 无论转弯角度如何，行走时改变行进方向是高龄老年人平衡方面最大的挑战之一。此外，步态速度是预测高龄老年人群跌倒的一个有用的临床指标。
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