Age-related differences during a gaze reorientation task while standing or walking on a treadmill
Age-related differences during a gaze reorientation task while standing or walking on a treadmill
复制标题
DOI：
10.1007/s00221-007-1266-8
复制
发表时间：
2008-02-01
影响因子：
2
通讯作者：
Stuart, Bethany
中科院分区：
文献类型：
--
作者：
Cinelli, Michael;Patla, Aftab;Stuart, Bethany
65岁以上的成年人中的福尔斯已经成为一个日益关注的问题。这组成年人中与福尔斯高发病率相关的两个因素是头部稳定性下降和平衡受损。当老年人必须重新调整视线时，他们对头部稳定性或平衡的控制水平是未知的。在目前的研究中，10名老年人（69 +/- 3.27岁）在跑步机上站立或行走时执行凝视重新定向任务。这项任务与Cinelli等人（2007年）在年轻人身上使用的任务相同。结果表明，老年人使用不同的策略比年轻人时，重新定向凝视。肩关节和髋关节的旋转发生同步时，站在跑步机上行走时，更多的变量。同样，老年人的眼球运动和身体部分运动的开始之间存在较大差异。这些差异可以通过生理子系统的减少来解释。视觉目标的视觉存在帮助老年人通过整合来自多个感觉系统的信息来稳定他们的头部空间。
Falls among adults over the age of 65 years have become a growing concern. Two factors related to high incidence of falls in this group of adults are decreased head stability and impaired balance. Older adults' level of control of head stability or balance is unknown when they must reorient their gaze. In the current study, ten older adults (69 +/- 3.27 years) performed a gaze reorienting task while standing or walking on a treadmill. The task was the same as that used on young adults by Cinelli et al. (2007). The results show that older adults use a different strategy than young adults when reorienting gaze. Shoulder and hip rotations occurred synchronously when standing and were more variable when walking on a treadmill. As well, there was a larger difference between the onset of eye movements and body segment movement in the older adults. These differences can be accounted for by decreases in physiological subsystems. The visual presence of a visual target helped the older adults stabilize their heads-in-space by incorporating information from more than one sensory system.