Gaze Behavior of Young and Older Adults During Stair Walking

被引:54
|
作者
Zietz, Doerte [1 ]
Hollands, Mark [1 ]
机构
[1] Univ Birmingham, Sch Sport & Exercise Sci, Birmingham B15 2TT, W Midlands, England
关键词
aging; eye movements; gaze; locomotion; stair negotiation; SACCADE-STEPPING INTERACTIONS; CONTRAST SENSITIVITY; TRAVEL PATH; LOCOMOTION; PERFORMANCE; DESCENT; VISION; PEOPLE; FALLS; NEGOTIATION;
D O I
10.3200/JMBR.41.4.357-366
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
The authors quantitatively described gaze behavior Of young (n = 10) and older (n = 10) adults during Stair negotiation, which is information that is crucial fore understanding the underlying visuomotor control of stair walking and the effects of aging on this control. Both age groups spent the majority of time looking at central aspects of the stairs approximately 3 steps ahead. Older adults showed less variability in the extent to which they looked ahead (p < .05), and all participants fixated the stairs for briefer periods during descent as opposed to ascent (p < .001). Older adults fixated stairs significantly longer than did Young adults before stepping onto the stairs (p < .05). The authors Conclude that adults need central Visual information describing future stepping locations and that there are age-related differences in visual sampling that reflect changes in the visuomotor control processes subserving locomotion.
引用
收藏
页码:357 / 365
页数:9
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