期刊
NEUROSCIENCE LETTERS
卷 592, 期 -, 页码 94-98出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.neulet.2015.02.046
关键词
Space flight; Skin; Foot sole; Balance; Tactile perception
资金
- Canadian Space Agency
The present study investigated the perception of low frequency (3 Hz) vibration on the foot sole and its relationship to standing balance following short duration space flight in nine astronauts. Both 3 Hz vibration perception threshold (VPT) and standing balance measures increased on landing day compared to pre-flight. Contrary to our hypothesis, a positive linear relationship between these measures was not observed; however astronauts with the most sensitive skin (lowest 3 Hz VPT) were found to have the largest sway on landing day. While the change in foot sole sensitivity does not appear to directly relate to standing balance control, an exploratory strategy may be employed by astronauts whose threshold to pressure information is lower. Understanding sensory adaptations and balance control has implications to improve balance control strategies following space flight and in sensory impaired populations on earth. (C) 2015 Elsevier Ireland Ltd. All rights reserved.
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