The effect of extended wake on postural control in young adults

Smith, Simon S., Cheng, Tiffany and Kerr, Graham K. (2012) The effect of extended wake on postural control in young adults. Experimental Brain Research, 221 3: 329-335. doi:10.1007/s00221-012-3175-8

Author Smith, Simon S.
Cheng, Tiffany
Kerr, Graham K.
Title The effect of extended wake on postural control in young adults
Journal name Experimental Brain Research   Check publisher's open access policy
ISSN 0014-4819
Publication date 2012-09-01
Year available 2012
Sub-type Article (original research)
DOI 10.1007/s00221-012-3175-8
Open Access Status Not yet assessed
Volume 221
Issue 3
Start page 329
End page 335
Total pages 7
Place of publication Heidelberg, Germany
Publisher Springer
Language eng
Abstract The sleep–wake cycle is a major determinant of locomotor activity in humans, and the neural and physiological processes necessary for optimum postural control may be impaired by an extension of the wake period into habitual sleep time. There is growing evidence for such a contribution from sleep-related factors, but great inconsistency in the methods used to assess this contribution, particularly in control for circadian phase position. Postural control was assessed at hourly intervals across 14 h of extended wake in nine young adult participants. Force plate parameters of medio-lateral and anterior–posterior sway, centre of pressure (CoP) trace length, area, and velocity were assessed with eyes open and eyes closed over 3-min periods. A standard measure of psychomotor vigilance was assessed concurrently under constant routine conditions. After controlling for individual differences in circadian phase position, a significant effect of extended wake was found for anterior–posterior sway and for psychomotor vigilance. These data suggest that extended wake may increase the risk of a fall or other consequences of impaired postural control.
Keyword Postural control
Circadian rhythm
Sleep debt
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Institute for Social Science Research - Publications
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