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European Journal of Applied Physiology

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01-12-2013 | Original Article

The effects of aging on postural control and selective attention when stepping down while performing a concurrent auditory response task

Authors: William W. N. Tsang, Nazca K. Y. Lam, Kit N. L. Lau, Harry C. H. Leung, Crystal M. S. Tsang, Xi Lu

Published in: European Journal of Applied Physiology | Issue 12/2013

Abstract

Purpose

To investigate the effects of aging on postural control and cognitive performance in single- and dual-tasking.

Methods

A cross-sectional comparative design was conducted in a university motion analysis laboratory. Young adults (n = 30; age 21.9 ± 2.4 years) and older adults (n = 30; age 71.9 ± 6.4 years) were recruited. Postural control after stepping down was measured with and without performing a concurrent auditory response task. Measurement included: (1) reaction time and (2) error rate in performing the cognitive task; (3) total sway path and (4) total sway area after stepping down.

Results

Our findings showed that the older adults had significantly longer reaction times and higher error rates than the younger subjects in both the single-tasking and dual-tasking conditions. The older adults had significantly longer reaction times and higher error rates when dual-tasking compared with single-tasking, but the younger adults did not. The older adults demonstrated significantly less total sway path, but larger total sway area in single-leg stance after stepping down than the young adults. The older adults showed no significant change in total sway path and area between the dual-tasking and when compared with single-tasking conditions, while the younger adults showed significant decreases in sway.

Conclusion

Older adults prioritize postural control by sacrificing cognitive performance when faced with dual-tasking.

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Title: The effects of aging on postural control and selective attention when stepping down while performing a concurrent auditory response task
Authors: William W. N. Tsang
Nazca K. Y. Lam
Kit N. L. Lau
Harry C. H. Leung
Crystal M. S. Tsang
Xi Lu
Publication date: 01-12-2013
Publisher: Springer Berlin Heidelberg
Published in: European Journal of Applied Physiology / Issue 12/2013
Print ISSN: 1439-6319
Electronic ISSN: 1439-6327
DOI: https://doi.org/10.1007/s00421-013-2740-6

Keynote webinar | Spotlight on sleep in brain health

Springer Medicine

The effects of aging on postural control and selective attention when stepping down while performing a concurrent auditory response task

Abstract

Purpose

Methods

Results

Conclusion

Keynote webinar | Spotlight on sleep in brain health

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusion

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Acknowledgment to referees