The effects of a single 3-mg dose of melatonin on the postural control and cognitive performance of community-dwelling older adults were documented. The testing involved stepping down while performing a cognitive task (a Stroop test). Thirty-four older adults were recruited. Immediately before and 1 hr after taking a dose of melatonin, they completed a single-leg standing task after stepping down with and without a simultaneous Stroop test, and a double-leg standing task. The findings indicated a statistically significant increase in sway area under the dual-tasking condition after taking melatonin (p = .04) and the double-leg standing task (p = .018). However, cognitive performance per se was not affected by the melatonin. Melatonin impairs postural control in older adults but not cognitive performance. Copyright © 2019 Human Kinetics, Inc.
CitationLui, M. F. G., Chow, H. K. D., Wong, W. M. K., & Tsang, W. N. W. (2019). Melatonin affects postural control in community-dwelling older adults while dual tasking: A randomized observation study. Journal of Aging and Physical Activity, 27(1), 102-107. doi: 10.1123/japa.2017-0312
- Dual tasking
- Older adults
- Postural control
- Stroop tests