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Dose-Response Relationship between Exercise Duration and Executive Function in Older Adults

Department of Physical Education, National Taiwan Normal University, Taipei 10610, Taiwan
Department of Kinesiology, University of North Carolina at Greensboro, Greensboro, NC 27413, USA
Graduate Institute of Athletics and Coaching Science, National Taiwan Sport University, Taoyuan 33301, Taiwan
Center for East-West Medicine, University of California, Los Angeles, CA 90095, USA
Authors to whom correspondence should be addressed.
J. Clin. Med. 2018, 7(9), 279;
Received: 7 August 2018 / Revised: 3 September 2018 / Accepted: 11 September 2018 / Published: 13 September 2018
(This article belongs to the Special Issue The Effects of Exercise on Cognitive Function)
PDF [452 KB, uploaded 13 September 2018]


This study aimed to determine the dose-response relationship between exercise duration and task switching in older adults. Acute moderate intensity aerobic exercise for 20 min resulted in shorter response times than control and 10-min sessions in the heterogeneous, non-switch, and switch conditions, but not in the homogeneous condition. Additionally, linear and cubic trends between exercise duration and global switching performance as well as local switching performance were revealed with faster times being predicted by longer duration exercise; however, the cubic relationship resulted in performance following the 45-min session being not significantly different from the other three sessions. Acute aerobic moderate intensity exercise for 20 min is an effective duration to improve task switching. Although a longer duration of exercise is not optimal for benefiting task switching, it does not harm task switching in older adults and hence may be of value for other health-related reasons. View Full-Text
Keywords: dose-response relationship; executive function; exercise prescription; task switching dose-response relationship; executive function; exercise prescription; task switching

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Chen, F.-T.; Etnier, J.L.; Wu, C.-H.; Cho, Y.-M.; Hung, T.-M.; Chang, Y.-K. Dose-Response Relationship between Exercise Duration and Executive Function in Older Adults. J. Clin. Med. 2018, 7, 279.

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