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老年人运动时长与执行功能之间的剂量反应关系。

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

作者信息

Chen Feng-Tzu, Etnier Jennifer L, Wu Chih-Han, Cho Yu-Min, Hung Tsung-Min, Chang Yu-Kai

机构信息

Department of Physical Education, National Taiwan Normal University, Taipei 10610, Taiwan.

Department of Kinesiology, University of North Carolina at Greensboro, Greensboro, NC 27413, USA.

出版信息

J Clin Med. 2018 Sep 13;7(9):279. doi: 10.3390/jcm7090279.

Abstract

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.

摘要

本研究旨在确定老年人运动时长与任务转换之间的剂量反应关系。在异质、非转换和转换条件下,20分钟的急性中等强度有氧运动导致的反应时间比对照组和10分钟运动时段更短,但在同质条件下并非如此。此外,运动时长与整体转换表现以及局部转换表现之间呈现出线性和三次方趋势,运动时长越长,预测的反应时间越快;然而,三次方关系导致45分钟运动时段后的表现与其他三个时段没有显著差异。20分钟的急性中等强度有氧运动是改善任务转换的有效时长。虽然更长的运动时长对任务转换并非最有益,但它不会损害老年人的任务转换能力,因此可能因其他与健康相关的原因而具有价值。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/96b6/6162829/263b7fb7e009/jcm-07-00279-g001.jpg

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