Kamijo Keita, Hayashi Yoichi, Sakai Tomoaki, Yahiro Tatsuhisa, Tanaka Kiyoji, Nishihira Yoshiaki
Faculty of Sport Sciences, Waseda University, 2-579-15, Mikajima, Tokorozawa, Saitama 359-1192, Japan.
J Gerontol B Psychol Sci Soc Sci. 2009 May;64(3):356-63. doi: 10.1093/geronb/gbp030. Epub 2009 Apr 10.
The present study investigated the effects of acute aerobic exercise on cognitive brain functions of older adults. Twenty-four males (12 older and 12 younger adults) performed a modified flanker task during a baseline session (no exercise) and after light and moderate cycling exercise in counterbalanced order on different days while measures of task performance and the P3 component of an event-related brain potential were collected. The results indicated that, for both age groups, reaction time following moderate exercise was shorter relative to the other sessions, and P3 latencies following both light and moderate exercise were shorter compared with the baseline session. In contrast, P3 amplitude increased only following moderate exercise in younger adults. These findings suggest that light and moderate exercises improve cognitive function across the adult lifespan, although the mechanisms underlying the effects of observed acute aerobic exercise on cognitive function may be age dependent.
本研究调查了急性有氧运动对老年人认知脑功能的影响。24名男性（12名老年人和12名年轻人）在基线期（无运动）以及在不同日期以平衡顺序进行轻度和中度骑自行车运动后，执行一项改良的侧翼任务，同时收集任务表现和事件相关脑电位的P3成分的测量数据。结果表明，对于两个年龄组，中度运动后的反应时间相对于其他时段更短，轻度和中度运动后的P3潜伏期与基线期相比更短。相比之下，仅年轻成年人在中度运动后P3波幅增加。这些发现表明，轻度和中度运动可改善整个成年期的认知功能，尽管观察到的急性有氧运动对认知功能影响的潜在机制可能与年龄有关。
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