Yanes Danielle, Loprinzi Paul D
Exercise Psychology Laboratory, Physical Activity Epidemiology Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, Oxford, MS 38677, USA.
J Clin Med. 2018 Jun 11;7(6):146. doi: 10.3390/jcm7060146.
The present experiment evaluated the effects of acute exercise on iconic memory and short- and long-term episodic memory. A two-arm, parallel-group randomized experiment was employed ( = 20 per group; M = 21 year). The experimental group engaged in an acute bout of moderate-intensity treadmill exercise for 15 min, while the control group engaged in a seated, time-matched computer task. Afterwards, the participants engaged in a paragraph-level episodic memory task (20 min delay and 24 h delay recall) as well as an iconic memory task, which involved 10 trials (at various speeds from 100 ms to 800 ms) of recalling letters from a 3 × 3 array matrix. For iconic memory, there was a significant main effect for time (F = 42.9, < 0.001, η² = 0.53) and a trend towards a group × time interaction (F = 2.90, = 0.09, η² = 0.07), but no main effect for group (F = 0.82, = 0.37, η² = 0.02). The experimental group had higher episodic memory scores at both the baseline (19.22 vs. 17.20) and follow-up (18.15 vs. 15.77), but these results were not statistically significant. These findings provide some suggestive evidence hinting towards an iconic memory and episodic benefit from acute exercise engagement.
本实验评估了急性运动对图像记忆以及短期和长期情景记忆的影响。采用了双臂平行组随机实验（每组n = 20；平均年龄M = 21岁）。实验组进行了15分钟的急性中度强度跑步机运动，而对照组进行了坐着的、时间匹配的计算机任务。之后，参与者进行了段落级情景记忆任务（20分钟延迟和24小时延迟回忆）以及图像记忆任务，该任务包括从3×3阵列矩阵中回忆字母的10次试验（速度从100毫秒到800毫秒不等）。对于图像记忆，时间存在显著主效应（F = 42.9，p < 0.001，η² = 0.53），且存在组×时间交互作用的趋势（F = 2.90，p = 0.09，η² = 0.07），但组间无主效应（F = 0.82，p = 0.37，η² = 0.02）。实验组在基线（19.22对17.20）和随访（18.15对15.77）时的情景记忆得分均较高，但这些结果无统计学意义。这些发现提供了一些提示性证据，表明急性运动对图像记忆和情景记忆有益。
