Exercise & Memory Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, Oxford, MS, USA.
Am J Health Promot. 2020 Jan;34(1):25-31. doi: 10.1177/0890117119866138. Epub 2019 Jul 30.
Retroactive interference involves the disruption of previously encoded information from newly learned information and thus may impair the consolidation of long-term memory. The objective of this study was to evaluate whether acute exercise can attenuate retroactive memory interference.
Three experimental studies were employed. Experiment 1 employed a between-subject randomized control trial (RCT) involving moderate-intensity walking (15 minutes). Experiment 2 employed a between-subject RCT involving high-intensity jogging (15 minutes). Experiment 3 employed a within-subject RCT involving moderate-intensity walking (15 minutes).
University setting.
One hundred twelve young adults.
After exercise, memory interference was evaluated from an episodic word-list memory task, involving the recall of 2 word lists.
The pooled effect size (standard difference in means: -0.35; 95% confidence interval: -0.64 to -0.06) across the 3 experiments was statistically significant ( = .01).
We provide suggestive evidence that acute, short-duration exercise may help attenuate a retroactive memory interference effect. Implications of these findings for exercise to improve memory and attenuate memory decay are discussed.
回溯性干扰涉及先前编码的信息被新学习的信息破坏，因此可能会损害长期记忆的巩固。本研究的目的是评估急性运动是否可以减轻回溯性记忆干扰。
采用了三项实验研究。实验 1 采用了一项涉及中等强度步行（15 分钟）的组间随机对照试验（RCT）。实验 2 采用了一项涉及高强度慢跑（15 分钟）的组间 RCT。实验 3 采用了一项涉及中等强度步行（15 分钟）的组内 RCT。
大学环境。
112 名年轻成年人。
运动后，通过情节单词列表记忆任务评估记忆干扰，包括回忆 2 个单词列表。
三项实验的汇总效应大小（均数差异的标准差：-0.35；95%置信区间：-0.64 至 -0.06）具有统计学意义（p=0.01）。
我们提供了暗示性的证据表明，急性、短时间的运动可能有助于减轻回溯性记忆干扰效应。讨论了这些发现对运动改善记忆和减轻记忆衰退的意义。
