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Experimental Effects of Acute Exercise in Attenuating Memory Interference: Considerations by Biological Sex

Exercise & Memory Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, Oxford, MS 38677, USA
Shenzhen Key Laboratory of Affective and Social Cognitive Science, College of Psychology and Sociology, Shenzhen University, Shenzhen 518060, China
Author to whom correspondence should be addressed.
Medicina 2019, 55(7), 331;
Received: 2 May 2019 / Revised: 24 June 2019 / Accepted: 28 June 2019 / Published: 2 July 2019
PDF [1018 KB, uploaded 3 July 2019]


Background and Objectives: The objective of this experiment was to evaluate the effects of acute exercise on memory interference and determine if this potential relationship is moderated by sex. Materials and Methods: A randomized controlled experiment was conducted (N = 40), involving young adult males (n = 20) and females (n = 20) completing two counterbalanced visits (exercise and no exercise). The exercise visit involved an acute (15 min), moderate-intensity bout of treadmill exercise, while the control visit involved a time-matched seated task. Memory interference, including both proactive interference and retroactive interference, involved the completion of a multi-trial memory task. Results: In a factorial ANOVA with the outcome being List B, there was a main effect for condition (F(1,38) = 5.75, P = 0.02, n2p = 0.13), but there was no main effect for sex (F(1,38) = 1.39, P = 0.24, n2p = 0.04) or sex by condition interaction (F(1,38) = 1.44, P = 0.23, n2p = 0.04). Conclusion: In conclusion, acute moderate-intensity exercise was effective in attenuating a proactive memory interference effect. This effect was not moderated by biological sex. View Full-Text
Keywords: cognition; encoding; learning; memory; physical activity cognition; encoding; learning; memory; physical activity

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Johnson, L.; Crawford, L.; Zou, L.; Loprinzi, P.D. Experimental Effects of Acute Exercise in Attenuating Memory Interference: Considerations by Biological Sex. Medicina 2019, 55, 331.

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