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

1
Exercise & Memory Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, Oxford, MS 38677, USA
2
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; https://doi.org/10.3390/medicina55070331
Received: 2 May 2019 / Revised: 24 June 2019 / Accepted: 28 June 2019 / Published: 2 July 2019
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Abstract

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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