Acute Exercise, Psychological Stress Induction, and Episodic Memory
Paul D Loprinzi1, Lauren Koehler2, Emily Frith3
1Paul D. Loprinzi, University of Mississippi, Exercise & Memory Laboratory, Department of Health, Exercise Science and Recreation Management, University of Mississippi, Shenzhen, China;,
Abstract:
Objective: In this study, we evaluated whether exercise prior to memory encoding or during memory consolidation can influence episodic memory function after being exposed to a stressful environment. Methods: We conducted 3 between-group randomized controlled experiments among young adults. We assessed episodic memory (via logic memory task) at the beginning of the experiment and approximately 45 minutes later. Across the 3 experiments, we varied the temporal period (eg, before memory encoding or during consolidation) of the acute bout of exercise (15-minute moderate-intensity exercise) and psychological stress induction. Results: Across all 3 experiments there was a statistically significant main effect for time for memory function, but there were no time x group interaction effects. Conclusion: Memory declined across the 2 assessment periods, but for all 3 experiments, exercise was not associated with memory function after being exposed to a stressful stimulus.
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