Acute Exercise on Memory Reconsolidation

Autor:	Ashley Lovorn, Noelle Mincarelli, Emma Hamilton, Paul D. Loprinzi
Jazyk:	angličtina
Rok vydání:	2019
Předmět:	Memory distortion medicine.medical_specialty business.industry Exercise group lcsh:R lcsh:Medicine 030229 sport sciences General Medicine episodic memory intrusions Article 03 medical and health sciences 0302 clinical medicine Free recall Memory task Physical therapy medicine Memory consolidation Analysis of variance Heart rate reserve business Episodic memory memory distortion 030217 neurology & neurosurgery
Zdroj:	Journal of Clinical Medicine, Vol 8, Iss 8, p 1200 (2019) Journal of Clinical Medicine Volume 8 Issue 8
ISSN:	2077-0383
Popis:	Background and Objective: Once a memory is reactivated, it enters a labile state and, thus, is vulnerable to memory decay and/or distortion. Recent research demonstrates that acute, high-intensity exercise is associated with enhanced episodic memory function. Very limited research, however, has evaluated whether acute exercise can attenuate memory distortion from memory reactivation, which was the purpose of this study. Methods: A between-subject randomized controlled intervention was employed. Participants (N = 80) were randomly assigned to one of four groups, including (1) reminder with exercise, (2) reminder, (3) no reminder, and (4) interference control. For the groups, participants completed three visits (Visit 1, 2, and 3), which all occurred 48 hours apart. An exception to this was the interference control group, which did not complete Visit 2. On Visit 2, the reminder with exercise group engaged in a 15 min bout of high-intensity exercise (80% of heart rate reserve) immediately after memory reactivation. On Visit 3, participants engaged in a free recall (4 trials) of the memory task encoded on Visit 1. Results: In a 4 (groups) × 4 (learning trials) mixed-measures ANOVA, with the group as the between-subjects variable and the learning trials (1&ndash 4) as the within-subject variable, there was a significant main effect group, F(3, 76) = 4.18, p = 0.008, &eta 2p = 0.14, and a significant main effect for the learning trials, F(2.40, 182.59) = 49.25, p < 0.001, &eta 2p = 0.39, but there was no group by learning trials interaction, F(7.20, 182.59) = 1.07, p = 0.38, &eta 2p = 0.04. Conclusion: Our findings suggest that exercise may, potentially, attenuate memory distortion from memory reactivation. However, future work is needed to confirm these findings before any strong conclusions can be reached.
Databáze:	OpenAIRE
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