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Health Promot Perspect. 2021;11(2): 256-260.
doi: 10.34172/hpp.2021.31
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Short Communication

Association of physical activity on memory interference: Boston Puerto Rican Health Study

Paul D. Loprinzi 1* ORCID logo, Lindsay K. Crawford 1, Tammy Scott 2, Katherine L. Tucker 3

1 Exercise & Memory Laboratory, Department of Health, Exercise Science and Recreation Management, University of Mississippi, Mississippi, USA
2 Friedman School of Nutrition Science and Policy, Tufts University School of Medicine, Boston, MA, USA
3 Center for Population Health, Biomedical & Nutritional Sciences, University of Massachusetts Lowell, Lowell, Ma, USA
*Corresponding Author: Paul D. Loprinzi, Email: pdloprin@olemiss.edu

Abstract

Background: The objective of this study was to evaluate the association between habitual physical activity engagement on memory interference. The present analysis used cross-sectional data from the Boston Puerto Rican Health Study (n=1,241; mean age= 57.2; 72.1% female).

Methods: Physical activity was evaluated via self-report. Memory interference was evaluated using a word-list paradigm. The memory task included learning a list of 16 words (List A; 5 trials), followed by a distractor list (List B), and then an immediate recall of List A. Proactive interference occurs when preceding stimuli (e.g., Trial 1 and Trial 5 of List A) interferes with performance on a subsequent stimuli (List B). Retroactive interference occurs when subsequent stimuli (List B) interferes with the recall of previously encoded stimuli (Trial 5).

Results: For proactive interference, there was no association between physical activity and the difference between performance on List B and Trial 1 of List A (β=0.00001; P=0.96). Similarly, for retroactive interference, there was no association between physical activity and the difference between the short delay recall and Trial 5 of List A (β=0.0002; P=0.50).

Conclusion: The present study did not observe an association between habitual physical activity on attenuating memory interference.

Keywords: Cognition, Exercise, Memory, physical activity
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Submitted: 29 Mar 2020
Accepted: 09 Feb 2021
ePublished: 19 May 2021
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