Greater Semantic Memory Activation After Exercise Training Cessation in Older Endurance-Trained Athletes.

Abstract:

PURPOSE:To examine the effects of a 10-day exercise-training cessation on semantic memory functional activation in older distance runners. METHODS:Ten master runners (62.6 ± 7.0 years) with a long-term endurance-training history (29.0 ± 6.0 years) underwent a 10-day training cessation. Before and immediately after the training cessation, semantic memory activation was measured during the famous name recognition task, using functional magnetic resonance imaging. RESULTS:The 10-day training cessation resulted in greater semantic memory activation in three brain regions, including the left inferior frontal gyrus, parahippocampal gyrus, and inferior semilunar lobule. The 10-day training cessation did not significantly alter famous name recognition task performance. CONCLUSIONS:The findings demonstrate that even a relatively short period without exercise training alters the functional activation patterns of semantic memory-related neural networks. Increased semantic memory activation after training cessation may indicate reduced neural efficiency during successful memory retrieval.

journal_name

J Aging Phys Act

authors

Won J,Alfini AJ,Weiss LR,Hagberg JM,Carson Smith J

doi

10.1123/japa.2020-0183

subject

Has Abstract

pub_date

2020-10-13 00:00:00

pages

1-9

eissn

1063-8652

issn

1543-267X

pii

japa.2020-0183

pub_type

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