Acute effects of high-intensity resistance exercise on cognitive function

Author Identifier

Robert U Newton

https://orcid.org/0000-0003-0302-6129

Document Type

Journal Article

Publication Title

Journal of Sports Science & Medicine

Volume

20

Issue

3

First Page

391

Last Page

397

Publisher

Journal of Sports Science & Medicine

School

School of Medical and Health Sciences / Exercise Medicine Research Institute

RAS ID

36579

Comments

Anders, J. P. V., Kraemer, W. J., Newton, R. U., Post, E. M., Caldwell, L. K., Beeler, M. K., ... Hayes, S. M. (2021). Acute effects of high-intensity resistance exercise on cognitive function. Journal of Sports Science & Medicine, 20, 391-397. https://doi.org/10.52082/jssm.2021.391

Abstract

The purpose of the present study was to examine the influence of an acute bout of high-intensity resistance exercise on measures of cognitive function. Ten men (Mean ± SD: age = 24.4 ± 3.2 yrs; body mass = 85.7 ± 11.8 kg; height = 1.78 ± 0.08 m; 1 repetition maximum (1RM) = 139.0 ± 24.1 kg) gave informed consent and performed a high-intensity 6 sets of 10 repetitions of barbell back squat exercise at 80% 1RM with 2 minutes rest between sets. The Automated Neuropsychological Assessment Metrics (ANAM) was completed to assess various cognitive domains during the familiarization period, immediately before, and immediately after the high-intensity resistance exercise bout. The repeated measures ANOVAs for throughput scores (r.m-1) demonstrated significant mean differences for the Mathematical Processing task (MTH; p < 0.001, η2p = 0.625) where post hoc pairwise comparisons demonstrated that the post-fatigue throughput (32.0 ± 8.8 r.m-1) was significantly greater than the pre-fatigue (23.8 ± 7.4 r.m-1, p = 0.003, d = 1.01) and the familiarization throughput (26.4 ± 5.3 r.m-1, p = 0.024, d = 0.77). The Coded SubstitutionDelay task also demonstrated significant mean differences (CDD; p = 0.027, η2p = 0.394) with post hoc pairwise comparisons demonstrating that the post-fatigue throughput (49.3 ± 14.4 r.m1) was significantly less than the pre-fatigue throughput (63.2 ± 9.6 r.m-1, p = 0.011, d = 1.14). The repeated measures ANOVAs for reaction time (ms) demonstrated significant mean differences for MTH (p < 0.001, η2p = 0.624) where post hoc pairwise comparisons demonstrated that the post-fatigue reaction time (1885.2 ± 582.8 ms) was significantly less than the pre-fatigue (2518.2 ± 884.8 ms, p = 0.005, d = 0.85) and familiarization (2253.7 ± 567.6 ms, p = 0.009, d = 0.64) reaction times. The Go/No-Go task demonstrated significant mean differences (GNG; p = 0.031, η2p = 0.320) with post hoc pairwise comparisons demonstrating that the post-fatigue (285.9 ± 16.3 ms) was significantly less than the pre-fatigue (298.5 ± 12.1 ms, p = 0.006, d = 0.88) reaction times. High-intensity resistance exercise may elicit domain-specific influences on cognitive function, characterized by the facilitation of simple cognitive tasks and impairments of complex cognitive tasks.

DOI

10.52082/jssm.2021.391

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free_to_read

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