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Exercise Modality, But Not Exercise Training, Alters The Acute Effect Of Exercise On Endothelial Function.

Boidin, M, Erskine, RM, Thijssen, DHJ and Dawson, EA (2021) Exercise Modality, But Not Exercise Training, Alters The Acute Effect Of Exercise On Endothelial Function. Journal of Applied Physiology (1985). ISSN 8750-7587

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Abstract

PURPOSE: We used a within-subject cross-over design to examine the impact of exercise modality, i.e. resistance (RT) and endurance (END), on the acute impact of exercise on endothelial function. Secondly, we examined whether 4-week exercise training altered the exercise-induced change in endothelial function in healthy individuals. METHODS: Forty young healthy men (21±2 years) reported to our laboratory to complete assessment of endothelial function (using the brachial artery flow-mediated dilation test [FMD]) before and immediately after a single bout of RT (leg-extension) or END (cycling). Subsequently, participants completed a 4-week period of training (12 sessions), followed by evaluation of the FMD before and after a single bout of exercise. Following a 3-week washout, participants repeated these experiments with the different exercise modality (in a balanced cross-over design). RESULTS: An Exercise*Modality-interaction effect was found (P=0.003), with post-hoc analysis revealing a decrease in FMD after END (P=0.03 and P<0.001, pre and post training respectively), but no change in FMD after RT (P=0.06 and P=0.39, before and after the training intervention respectively). Four weeks of exercise training did not alter the acute effect of exercise on FMD (Acute*Training*Modality effect: P=0.63), an effect independent of the modality of exercise (Acute*Training interaction: P=0.46 and P=0.11 in RT and END respectively). CONCLUSION: We found that exercise modality, but not exercise training, alters the effect of acute exercise on endothelial function in healthy subjects. Specifically, endurance exercise, but not resistance exercise, causes a decrease in brachial artery endothelial function, which was unaffected by 4 weeks of training.

Item Type: Article
Uncontrolled Keywords: 06 Biological Sciences, 11 Medical and Health Sciences
Subjects: R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Sport & Exercise Sciences
Publisher: Amercian Physiological Society
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Date Deposited: 10 May 2021 10:54
Last Modified: 10 May 2021 11:00
DOI or Identification number: 10.1152/japplphysiol.00004.2021
URI: https://researchonline.ljmu.ac.uk/id/eprint/14971

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