Tracking the Fatigue Status after a Resistance Exercise through Different Parameters.

Autor:	Brisola GMP; Post-Graduate Program in Movement Sciences, São Paulo State University - UNESP, Brazil.; Laboratory of Physiology and Sport Performance (LAFIDE), Department of Physical Education, School of Sciences, São Paulo State University - UNESP, Bauru - SP, Brazil., Dobbs WC; Department of Exercise & Sport Science, University of Wisconsin-La Crosse, La Crosse, WI, United States.; Department of Kinesiology, The University of Alabama, Tuscaloosa, AL, United States., Zagatto AM; Department of Exercise & Sport Science, University of Wisconsin-La Crosse, La Crosse, WI, United States., Esco MR; Department of Kinesiology, The University of Alabama, Tuscaloosa, AL, United States.
Jazyk:	angličtina
Zdroj:	International journal of sports medicine [Int J Sports Med] 2022 Oct; Vol. 43 (11), pp. 941-948. Date of Electronic Publication: 2022 Jul 19.
DOI:	10.1055/a-1766-5945
Abstrakt:	The purpose of the study was to investigate the sensitivity of back squat bar velocity, isometric mid-thigh pull, heart rate variability parameters, perceived recovery scale and step counts for tracking the muscular fatigue time-course (reduction in countermovement jump [CMJ] performance) after strenuous acute lower limb resistance exercise. Sixteen healthy men performed heart rate variability assessment, perceived recovery scale, CMJ, back squat bar velocity, isometric mid-thigh pull, and daily step counts before and 24 h, 48 h and 72 h post a strenuous acute lower limb resistance exercise (8×10 repetitions). The CMJ height decreased at 24 and 48 h after exercise session ( p ≤0.017), evidencing the muscular fatigue. The perceived recovery scale presented lower values compared to baseline until 72 h after exercise session ( p <0.001 for all). The heart rate variability parameters and step counts were not significantly different across time. At 24 h post, only mean force of mid-thigh pull was decreased ( p =0.044), while at 48 h post, only peak force of mid-thigh pull was decreased ( p =0.020). On the last day (72 h), only bar velocity (mean) presented reduction ( p =0.022). Therefore, the perceived recovery scale was the only variable sensible to tracking muscular fatigue, i. e. presenting a similar time-course to CMJ height. Competing Interests: The authors declare that they have no conflict of interest. (Thieme. All rights reserved.)
Databáze:	MEDLINE
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