Int J Sports Med 2022; 43(11): 941-948
DOI: 10.1055/a-1766-5945
Training & Testing

Tracking the Fatigue Status after a Resistance Exercise through Different Parameters

Gabriel Motta Pinheiro Brisola
1   Post-Graduate Program in Movement Sciences, São Paulo State University – UNESP, Brazil
2   Laboratory of Physiology and Sport Performance (LAFIDE), Department of Physical Education, School of Sciences, São Paulo State University - UNESP, Bauru – SP, Brazil
,
Ward C. Dobbs
3   Department of Exercise & Sport Science, University of Wisconsin-La Crosse, La Crosse, WI, United States
4   Department of Kinesiology, The University of Alabama, Tuscaloosa, AL, United States
,
3   Department of Exercise & Sport Science, University of Wisconsin-La Crosse, La Crosse, WI, United States
,
Michael R. Esco
4   Department of Kinesiology, The University of Alabama, Tuscaloosa, AL, United States
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Abstract

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.



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Eingereicht: 22. September 2021

Angenommen: 19. Januar 2022

Artikel online veröffentlicht:
19. Juli 2022

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