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CC BY 4.0 · Int J Sports Med
DOI: 10.1055/a-2545-5403
Training & Testing

Perceived exertion reflects fatigue conditions during power-aimed resistance training

Hanye Zhao 
1   Faculty of Sport Sciences, Waseda Daigaku, Tokorozawa, Japan (Ringgold ID: RIN13148)
,
Takanori Kurokawa
2   Graduate School of Sport Sciences, Waseda Daigaku, Tokorozawa, Japan (Ringgold ID: RIN13148)
,
Masayoshi Tajima
2   Graduate School of Sport Sciences, Waseda Daigaku, Tokorozawa, Japan (Ringgold ID: RIN13148)
,
Zijian Liu
2   Graduate School of Sport Sciences, Waseda Daigaku, Tokorozawa, Japan (Ringgold ID: RIN13148)
,
Junichi Okada
1   Faculty of Sport Sciences, Waseda Daigaku, Tokorozawa, Japan (Ringgold ID: RIN13148)
› InstitutsangabenGefördert durch: Internal Special Research Projects of Waseda University BARD01969501
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Abstract

Fatigue is an inevitable part of resistance training, making its monitoring crucial to prevent performance decline. This study evaluated the validity of ratings of perceived exertion as a measure of fatigue during power bench press exercises. Fourteen sub-elite male athletes completed three bench press tasks with varying volumes (low, medium, and high) at 65% of their one-repetition maximum. The rating of perceived exertion, a spectral fatigue index, and velocity loss were measured across all conditions. Significant effects were observed for the overall ratings of perceived exertion, average velocity loss, and average spectral fatigue index (all p<0.001). As tasks progressed, the rating of perceived exertion and the spectral fatigue index increased significantly (p<0.001), while the velocity loss was not significant under the low-volume condition. Significant correlations were found between the rating of perceived exertion and the spectral fatigue index (r=0.547, p<0.001), the velocity loss and the spectral fatigue index (r=0.603, p<0.001), and the rating of perceived exertion and the velocity loss (r=0.667, p<0.001). The findings suggest that both the rating of perceived exertion and the velocity loss are valid measures of fatigue in power bench press exercises. However, the rating of perceived exertion is a more practical option due to its simplicity and accessibility. Furthermore, the rating of perceived exertion can act as a substitute for velocity when measurement tools are unavailable. It should be noted that velocity alone may not fully capture fatigue in low-repetition power training.

Keywords

borg scale - neuromuscular fatigue - resistance training - surface electromyography


Publikationsverlauf

Eingereicht: 28. November 2024

Angenommen nach Revision: 30. Januar 2025

Accepted Manuscript online:
24. Februar 2025

Artikel online veröffentlicht:
25. März 2025

© 2025. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/).

Georg Thieme Verlag KG
Oswald-Hesse-Straße 50, 70469 Stuttgart, Germany

 

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