Validity of using perceived exertion to assess muscle fatigue during resistance exercises.

ABSTRACT:

Background

The rating of perceived exertion (RPE) is correlated with physiological variables. The purpose of this study was to assess the validity of using the Borg CR-10 scale and velocity to predict muscle fatigue assessed by surface electromyography during single joint resistance exercises.

Methods

Fifteen healthy males underwent different fatigue levels of unilateral elbow flexion (EF) and knee extension (KE), consisting of low, medium, and high volumes at 65% of their one-repetition maximum. The RPEs, spectral fatigue index (SFI), and mean velocity of the experimental exercises were assessed throughout the trials.

Results

Significant differences in overall RPE (p < 0.001) and average SFI (p < 0.001) were observed between the conditions in both exerc

SUBMITTER: Zhao H 

PROVIDER: S-EPMC8896022 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature