Bean, M. J., & Stegall, A. B. (2003). Perceived exertion during resistance training in trained and untrained females. Medicine and Science in Sports and Exercise, 35(5), Supplement abstract 1619.

Female college students (N = 40) were grouped as trained athletes, trained non-athletes, or untrained. Each S completed 1 RM on a chest press machine. Then, each S lifted in random order submaximal loads ranging from 10-90% 1-RM, Ss being blind to each load. Perceived exertion was measured using the CR-10 scale.

There were no differences between groups in RPE responses. Intensities were significantly underestimated in the 2-8 (20-80%) range.

Implication. Intensities of strength exertions can be delineated using the CR-10 scale but the intensities are generally underestimated. Estimates of strength exertion are classed as being easier than actual values.

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