Steed, J., Gaesser, G. A., & Weltman, A. (1994). Rating of perceived exertion and blood lactate concentration during submaximal running. Medicine and Science in Sports and Exercise, 26(6), 797-803.

RPE was found to be a physiologically valid tool for prescribing exercise intensity when the intent is to use lactate threshold or blood lactate concentrations as the intensity criterion.

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