Convergent validity of ratings of perceived exertion during resistance exercise in healthy participants: A systematic review and meta-analysis
Lea, J., O'Driscoll, J., Hulbert, S., Scales, J. and Wiles, J. 2021. Convergent validity of ratings of perceived exertion during resistance exercise in healthy participants: A systematic review and meta-analysis. Sports Medicine - Open. https://doi.org/10.1186/s40798-021-00386-8
|Authors||Lea, J., O'Driscoll, J., Hulbert, S., Scales, J. and Wiles, J.|
Background: The validity of ratings of perceived exertion (RPE) during aerobic training is well established; however, it’s validity during resistance exercise is less clear. This meta-analysis used the known relationships between RPE and exercise intensity (EI), heart rate (HR), blood lactate (BLa), blood pressure (BP) and electromyography (EMG) to determine the convergent validity of RPE as a measure of resistance exercise intensity and physiological exertion, during different forms of resistance exercise. Additionally, this study aims to assess the effect of several moderator variables on the strength of the validity coefficients, so that clearer guidance can be given on the use of RPE during resistance exercise.
Results: One-hundred and eighteen studies were included in the qualitative synthesis, with 75 studies (99 unique cohorts) included in the meta-analysis. The overall weighted mean validity coefficient was large (0.88; 95% CI 0.84 to 0.91) and between studies heterogeneity was very large (Tau2 = 0.526, I2 = 96.1%). Studies using greater workload ranges, isometric muscle actions, and those that manipulated workload or repetition time, showed the highest validity coefficients. Conversely, sex, age, training status, RPE scale used, and outcome measure did not have an effect.
Conclusions: RPE provides a valid measure of exercise intensity and physiological exertion during resistance exercise, with effect sizes comparable or greater than those shown during aerobic exercise. Therefore, RPE may provide an easily accessible means of prescribing and monitoring resistance exercise training.
Registration: The systematic review protocol was registered on the PROSPERO database (CRD42018102640).
|Keywords||Exercise intensity; Physiological exertion; RPE; Workload; Strength training|
|Journal||Sports Medicine - Open|
|Digital Object Identifier (DOI)||https://doi.org/10.1186/s40798-021-00386-8|
|Online||08 Jan 2022|
|Publication process dates|
|Accepted||21 Nov 2021|
|Deposited||13 Dec 2021|
|Accepted author manuscript|
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