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Effect of exercise duration on session RPE at an individualized constant workload
J Matthew Green1, Joyce R McIntosh, Jarred Hornsby
1Department of Health, Physical Education and Recreation, University of North Alabama, UNA Box 5073, Florence, AL 35632-0001, USA. jmgreen@una.edu
Exercise duration has minimal impact on session ratings of perceived exertion (SRPE). Differentiating SRPE for overall, leg, or breathing effort does not significantly enhance training load evaluation.
Area of Science:
- Exercise Physiology
- Sports Science
- Training Load Monitoring
Background:
- Session ratings of perceived exertion (SRPE) are valuable for assessing training load.
- Factors influencing SRPE, particularly exercise duration, require further investigation.
Purpose of the Study:
- To compare SRPE across different treadmill exercise durations at a fixed workload.
- To determine if differentiating SRPE for overall, leg, or breathing effort impacts results.
Main Methods:
- Ten participants completed maximal exertion and submaximal treadmill trials of 20, 30, and 40 minutes.
- Heart rate, acute RPE, and blood lactate were monitored during exercise.
- Session RPE (overall, legs, breathing) was recorded 20 minutes post-exercise.
Main Results:
- No significant differences in heart rate, blood lactate, or acute RPE were found across trial durations.
- Exercise duration did not significantly affect SRPE.
- Overall SRPE was higher than breathing SRPE, but leg SRPE was not significantly different from overall SRPE.
Conclusions:
- Exercise duration appears to have a minimal effect on session ratings of perceived exertion.
- Differentiating SRPE components (overall, legs, breathing) did not offer significant advantages in this study.
- Further research is needed to fully understand the nuances of SRPE components.
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