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Evaluation of anticipation bias for RPE during progressive exercise testing
Ann M Swank1, Daniel C Funk, Robert J Robertson
1Exercise Physiology Lab, Crawford Gym Room 2, University of Louisville, Louisville, KY 40292, USA. swank@louisville.edu
Perceptual and Motor Skills
|August 3, 2005
Summary
This study found no significant anticipation bias in perceived exertion ratings during exercise tests. Ratings of perceived exertion (RPE) and physiological measures were consistent across repeated exercise sessions.
Area of Science:
- Exercise Physiology
- Sports Science
- Human Performance
Background:
- Anticipation bias may affect subjective exercise intensity ratings.
- Understanding RPE reliability is crucial for exercise prescription and research.
Purpose of the Study:
- To evaluate anticipation bias in ratings of perceived exertion (RPE) during submaximal progressive exercise.
- To assess the reliability of differentiated and undifferentiated RPE signals.
Main Methods:
- 13 healthy university students (7 men, 6 women) completed two identical submaximal progressive cycle tests.
- Ratings of Perceived Exertion (RPE) using the CR-10 scale and heart rate were recorded.
- Power outputs from the first test were randomized in the second test to identify bias.
Main Results:
- No significant differences were found for undifferentiated or peripheral RPE signals between tests.
- While heart rate and Respiratory-Metabolic RPE showed differences at high intensity, statistical agreement tests indicated no significant bias.
- The 95% confidence interval for the Respiratory-Metabolic signal overlapped zero, indicating no significant bias.
Conclusions:
- Both undifferentiated and differentiated RPE are reliable during submaximal progressive cycle exercise.
- Anticipation bias does not appear to significantly influence RPE during this type of testing.
- These findings support the use of RPE in exercise settings without concern for anticipation bias.