College-aged subjects successfully used the OMNI RPE scale to self-regulate exercise intensity during a 20-minute bout when starting at an RPE corresponding to 50% of VO2R (p>0.05 vs estimation).
p-value: p=>0.05
PURPOSE: The primary purpose of this investigation was to determine if college age males and females (18 to 25 years old) can self-regulate exercise intensity during a 20 minute intermittent bout of aerobic exercise on the treadmill using the OMNI RPE scale. METHODS: All subjects completed an estimation trial (EST) graded exercise test using the Bruce protocol to measure heart rate (HR), oxygen consumption (VO2), and rating of perceived exertion (RPE) every minute until exhaustion. Using data from the EST, target RPEs corresponding to 50% and 70% of VO2R were determined via regression analysis. A production trial (PROD) was then performed in which subject's titrated speed and grade on the treadmill to elicit the target RPEs corresponding to 50% and 70% of VO2R in counterbalance order. RESULTS: At an RPE corresponding to 50% of VO2R, HR and VO2 were significantly higher in the PROD compared to the EST for counterbalance order I (70% - 50%) (p .05). When subjects exercised at an RPE corresponding to 70% of VO2R, the HR was significantly higher in the PROD compared to the EST for counterbalance order I (70% - 50%), (p .05). At an RPE corresponding to 70% of VO2R, there was no significant difference in the VO2 between the EST and PROD trials (p > .05). Subjects were also able to perceptually differentiate between the two target RPEs corresponding to 50% and 70% of VO2R as indicated by the significant difference in HR (p < .05) and VO2 (p < .05) between the two prescribed PROD RPE intensities. CONCLUSIONS: The findings of the present investigation indicates that subjects were able to use RPE to self-regulate exercise intensity during 20 minutes of exercise at varying intensity when starting the exercise bout at the RPE corresponding to 50% of VO2R.
Schafer et al. (Thu,) conducted a other in Exercise intensity regulation. Self-regulation using OMNI RPE scale (Production trial) vs. Estimation trial (graded exercise test) was evaluated on Heart rate (HR) and oxygen consumption (VO2) differences between production and estimation trials (p=>0.05). College-aged subjects successfully used the OMNI RPE scale to self-regulate exercise intensity during a 20-minute bout when starting at an RPE corresponding to 50% of VO2R (p>0.05 vs estimation).