Key result
Ratings of perceived exertion appropriately gauged exercise intensity in approximately half of overweight patients with type 2 diabetes, while over one-third risked exercising at a higher intensity.
Why the study?
Does a subjective measure of moderate-intensity exercise (RPE 12-13) correspond to the target heart rate (40-59% HRR) in overweight individuals with type 2 diabetes?
Cross-Sectional
Does a subjective measure of moderate-intensity exercise (RPE 12-13) correspond to the target heart rate (40-59% HRR) in overweight individuals with type 2 diabetes?
p-value: p=<0.05
Using Ratings of Perceived Exertion (RPE) to gauge exercise intensity may lead to overexertion in more than one-third of overweight patients with type 2 diabetes.
May risk overexertion with RPE-guided exercise in overweight T2D; leaves open need for objective intensity validation.
PURPOSE: To examine whether a subjective measure of moderate-intensity exercise (12-13 on Borg's ratings of perceived exertion scale; RPE) corresponds to the target heart rate for moderate-intensity exercise (40-59% heart rate reserve; %HRR) and to determine the characteristics of those for whom RPE does not appropriately estimate exercise intensity. METHODS: ) underwent a maximal exercise test and minute-by-minute HR and RPE were recorded. Linear regression was used to determine the %HRR corresponding to an RPE of 12 and 13 for each individual. RESULTS: -values'<0.05). CONCLUSIONS: RPE appropriately gauges exercise intensity in approximately half of overweight individuals with type 2 diabetes; however, more than one-third of participants were at an increased risk of exercising at a higher than prescribed intensity when using RPE. Future studies should continue to examine the characteristics of individuals for whom RPE appropriately estimates exercise intensity and for those whom it does not.
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Jessica L. Unick (2014) conducted a cross-sectional in Type 2 Diabetes. Ratings of Perceived Exertion (RPE) vs. Target heart rate (40-59% heart rate reserve) was evaluated on Correspondence of RPE 12-13 to 40-59% heart rate reserve (p=<0.05). Ratings of perceived exertion appropriately gauged exercise intensity in approximately half of overweight patients with type 2 diabetes, while over one-third risked exercising at a higher intensity.
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