A perceptually regulated, graded exercise test predicts peak oxygen uptake during treadmill exercise in active and sedentary participants

作者：Eston Roger^*; Evans Harrison; Faulkner James; Lambrick Danielle; Al Rahamneh Harran; Parfitt Gaynor

来源：European Journal of Applied Physiology, 2012, 112(10): 3459-3468.

DOI：10.1007/s00421-012-2326-8

• Ratings of perceived exertion
• Perceptually regulated exercise
• Maximal aerobic capacity
• Prediction
• Treadmill ergometry

The validity of predicting peak oxygen uptake () in sedentary participants from a perceptually regulated exercise test (PRET) is limited to two cycle ergometry studies. We assessed the validity of a treadmill-based PRET. Active (n = 49; 40.7 +/- A 13.8 years) and sedentary (n = 26; 33.4 +/- A 13.2 y) participants completed two PRETS (PRET 1 and PRET2), requiring a change in speed or incline corresponding to ratings of perceived exertion (RPE) 9, 11, 13 and 15. Extrapolation of RPE: data to RPE 19 and 20 from the RPE 9-13 and 9-15 ranges were used to estimate , and compared to from a graded exercise test (GXT). The :heart rate (HR) data (a parts per thousand yenRPE 15) from the GXT were also extrapolated to age-predicted maximal HR (HRmax(pred)) to provide further estimation of . ANOVA revealed no significant differences between predictions from the RPE 9-15 range for PRET 1 and PRET 2 when extrapolated to RPE 19 in both active (54.3 +/- A 7.4; 52.9 +/- A 8.1 ml kg(-1) min(-1)) and sedentary participants (34.1 +/- A 10.2; 34.2 +/- A 9.6 ml kg(-1) min(-1)) and no difference between the HRmax(pred) method and measured from the GXT for active (53.3 +/- A 10.0; 53.9 +/- A 7.5 ml kg(-1) min(-1), respectively) and sedentary participants (33.6 +/- A 8.4, 34.4 +/- A 7.0 ml kg(-1) min(-1), respectively). A single treadmill-based PRET using RPE 9-15 range extrapolated to RPE 19 is a valid means of predicting in young and middle to older-aged individuals of varying activity and fitness levels.

• 出版日期2012-10