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Prediction of peak oxygen uptake from sub‐maximal ratings of perceived exertion elicited during a graded exercise test in obese women
Author(s) -
Coquart Jeremy B. J.,
Lemaire Christine,
Dubart AlainEric,
Douillard Claire,
Luttenbacher DavidPol,
Wibaux Frederique,
Garcin Murielle
Publication year - 2009
Publication title -
psychophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.661
H-Index - 156
eISSN - 1469-8986
pISSN - 0048-5772
DOI - 10.1111/j.1469-8986.2009.00863.x
Subject(s) - perceived exertion , psychology , vo2 max , exertion , physical therapy , test (biology) , cardiology , medicine , heart rate , blood pressure , paleontology , biology
The purpose was to assess the validity of predicting peak oxygen uptake from Ratings of Perceived Exertion (RPE)≤15, during a graded exercise test (GXT), in obese women. Forty‐three obese women performed GXT to volitional exhaustion. During GXT, oxygen uptake and RPE were measured. Individual linear regressions between and RPE≤15 were extrapolated to RPE 20 in order to predict . Actual and predicted were not significantly different (13.9±3.0 vs 14.2±3.3 ml kg −1 min −1 , respectively; p =.26). The Pearson product moment correlation between actual and predicted was high ( r =0.82). The 95% limits of agreement analysis on these values (bias±1.96SD) was −0.3±3.7 ml kg −1 min −1 . Results suggested that RPE≤15 elicited during a sub‐maximal GXT provides accurate prediction. Therefore, it is not necessary to perform GXT to voluntary exhaustion to determine in obese women.