Abstract
266 The effect of gender on ratings of perceived exertion for the overall body (RPE-O), legs (RPE-L) and chest (RPE-C) was determined at both a relative (% VO2max/peak) and absolute (VO2; ml·kg−1·min−1 or 1 min−1) criterion oxygen uptake. Nine males (26.3 yr; VO2max, 50.4 ml·kg−1·min−1) and ten females (21.6 yr, VO2max, 41.5 ml·kg−1·min−1) were compared with a perceptual estimation paradigm using a weight bearing (treadmill) and non-weight bearing (cycle) exercise mode. VO2 was determined at the end of each 2 min stage of a progressively incremented protocol for both modes. RPE was determined by the Borg 15-category scale. Using linear regression for each male and female subject, RPE-O, RPE-L and RPE-C were calculated for: (A) Treadmill-60, 75 and 90% VO2max; and 22, 27 and 32 ml·kg−1·min−1 and (B) Cycle - 60, 75 and 90% VO2peak; and 1.3, 1.6 and 1.9 l·min−1. Comparisons of RPE between gender at both relative and absolute criterion VO2 are listed in the Table. During both modes, RPE-O, RPE-L and RPE-C were higher (p<0.05) in females than males when compared at the absolute VO2 criteria. Gender differences in RPE were not found at the relative VO2 criteria for both modes. Gender comparisons of RPE should distinguish between relative and absolute criterion VO2 when using both weight bearing and non-weight bearing exercise.Table
Published Version
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