EFFECT OF TRAINING ON THE RATING OF PERCEIVED EXERTION AT THE VENTILATORY THRESHOLD
EFFECT OF TRAINING ON THE RATING OF PERCEIVED EXERTION AT THE VENTILATORY THRESHOLD
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DOI：
10.1007/bf00640645
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发表时间：
1987-01-01
影响因子：
3
通讯作者：
COLLINS, MA
中科院分区：
文献类型：
--
作者：
HILL, DW;CURETON, KJ;COLLINS, MA
The purpose of this study was to determine the effect of training on the rating of perceived exertion (RPE) at the ventilatory threshold. College students were assigned to either training (n = 17) or control (n = 10) groups. Trainers completed 18 interval training sessions (five .times. 5min cycling at 90-100% .ovrhdot.VO2 max) and 8 continuous training sessions (40 min running or cycling) in 6 weeks. Pre- and post-training, cardiorespiratory metabolic, and perceptual variables were measured at the ventilatory threshold during graded exercise tests on the cycle ergometer. Ventilatory threshold was that point above which .ovrhdot.VE .cntdot. .ovrhdot.VOO2-1increased abruptly relative to work rate. Post-training means of trained and control subjects were compared using analysis of covariance, with pre-training values as covariates. Following training, the the adjusted means for the trained subjects were significantly greater than (p < 0.05) than for controls for .ovrhdot.VO2 max (6%), and for work rate (20%), .ovrhdot.VO2 (23%), and % .ovrhdot.VO2 max (13%) at the ventilatory threshold. However, adjusted means for RPE at the ventilatory threshold were not significantly different (2%). Both before and after training, exercise at the ventilatory threshold was perceived as ''somewhat hard'' to ''hard'' (RPE = 13-15) by both groups. The relationship between RPE and % .ovrhdot.VO2 maX was altered by training, with trained subjects having lower RPE at a given % .ovrhdot.VO2 max. It is concluded that RPE at the ventilatory threshold is not affected by training, despite that after training the ventilatory threshold occurs at a higher work rate and is associated with higher absolute and relative metabolic and cardiorespiratory demands.
