文章基本信息

标题：Perceived exertion threshold predicts the second ventilatory threshold in elite mountain runners
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作者：POLIANA DE LIMA COSTA ; LUANA LOSS. CABRAL ; JUAN HENRIQUE SZYMCZAK CONDE 等
期刊名称：Journal of Physical Education and Sport
印刷版ISSN：2247-8051
电子版ISSN：2247-806X
出版年度：2020
卷号：20
期号：3
页码：1272-1278
DOI：10.7752/jpes.2020.03177
语种：English
出版社：University of Pitesti
摘要：Gold standards methodologies for accessing physiological transition thresholds (PTT) are expensive or invasive measures,as ventilatory and metabolic analyses. Rating of Perceived exertion (RPE) has been appliedwith athletes during physical evaluation and/or daily training since is a simple and low-cost tool which measures the internal load of the athletes. The use of DmaxRPE seems to be a promising methodology to use in training,although,the effectiveness of this methodology has never been previously evaluated. Then,the aim of the present study was to assessthe efficacy of Ratings of Perceived Exertion threshold identified by the Dmax method (DmaxRPE) for predicting second physiological transition thresholds in elite mountain runners. Twelve elite male mountain runners’ athletes (age 34.08 ± 6.68 years;height,1.76 ± 7.76 m;weight,73.65 ± 9.16 kg;VO2max,68.49 ± 5.03 ml·min-1 ·kg-1) with 10.0 ± 7.1 years of experience in long-distance races underwent anincrementaltest on a treadmill. There were no differences between DmaxRPE,ventilatory threshold (VT) and heart rate deflection point (HRDP) (P>0.05). However,significant differences were observedbetween fixed 5.8 RPE score and the DmaxRPE,VT,and HRDP methods (p < 0.05). In addition,strong associations were observed between VT and DmaxRPE for HR (r = 0.79;p < 0.05) and %HR (r = 0.87;p < 0.05). Bland-Altman plots showed low bias and good agreement between DmaxRPE and VT. The results suggest that DmaxRPE is a valuable tool for predicting VT and should be used in future studies since it is a low-cost and easy-to-apply method.
关键词：Anaerobic threshold;DmaxRPE;Perception of effort;Athletes;Performance