Center of Physical Performance Studies, Federal University of Paraná, Curitiba, Brazil.
School of Exercise and Nutrition Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Australia.
Percept Mot Skills. 2021 Aug;128(4):1530-1548. doi: 10.1177/00315125211005227. Epub 2021 Apr 4.
The purpose of this study was to verify the effectiveness of the rate of perceived exertion threshold (RPET) for predicting young competitive swimmers' lactate threshold (LT) during incremental testing. We enrolled 13 male athletes ( age = 16, = 0.6 years) in an incremental test protocol consisting of eight repetitions of a 100-meter crawl with 2-minute intervals between each repetition. We collected data for blood lactate concentration ([La]) and Borg scale rate of perceived exertion (RPE) at the end of each repetition. The results obtained were: RPET = 4.98, 1.12 arbitrary units (A.U.) and lactate threshold = 4.24, = 1.12 mmol.L, with [La] and RPE identified by the maximal deviation (Dmax) method without a significant difference ( > 0.05) and large correlations between DmaxLa and DmaxRPE at variables for time (r = 0.64), velocity (r = 0.67) and percentage of personal best time (PB) (r = 0.60). These results suggest that RPET is a good predictor of LT in young competitive swimmers.
本研究旨在验证感觉用力率阈值（RPET）在递增测试中预测年轻竞技游泳运动员乳酸阈（LT）的有效性。我们招募了 13 名男性运动员（年龄=16 岁，=0.6 岁）进行递增测试方案，该方案包括 8 次 100 米爬泳，每次重复之间间隔 2 分钟。我们在每次重复结束时收集血液乳酸浓度（[La]）和 Borg 量表感觉用力率（RPE）的数据。结果如下：RPET=4.98，1.12 任意单位（A.U.），乳酸阈=4.24，=1.12 mmol.L，最大偏差（Dmax）法确定的[La]和 RPE 无显著差异（>0.05），并且时间（r=0.64）、速度（r=0.67）和个人最佳时间百分比（PB）（r=0.60）等变量的 DmaxLa 和 DmaxRPE 之间存在较大相关性。这些结果表明，RPET 是年轻竞技游泳运动员 LT 的良好预测指标。
