Percept Mot Skills. 2013 Dec;117(3):881-91. doi: 10.2466/27.29.PMS.117x30z8.
The purpose of this investigation was to assess the effect of resistance exercise performed to volitional failure on ratings of perceived exertion (RPE) using power as an indication of fatigue. 12 male participants (M age = 21.9 yr., SD = 1.3) performed one set of back squats at three different intensities (50%, 70%, and 90% of one repetition maximum) for both a pre-determined number of repetitions (3) and to volitional failure. RPE was significantly different between sets at 50%, 70%, and 90% when performed to a pre-determined number of repetitions, but not during volitional failure. A decrease in power between the first and the last repetitions in the volitional failure sets suggests that fatigue may confound the relationship between RPE and intensity.
本研究旨在评估使用力量作为疲劳指标，在达到力竭时进行抗阻运动对主观体力感觉等级（RPE）的影响。12 名男性参与者（M 年龄=21.9 岁，SD=1.3）在三种不同强度（50%、70%和 90%一次最大重复次数）下进行一组深蹲，每组重复次数为 3 次或达到力竭。当以预定重复次数进行时，在 50%、70%和 90%时，组间 RPE 差异显著，但在力竭时则不显著。在力竭组中，从第一组到最后一组的功率下降表明，疲劳可能会混淆 RPE 和强度之间的关系。
