Kilpatrick Marcus W, Robertson Robert J, Powers Jeremy M, Mears Jennifer L, Ferrer Nicholas F
School of Physical Education and Exercise Science, University of South Florida, Tampa, FL 33620, USA.
Med Sci Sports Exerc. 2009 Mar;41(3):682-7. doi: 10.1249/MSS.0b013e31818a0f09.
Ratings of perceived exertion (RPE) were developed to provide a subjective estimation of exercise intensity during exercise but are also used to produce exercise intensities and to report the intensity of completed exercise sessions.
To determine the relationship between RPE assessed before, during, and after trials of RPE-based self-regulated aerobic exercise.
Twenty-six participants (10 males and 16 females) were tested for aerobic fitness. Participants completed three 30-min trials of treadmill exercise at a self-selected intensity corresponding to verbal prescriptions of light, moderate, and vigorous. Participants were instructed to adjust treadmill speed every 5 min to maintain the prescribed intensity. RPE using the OMNI picture system was taken immediately before, every 5 min during, immediately after, and 15 min after exercise.
Treadmill speed increased during the moderate trial, and HR increased during all trials (P < 0.05). Predicted RPE and session RPE were higher than the average RPE for all sessions (P < 0.05) but not different than RPE values obtained at the end of the 30-min trials (P > 0.05).
Findings suggest that predicted and session RPE are well matched to the exertion associated with the finishing minute of exercise sessions but are poorly matched to the majority of the exercise session. In-task RPE values tend to drift throughout exercise despite little or no change in treadmill speed and instructions to self-regulate exercise intensity. These findings indicate that RPE may be linked to exercise duration during self-regulated exercise. Additionally, session RPE ratings taken after exercise tend to reflect the close of exercise rather than the exertion associated with the exercise session as a whole.
主观用力程度分级（RPE）旨在对运动期间的运动强度进行主观评估，但也用于设定运动强度并报告已完成运动时段的强度。
确定基于RPE的自我调节有氧运动试验前、中、后评估的RPE之间的关系。
对26名参与者（10名男性和16名女性）进行有氧适能测试。参与者以自我选择的强度完成三次30分钟的跑步机运动试验，强度分别对应轻度、中度和剧烈运动的口头指令。要求参与者每5分钟调整一次跑步机速度以维持规定强度。在运动前即刻、运动期间每5分钟、运动后即刻以及运动后15分钟，使用OMNI图片系统记录RPE。
在中度试验期间跑步机速度增加，在所有试验期间心率均增加（P<0.05）。预测RPE和时段RPE高于所有时段的平均RPE（P<0.05），但与30分钟试验结束时获得的RPE值无差异（P>0.05）。
研究结果表明，预测RPE和时段RPE与运动时段最后一分钟的用力程度匹配良好，但与运动时段的大部分时间匹配不佳。尽管跑步机速度几乎没有变化且有自我调节运动强度的指令，但任务中的RPE值在整个运动过程中往往会漂移。这些发现表明，RPE可能与自我调节运动期间的运动持续时间有关。此外，运动后记录的时段RPE评分往往反映运动的结束，而不是与整个运动时段相关的用力程度。
