Garcin M, Billat V
Laboratoire d'Etudes de la Motricité Humaine, Faculté des Sciences du Sport et de l'Education Physique, Université de Lille 2, Ronchin, France.
Percept Mot Skills. 2001 Dec;93(3):661-71. doi: 10.2466/pms.2001.93.3.661.
The present purpose was to study the relationships between perceived exertion (RPE, ETL) and exercise duration for all-out runs eliciting vVO2 max. 12 endurance-trained men performed three exhausting exercises on an indoor track. The first test was an incremental exercise to measure their maximal oxygen uptake (VO2 max), the velocity associated with VO2 max (vVO2 max), the velocity of the lacate concentration threshold (vLT) and the velocity delta 50 (vdelta50: the velocity halfway between vVO2 max and vLT). The second and third tests were a constant load all-out run at vVO2 max and vdelta50 to measure the time to exhaustion at these intensities (tlim vVO2 max and tlim vdelta50, respectively). vdelta50 corresponded to 90.1 +/- 2.5% vVO2 max; tlim vVO2 max and tlim vdelta50 were equal to 286 +/- 71 sec. and 547+/- 157 sec., respectively. For a same given relative time (%tlim), athletes perceived exercise as harder and felt that they could endure less for vVO2 max than vdelta50. When subjects began to perceive exercise as "hard" (RPE = 15), they had run for only 36.4 +/- 26.8%tlim at vVO2 max, whereas they had run for 46.1 +/- 15.7 %tlim at vdelta50. These results indicate that RPE and ETL scales were a combined subjective estimation of both intensity and exercise duration for all-out runs at 90 and 100% vVO2 max. Therefore, this scale could be used to assess duration as well as intensity of exercise for the practical application in sport. Moreover, it could be suggested that exercise duration can be prescribed as a function of perceived exertion for healthy normal people. Consequently, perceived exertion could be an important tool to individualize the prescription of a training program.
本研究目的是探讨在引发最大摄氧量（vVO₂max）的全力跑中，主观用力感觉（RPE、ETL）与运动持续时间之间的关系。12名耐力训练的男性在室内跑道上进行了三项力竭运动。第一次测试是递增运动，以测量他们的最大摄氧量（VO₂max）、与VO₂max相关的速度（vVO₂max）、乳酸浓度阈值速度（vLT）以及速度差值50（vdelta50：vVO₂max和vLT之间的中间速度）。第二次和第三次测试是以vVO₂max和vdelta50进行恒定负荷全力跑，以测量在这些强度下的力竭时间（分别为tlim vVO₂max和tlim vdelta50）。vdelta50相当于vVO₂max的90.1±2.5%；tlim vVO₂max和tlim vdelta50分别等于286±71秒和547±157秒。对于相同的给定相对时间（%tlim），运动员感觉vVO₂max时的运动比vdelta50时更费力，并且觉得自己能够忍受的时间更短。当受试者开始感觉运动“费力”（RPE = 15）时，在vVO₂max时他们只跑了36.4±26.8%tlim，而在vdelta50时他们跑了46.1±15.7%tlim。这些结果表明，RPE和ETL量表是在90%和100%vVO₂max的全力跑中，对强度和运动持续时间的综合主观估计。因此，该量表可用于评估运动持续时间以及强度，以便在体育实践中应用。此外，可以建议将运动持续时间规定为健康正常人主观用力感觉的函数。因此，主观用力感觉可能是使训练计划个性化的重要工具。
