Clapp J F, Little K D
Department of Reproductive Biology, MetroHealth Medical Center, Cleveland, OH 44109.
Med Sci Sports Exerc. 1994 Aug;26(8):1041-6.
This study was designed to test the hypothesis that there are regimen-specific differences in the thermal, metabolic, and cardiovascular responses of nonpregnant women when they perform their chosen type of aerobics at their usual performance level. Thirty-six instructors and 53 participants were studied while performing their chosen aerobics regimen under simulated field conditions using oxygen consumption as the index of exercise intensity. Under these conditions no significant differences were observed in the physiological response to low impact, high impact, or step regimens. However, although their ratings of perceived exertion were lower, the participants worked at a much higher exercise intensity than the instructors (76 +/- 1 vs 62 +/- 2% VO2max). As a result they attained a higher respiratory exchange ratio (0.96 vs 0.90), rectal temperature (38.62 vs 38.12 degrees C), and blood levels of glucose (5.70 vs 4.95 mmol.l-1), lactate (3.65 vs 1.60 mmol.l-1), and norepinephrine (2656 vs 1191 pg.ml-1). We conclude that both intensity and physiological response to aerobics are individual specific not regimen specific and that participants consistently underestimate their level of performance.
非孕妇在以其通常的运动水平进行所选类型的有氧运动时，其热、代谢和心血管反应存在特定运动方案的差异。在模拟现场条件下，以耗氧量作为运动强度指标，对36名教练和53名参与者进行了所选有氧运动方案的研究。在这些条件下，未观察到低强度、高强度或踏板运动方案的生理反应有显著差异。然而，尽管参与者的主观用力感觉评分较低，但他们的运动强度比教练高得多（76±1对62±2%最大摄氧量）。结果，他们获得了更高的呼吸交换率（0.96对0.90）、直肠温度（38.62对38.12℃）以及血液中的葡萄糖（5.70对4.95mmol·l-1）、乳酸（3.65对1.60mmol·l-1）和去甲肾上腺素（2656对1191pg·ml-1）水平。我们得出结论，有氧运动的强度和生理反应都是个体特异性的，而非运动方案特异性的，并且参与者一直低估了自己的运动水平。
