Sedlock D A
Exercise Physiology Laboratory, Purdue University, West Lafayette, IN, USA.
J Sports Med Phys Fitness. 1994 Dec;34(4):336-42.
This study was designed to investigate the effect of fitness level on excess postexercise oxygen consumption (EPOC) in five endurance trained and five sedentary male volunteers. The possible influence of differences in body weight and exercise energy expenditure were controlled by employing a weight-supported (cycle ergometer), 300 kilocalorie exercise. Exercise intensity was equal to 50% of each subject's previously determined peak oxygen uptake (VO2). VO2 was measured for 1 hr prior to exercise to establish the baseline value, and continuously in the postexercise period until the baseline value was achieved. Duration of EPOC was 16.6 +/- 3.1 minutes and 20.4 +/- 7.8 minutes in the fit and unfit groups, respectively (p > 0.05). Magnitude of EPOC, which was not significantly different between the groups, averaged 12.2 +/- 3.1 kcal in the fit and 12.2 +/- 4.3 kcal in the unfit group. The results suggest that EPOC following a weight-supported exercise of an intensity and duration frequently used by individuals who begin an exercise program for weight control is not compromised by differences in body weight or fitness level.
本研究旨在调查体能水平对五名耐力训练男性志愿者和五名久坐男性志愿者运动后过量氧耗（EPOC）的影响。通过采用体重支持（自行车测力计）的300千卡运动，控制了体重差异和运动能量消耗的可能影响。运动强度等于每个受试者先前测定的峰值摄氧量（VO2）的50%。在运动前测量VO2 1小时以建立基线值，并在运动后持续测量直至达到基线值。EPOC的持续时间在体能良好组和体能不佳组分别为16.6±3.1分钟和20.4±7.8分钟（p>0.05）。两组之间EPOC的幅度无显著差异，体能良好组平均为12.2±3.1千卡，体能不佳组平均为12.2±4.3千卡。结果表明，对于开始进行体重控制运动计划的个体，经常采用的强度和持续时间的体重支持运动后的EPOC不受体重或体能水平差异的影响。
