Kaminsky L A, Padjen S, LaHam-Saeger J
Exercise Science and Cardiac Rehabilitation Program, Northeastern Illinois University, Chicago.
Br J Sports Med. 1990 Jun;24(2):95-8. doi: 10.1136/bjsm.24.2.95.
In this study the excess post-exercise oxygen consumption (EPOC), and related metabolic measures, following a 50 minute run compared to two 25 minute runs all at 70 per cent of peak VO2 in six women were investigated. Open-circuit spirometry procedures were used and appropriate control conditions were maintained for all trials. Following exercise, VO2 returned to baseline within 30 minutes for all three exercise trials. Magnitude of EPOC was also similar after all runs. However, the combined magnitude (expressed in kcals) of the two 25 minute runs was significantly greater than the continuous 50 minute run (13.88 vs 6.39). Heart rate remained elevated above baseline, and respiratory exchange ratio was lower than baseline 30 minutes after exercise. It is concluded that split exercise sessions can significantly increase post-exercise caloric expenditure. However, the overall magnitude of the increase is small.
在本研究中，对六名女性进行了调查，比较了一次50分钟跑步与两次25分钟跑步（均以峰值摄氧量的70%进行）后的运动后过量氧耗（EPOC）及相关代谢指标。采用开路式肺活量测定程序，并在所有试验中维持适当的对照条件。运动后，所有三次运动试验的摄氧量在30分钟内均恢复到基线水平。所有跑步后的EPOC幅度也相似。然而，两次25分钟跑步的总幅度（以千卡表示）显著大于持续50分钟的跑步（13.88对6.39）。运动后30分钟，心率仍高于基线，呼吸交换率低于基线。得出的结论是，分开的运动时段可显著增加运动后的热量消耗。然而，增加的总体幅度较小。
