Fox E L, Bartels R L, Klinzing J, Ragg K
Med Sci Sports. 1977 Fall;9(3):191-6.
The metabolic responses of 30 college-aged males were compared following high power (30-sec runs with 19 repetitions-Group HP) and low power (120-sec runs with 7 repetitions-Group LP) interval training programs (8-wk, 3 days/wk). Measurements included: maximal aerobic power (Vo2max, open circuit spirometry); maximal lactacid capacity (net-LAmax, blood LA accumulation following exhaustive exercise); net energy production (net Vo2 and netLA) following a 2-min run that was exhaustive before but not following training; and maximal muscular power (stair-climbing procedure). The results indicated: 1) significant but equal increases in Vo2 max in both groups; 2) no change in either group in netLAmax; 3) net Vo2 during the 2-min run was unchanged, however, netLA was significantly greater in Group LP; 4) no changes in either group in muscular power. It was concluded that low power and high power output interval training programs elicit similar changes in maximal aerobic and anaerobic metabolism, and that the physiological and or biochemical changes responsible for lowered lactic acid production during heavy, but submaximal exercise following training are produced to a greater extent by the low power program.
对30名大学年龄男性在进行高功率（30秒跑，19次重复——高功率组）和低功率（120秒跑，7次重复——低功率组）间歇训练计划（为期8周，每周3天）后的代谢反应进行了比较。测量指标包括：最大有氧功率（最大摄氧量，开路肺量计法）；最大乳酸能力（净乳酸最大值，力竭运动后血乳酸积累量）；在训练前力竭但训练后不力竭的2分钟跑步后的净能量产生（净最大摄氧量和净乳酸）；以及最大肌肉力量（爬楼梯程序）。结果表明：1）两组的最大摄氧量均显著且等量增加；2）两组的净乳酸最大值均无变化；3）2分钟跑步期间的净最大摄氧量未改变，然而，低功率组的净乳酸显著更高；4）两组的肌肉力量均无变化。得出的结论是，低功率和高功率输出间歇训练计划在最大有氧和无氧代谢方面引起相似的变化，并且在训练后重度但次最大运动期间导致乳酸产生降低的生理和/或生化变化在更大程度上是由低功率训练计划产生的。
