Houston M E, Wilson D M, Green H J, Thomson J A, Ranney D A
Eur J Appl Physiol Occup Physiol. 1981;46(3):283-91. doi: 10.1007/BF00423404.
To test the hypothesis that a smaller quantity of high intensity (HI) as opposed to a larger quantity of moderate intensity (MI) swim training would result in adaptations more specific to the short performance times of swimming competitions, two groups of elite university swimmers were tested before and after 6.5 weeks of specific HI or MI intermittent swim training. In training, swimming times were faster and blood lactate concentrations were higher (10.2 vs. 7.5 mM) during HI compared to MI training. No significant differences were observed between the two groups for any of the variables measured, before or after training. However, significant increases with training were observed for the activities of hexokinase, phosphorylase, phosphofructokinase, succinate dehydrogenase, and 3-hydroxyacyl CoA dehydrogenase in the deltoid, but not the gastrocnemius muscles. Training resulted in significant increases in VO2 max during treadmill running, but not during tethered swimming. It is concluded that a larger quantity of MI swim training results in physiological adaptations that are similar to those obtained with a smaller quantity of HI training, at least over a relatively short training period.
与大量中等强度（MI）游泳训练相比，少量高强度（HI）游泳训练会产生更适合游泳比赛短时间表现的适应性变化，两组精英大学游泳运动员在进行6.5周特定的HI或MI间歇游泳训练前后接受了测试。在训练中，与MI训练相比，HI训练期间游泳时间更快，血乳酸浓度更高（10.2对7.5 mM）。训练前后，两组在任何测量变量上均未观察到显著差异。然而，三角肌中己糖激酶、磷酸化酶、磷酸果糖激酶、琥珀酸脱氢酶和3-羟酰基辅酶A脱氢酶的活性随训练显著增加，而腓肠肌中未出现这种情况。训练导致跑步机跑步时的最大摄氧量显著增加，但在系绳游泳时未增加。得出的结论是，至少在相对较短的训练期内，大量的MI游泳训练产生的生理适应性变化与少量HI训练所获得的相似。
