Repeated high-intensity interval exercise shortens the positive effect on executive function during post-exercise recovery in healthy young males
Repeated high-intensity interval exercise shortens the positive effect on executive function during post-exercise recovery in healthy young males
复制标题
重复高强度间歇运动可缩短健康年轻男性运动后恢复过程中执行功能的积极影响
DOI：
10.1016/j.physbeh.2016.03.029
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发表时间：
2016
影响因子：
2.9
通讯作者：
and Hashimoto T
中科院分区：
文献类型：
--
作者：
Tsukamoto H;Suga T;Takenaka S;Tanaka D;Takeuchi T;Hamaoka T;Isaka T;Ogoh S;and Hashimoto T
一次有氧运动可以改善执行功能（EF），但只能维持很短的时间。与单次有氧运动相比，我们最近发现高强度间歇运动（HIIE）可以保持EF的更长时间的改善。然而，不同的运动模式对EF的影响机制尚不清楚。本研究的目的是验证我们的假设，即运动诱导的乳酸产生量及其积累会影响运动期间和运动后的人脑功能，从而影响运动后EF。10名健康男性受试者进行自行车运动。HIIE方案包括4次在90%峰值VO2下的4分钟发作，以及在60%峰值VO2下的3分钟主动恢复期。通过重复HIIE两次来操纵运动期间产生的乳酸的量，在第一HIIE和第二HIIE之间休息60分钟。为了评估EF，进行颜色词Stroop任务，并获得反向Stroop干扰分数。第1次HIIE后即刻的EF较运动前显著改善，且改善的EF在运动后恢复的40 min内持续。然而，对于第二次HIIE，改善的EF仅持续10分钟的运动后恢复期，尽管相同的运动性能。此外，在HIIE期间和之后，由第二HIIE诱导的葡萄糖和乳酸积累显著低于由第一HIIE诱导的葡萄糖和乳酸积累。此外，有乳酸和EF之间的反比关系，通过绘制乳酸水平的变化对EF的变化，从运动前在运动后恢复的后期。这些发现表明，HIIE的反复发作可能会减少乳酸积累，可能会抑制运动后恢复期间运动对EF的积极影响。
A single bout of aerobic exercise improves executive function (EF), but only for a short period. Compared with a single bout of aerobic exercise, we recently found that high-intensity interval exercise (HIIE) could maintain a longer improvement in EF. However, the mechanism underlying the effect of different exercise modes on the modifications of EF remains unclear. The purpose of the current investigation was to test our hypothesis that the amount of exercise-induced lactate production and its accumulation affects human brain function during and after exercise, thereby affecting post-exercise EF. Ten healthy male subjects performed cycle ergometer exercise. The HIIE protocol consisted of four 4-min bouts at 90% peak VO2with a 3-min active recovery period at 60% peak VO2. The amount of lactate produced during exercise was manipulated by repeating the HIIE twice with a resting period of 60 min between the 1st HIIE and 2nd HIIE. To evaluate EF, a color-word Stroop task was performed, and reverse-Stroop interference scores were obtained. EF immediately after the 1st HIIE was significantly improved compared to that before exercise, and the improved EF was sustained during 40 min of the post-exercise recovery. However, for the 2nd HIIE, the improved EF was sustained for only 10 min of the post-exercise recovery period, despite the performance of the same exercise. In addition, during and following HIIE, the glucose and lactate accumulation induced by the 2nd HIIE was significantly lower than that induced by the 1st HIIE. Furthermore, there was an inverse relationship between lactate and EF by plotting the changes in lactate levels against changes in EF from pre-exercise during the late phase of post-exercise recovery. These findings suggested the possibility that repeated bouts of HIIE, which decreases lactate accumulation, may dampen the positive effect of exercise on EF during the post-exercise recovery.