Tsukamoto Hayato, Suga Tadashi, Takenaka Saki, Takeuchi Tatsuya, Tanaka Daichi, Hamaoka Takafumi, Hashimoto Takeshi, Isaka Tadao
Research Organization of Science and Technology, Ritsumeikan University, Shiga, Japan.
Graduate School of Sport and Health Science, Ritsumeikan University, Shiga, Japan.
PLoS One. 2017 Sep 6;12(9):e0184075. doi: 10.1371/journal.pone.0184075. eCollection 2017.
The positive effect of acute resistance exercise on executive function, such as inhibitory control (IC), is poorly understood. Several previous studies have demonstrated this effect using whole-body resistance exercise. However, it remains unclear whether localized resistance exercise performed using only limited muscle groups could also acutely improve IC. Thus, the present study examined the effect of an acute bout of localized resistance exercise on IC. Twelve healthy men performed a color-word Stroop task (CWST) before and immediately after the experimental conditions, which consisted of 2 resistance exercises and a resting control (CON). Bilateral knee extension was used to create 2 resistance exercise conditions: light-intensity resistance exercise (LRE) and high-intensity resistance exercise (HRE) conditions, which were 40% and 80% of one-repetition maximum, respectively. The resistance exercise session was programmed for 6 sets with 10 repetitions per set. The CWST-measured IC was significantly improved immediately after both LRE and HRE, but it did not improve immediately after CON. However, the improved IC was significantly greater in HRE than in LRE. The present findings showed that IC could be rapidly improved by an acute bout of localized resistance exercise, especially with high-intensity. Therefore, we suggest that in addition to whole-body resistance exercise, localized resistance exercise performed using limited muscle groups may be sufficient for improving IC.
急性抗阻运动对执行功能（如抑制控制，IC）的积极作用目前了解甚少。此前的多项研究通过全身抗阻运动证实了这种作用。然而，仅使用有限肌肉群进行的局部抗阻运动是否也能急性改善IC仍不清楚。因此，本研究探讨了一次急性局部抗阻运动对IC的影响。12名健康男性在实验条件前后立即进行了色词Stroop任务（CWST），实验条件包括2种抗阻运动和一个静息对照（CON）。采用双侧膝关节伸展来创建2种抗阻运动条件：低强度抗阻运动（LRE）和高强度抗阻运动（HRE）条件，分别为一次重复最大值的40%和80%。抗阻运动环节设定为6组，每组10次重复。LRE和HRE后，CWST测量的IC均立即显著改善，但CON后未改善。然而，HRE后IC的改善显著大于LRE。本研究结果表明，一次急性局部抗阻运动，尤其是高强度运动，可迅速改善IC。因此，我们建议，除了全身抗阻运动外，仅使用有限肌肉群进行的局部抗阻运动可能也足以改善IC。
