Mekari Said, Earle Meghan, Martins Ricardo, Drisdelle Sara, Killen Melanie, Bouffard-Levasseur Vicky, Dupuy Olivier
Department of Kinesiology, Acadia University, Wolfville, NS B4P 2R6, Canada.
Sector of Education and Kinesiology, University of Moncton, Edmundston Campus, Edmundston, NB E3V 2S8, Canada.
Brain Sci. 2020 Feb 4;10(2):81. doi: 10.3390/brainsci10020081.
To improve cognitive function, moving the body is strongly recommended; however, evidence regarding the proper training modality is still lacking. The purpose of this study was therefore to assess the effects of high intensity interval training (HIIT) compared to moderate intensity continuous exercise (MICE), representing the same total training load, on improving cognitive function in healthy adults. It was hypothesized that after 6 weeks (3 days/week) of stationary bike training, HIIT would improve executive functions more than MICE. Twenty-five participants exercised three times a week for 6 weeks after randomization to the HIIT or MICE training groups. Target intensity was 60% of peak power output (PPO) in the MICE group and 100% PPO in the HIIT group. After training, PPO significantly increased in both the HIIT and MICE groups (9% and 15%, < 0.01). HIIT was mainly associated with a greater improvement in overall reaction time in the executive components of the computerized Stroop task (980.43 ± 135.27 ms vs. 860.04 ± 75.63 ms, < 0.01) and the trail making test (42.35 ± 14.86 s vs. 30.35 ± 4.13 s, < 0.01). T exercise protocol was clearly an important factor in improving executive functions in young adults.
为改善认知功能，强烈建议进行身体运动；然而，关于适当训练方式的证据仍然不足。因此，本研究的目的是评估高强度间歇训练（HIIT）与中等强度持续运动（MICE）相比，在相同总训练负荷下，对健康成年人认知功能改善的影响。假设经过6周（每周3天）的固定自行车训练后，HIIT比MICE更能改善执行功能。25名参与者在随机分配到HIIT或MICE训练组后，每周进行3次运动，持续6周。MICE组的目标强度为峰值功率输出（PPO）的60%，HIIT组为100%PPO。训练后，HIIT组和MICE组的PPO均显著增加（分别为9%和15%，<0.01）。HIIT主要与计算机化Stroop任务执行部分的整体反应时间有更大改善相关（980.43±135.27毫秒对860.04±75.63毫秒，<0.01）以及连线测验（42.35±14.86秒对30.35±4.13秒，<0.01）。该运动方案显然是改善年轻人执行功能的一个重要因素。
