Department of Health and Kinesiology, Purdue University, United States.
Department of Health and Kinesiology, Purdue University, United States.
J Sci Med Sport. 2023 Jun;26(6):316-321. doi: 10.1016/j.jsams.2023.05.003. Epub 2023 May 19.
Determine the acute effect of high-intensity interval training as an alternative of moderate-intensity aerobic exercise on behavioral and neuroelectric measures of inhibitory control in preadolescent children.
A randomized controlled trial.
Seventy-seven children (8-10 years) were randomly assigned to three groups to complete a modified flanker task to measure behavioral and neuroelectric (N2/P3 of event-related potential and frontal theta oscillations) outcomes of inhibitory control before and after a 20-min session of high-intensity interval training (N = 27), moderate-intensity aerobic exercise (N = 25), and sedentary reading activity (N = 25).
The accuracy of the inhibitory control performance improved over time across three groups but response time was selectively improved only for the high-intensity interval training group. Analysis on N2 showed a time-related decrease in N2 latency selectively for the high-intensity interval training but not the other groups. Analysis on P3 showed a time-related decrease in P3 amplitude for the sedentary and high-intensity interval training groups while the moderate-intensity aerobic exercise group exhibited maintained P3 amplitude from the pretest to the posttest and a larger P3 amplitude compared with the high-intensity interval training group at the posttest. While there was evidence of conflict-induced modulation of frontal theta oscillations, such an effect was unaffected by exercise interventions.
A single bout of high-intensity interval training has facilitating effects on the processing speed involving inhibitory control in preadolescent children but not neuroelectric index of attention allocation that only benefited from moderate-intensity aerobic exercise.
确定高强度间歇训练作为替代中等强度有氧运动对青春期前儿童抑制控制的行为和神经电生理测量的急性影响。
随机对照试验。
77 名儿童（8-10 岁）被随机分配到三组，完成改良的侧抑制任务，以测量抑制控制的行为和神经电生理（事件相关电位的 N2/P3 和额部θ振荡）结果，在 20 分钟的高强度间歇训练（N=27）、中等强度有氧运动（N=25）和久坐阅读活动（N=25）后。
三组的抑制控制性能的准确性随着时间的推移而提高，但只有高强度间歇训练组的反应时间得到了选择性的提高。N2 的分析显示，高强度间歇训练组的 N2 潜伏期随时间呈相关下降，但其他组没有。P3 的分析显示，久坐和高强度间歇训练组的 P3 振幅随时间呈相关下降，而中等强度有氧运动组的 P3 振幅从预测试到后测试保持不变，且在后测试时的 P3 振幅大于高强度间歇训练组。虽然有证据表明额部θ振荡存在冲突诱导的调制，但这种效应不受运动干预的影响。
单次高强度间歇训练对青春期前儿童抑制控制的加工速度有促进作用，但对注意力分配的神经电生理指标没有影响，只有中等强度有氧运动才能获益。
