Department of Kinesiology, University of North Carolina at Greensboro, Greensboro, North Carolina, USA.
Department of Kinesiology, Michigan State University, East Lansing, Michigan, USA.
Psychophysiology. 2018 Mar;55(3). doi: 10.1111/psyp.13017. Epub 2017 Oct 4.
The present study investigated the effect of a 9-month physical activity (PA) intervention on children's cardiorespiratory fitness levels and neuroelectric indices of conflict monitoring (i.e., error-related negativity, ERN). Four hundred twenty-eight preadolescent children (8-9 years old) were randomized into a PA intervention or wait-list control group, and completed a fitness and cognitive control assessment (i.e., modified flanker task) at pre- and posttest. Following exclusion criterion, 308 children were included in the analyses (PA intervention: n = 139; wait-list control: n = 169). Children in the intervention displayed greater improvements in fitness and response accuracy, which were accompanied by stability of ERN amplitude from pre- to posttest. In contrast, the control group revealed increased ERN amplitude at posttest compared to pretest, despite no change in fitness or task performance. These findings demonstrate the efficacy of daily PA for promoting children's fitness and underlying neural processes associated with effective conflict monitoring. Such findings have significant implications for promoting organized PA programs intended to foster overall physical and brain health in school age children.
本研究调查了为期 9 个月的身体活动（PA）干预对儿童心肺功能适应水平和冲突监测神经电指数（即错误相关负波，ERN）的影响。428 名青春期前儿童（8-9 岁）被随机分为 PA 干预组或等待名单对照组，并在预测试和后测试中完成了一项体能和认知控制评估（即改良的侧抑制任务）。排除标准后，308 名儿童被纳入分析（PA 干预组：n=139；等待名单对照组：n=169）。干预组的儿童在体能和反应准确性方面表现出更大的改善，这伴随着 ERN 幅度从预测试到后测试的稳定性。相比之下，对照组在与预测试相比，在测试后显示出 ERN 幅度的增加，尽管在体能或任务表现方面没有变化。这些发现表明，日常 PA 对促进儿童的体能和与有效冲突监测相关的潜在神经过程具有有效性。这些发现对促进有组织的 PA 计划具有重要意义，这些计划旨在促进学龄儿童的整体身心健康。
