J Phys Act Health. 2020 Nov 6;17(12):1197-1204. doi: 10.1123/jpah.2020-0148.
The purpose of this study was to examine the independent and joint associations between physical activity (PA) and sports participation on academic performance variables within a representative sample of children and adolescents.
Data were analyzed from the combined 2017-2018 National Survey of Children's Health. Household addresses were randomly selected within each US state. One household parent answered health and wellness questions pertaining to one randomly selected household child (N = 37,392; 48.1% female; 6- to 17-y old). Weighted logistic regression models were employed to examine the independent and joint associations between child PA frequency and sports participation with academic performance variables, adjusting for child- and family-level covariates.
Child PA frequency independently associated with 37% to 46% lower odds and child sports participation independently associated with 53% lower odds of reported difficulty concentrating, remembering, or making decisions (P < .001). For children who participated in sports, PA associated with 47% to 56% lower odds of ever repeating a grade level (P = .01).
Frequency of weekly PA and sports participation independently and negatively associated with difficulty concentrating, remembering, and making decisions, whereas the negative association between PA and ever repeating a grade level differed by child sports participation status.
本研究旨在考察在具有代表性的儿童和青少年样本中，身体活动（PA）和运动参与对学业表现变量的独立和联合关联。
本研究的数据来自于 2017-2018 年全国儿童健康调查的综合数据。在美国各州内随机选择家庭住址。一名家庭父母回答与一名随机选择的家庭儿童有关的健康和健康相关问题（N=37392；女性占 48.1%；6 至 17 岁）。采用加权逻辑回归模型，调整了儿童和家庭层面的协变量，以检验儿童 PA 频率和运动参与与学业表现变量的独立和联合关联。
儿童 PA 频率与报告注意力不集中、记忆力或决策能力困难的几率独立降低 37%至 46%（P<0.001），儿童运动参与与报告注意力不集中、记忆力或决策能力困难的几率独立降低 53%（P<0.001）。对于参加运动的儿童，PA 与重复年级的几率独立降低 47%至 56%（P=0.01）。
每周 PA 频率和运动参与的频率与注意力不集中、记忆力和决策能力困难呈独立且负相关，而 PA 与重复年级的负面关联因儿童运动参与状况而异。
