Health Sciences Department, College of Health and Human Services, Northern Arizona University.
Department of Preventive Medicine, Keck School of Medicine, University of Southern California.
J Pediatr Psychol. 2019 Apr 1;44(3):300-310. doi: 10.1093/jpepsy/jsy100.
Longitudinal within-subject (WS) associations of mothers' momentary assessed physical activity (PA) parenting practices were examined with children's objectively measured PA during the same 2-hr time frame.
Mother-child dyads (n = 189) completed five ecological momentary assessment (EMA) measurement bursts over 3 years. During each 7-day burst, mothers EMA-reported their past 2 hr PA parenting practices (i.e., encouraging their child to be physically active, taking their child someplace to be physically active), and children (Mage=9.6 years, SD = 0.9) wore an accelerometer to measure moderate-to-vigorous PA (MVPA). Two-part multilevel models were used, with zero portions representing not meeting MVPA and positive portions representing any MVPA, controlling for demographic covariates. Cross-level interaction terms of child sex and age with parenting were created to test moderation effects.
When mothers reported taking their child to be physically active, children were more likely to get some MVPA (b = -0.56, p < .001). When mothers reported taking their child to be physically active more, children had higher levels of MVPA (b = 0.24, p < .001). When mothers reported encouraging their child to be physically active, children were less likely to get any MVPA (b = 0.27, p < .05). However, when mothers reported encouraging their child to be physically active more, children had higher levels of MVPA (b = 0.29, p < .001). These effects were not moderated by child sex or age.
WS variations of mothers' support for PA across the day were associated with changes in children's MVPA. Future research should consider promoting mothers' provision of support for increasing children's PA.
本研究旨在考察同一 2 小时时间框架内，母亲即时评估的身体活动（PA）养育实践与儿童客观测量的 PA 之间的纵向个体内（WS）关联。
189 对母婴对子完成了 3 年的 5 次生态瞬间评估（EMA）测量爆发。在每次为期 7 天的爆发中，母亲通过 EMA 报告过去 2 小时的 PA 养育实践（即鼓励孩子积极参与身体活动，带孩子去某个地方进行身体活动），而孩子（平均年龄为 9.6 岁，标准差=0.9）佩戴加速度计以测量中等到剧烈的身体活动（MVPA）。使用两部分多层次模型，零部分表示不符合 MVPA，正部分表示任何 MVPA，控制人口统计学协变量。创建了儿童性别和年龄与养育的跨水平交互项，以检验调节作用。
当母亲报告带孩子进行身体活动时，孩子更有可能获得一些 MVPA（b = -0.56，p <.001）。当母亲报告更多地带孩子进行身体活动时，孩子的 MVPA 水平更高（b = 0.24，p <.001）。当母亲报告鼓励孩子进行身体活动时，孩子获得任何 MVPA 的可能性较低（b = 0.27，p <.05）。然而，当母亲报告更多地鼓励孩子进行身体活动时，孩子的 MVPA 水平更高（b = 0.29，p <.001）。这些影响不受儿童性别或年龄的调节。
母亲在一天中对 PA 的支持的 WS 变化与儿童 MVPA 的变化有关。未来的研究应考虑促进母亲提供支持以增加孩子的 PA。
