Dept of Physical Education, Slippery Rock University, Slippery Rock, PA, USA.
J Phys Act Health. 2010 Sep;7(5):577-83. doi: 10.1123/jpah.7.5.577.
Physical activity (PA) tends to decrease from adolescence to young adulthood, and factors that have been proposed to contribute to this decrease are life transitions. The focus of this study is to examine life transitions, such as marriage and parenthood, and the impact they may have on the physical activity levels of young adults.
This 2-year prospective analysis assessed physical activity (hrs/wk) and sociodemographics in young adults (n = 638, 48% male, 15% nonwhite, 24 ± 1.1 years old) via questionnaire. PA data were normalized through log transformations and examined using ANCOVAs, controlling for appropriate covariates.
ANCOVA results showed that becoming married did not significantly change PA compared with individuals who stayed single [F(1,338) = 0.38, P = .54, d = 0.06]. Conversely, PA was significantly lower [F(1,517) = 6.7, P = .01, d = 0.41] after having a child, compared with individuals who stayed childless.
These results suggest that marriage does not impact PA in young adults, but having a child significantly decreases PA in parents, and may offer an optimal period of intervention.
从青少年到青年期，身体活动（PA）往往会减少，而被认为导致这种减少的因素是生活转变。本研究的重点是研究生活转变，如婚姻和为人父母，以及它们可能对年轻人身体活动水平的影响。
这项为期 2 年的前瞻性分析通过问卷评估了年轻人（n=638，48%为男性，15%为非白人，24±1.1 岁）的身体活动（小时/周）和社会人口统计学数据。通过对数变换对 PA 数据进行标准化，并使用协方差分析（ANCOVA）进行检查，同时控制了适当的协变量。
ANCOVA 结果显示，与单身个体相比，结婚并没有显著改变 PA[F(1,338)=0.38, P=.54, d=0.06]。相反，与没有孩子的个体相比，有了孩子后 PA 显著降低[F(1,517)=6.7, P=.01, d=0.41]。
这些结果表明，婚姻不会影响年轻人的 PA，但为人父母会显著降低 PA，这可能提供了一个干预的最佳时期。
