J Phys Act Health. 2021 Mar 3;18(4):391-399. doi: 10.1123/jpah.2020-0490. Print 2021 Apr 1.
Physical activity (PA), sedentary behavior, and sleep are interconnected, promoting optimal health. Few studies have examined these factors holistically. Therefore, the purpose of this study was to capture the 24-hour activity cycles of the US population by examining PA, sedentary behavior, and sleep based on the presence of a child within the home, as well as gender and weight.
Cross-sectional health-related variables from the National Health and Nutrition Examination Survey were used for analysis. The primary variables were the total and type of PA (recreation, work, and active transportation), sedentary behavior, and sleep. Chi-square and regression models were applied to compare the outcomes across participants' characteristics.
The adults with children within the home reported less recreational PA, more work activity, less sedentary activity, and less sleep, but no differences in total PA. The females with children in the home not only had the lowest levels of recreational activity and sleep, but also the lowest levels of sedentary behavior. The obese individuals with children in the home had less sedentary time than the adults without children in the home, regardless of weight status.
Unhealthy sleep and PA behaviors are prevalent in adults with children living at home, and women are particularly impacted.
体力活动（PA）、久坐行为和睡眠相互关联，促进身体健康。很少有研究全面研究这些因素。因此，本研究的目的是通过检查家中有孩子的人的 PA、久坐行为和睡眠，以及性别和体重，来捕捉美国人口的 24 小时活动周期。
使用国家健康和营养检查调查的横断面健康相关变量进行分析。主要变量是 PA 的总量和类型（娱乐、工作和主动交通）、久坐行为和睡眠。应用卡方检验和回归模型比较参与者特征的结果。
家中有孩子的成年人报告的娱乐性 PA 较少，工作活动较多，久坐活动较少，睡眠较少，但 PA 总量没有差异。家中有孩子的女性不仅娱乐活动和睡眠水平最低，而且久坐行为水平最低。家中有孩子的肥胖成年人比家中没有孩子的成年人久坐时间更少，无论体重状况如何。
有孩子在家的成年人中普遍存在不健康的睡眠和 PA 行为，女性尤其受到影响。
