The relative influence of demographic, individual, social, and environmental factors on physical activity among boys and girls.
The relative influence of demographic, individual, social, and environmental factors on physical activity among boys and girls.
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DOI：
10.1186/1479-5868-7-79
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发表时间：
2010-11-03
期刊：
影响因子：
--
通讯作者：
Story M
中科院分区：
文献类型：
--
作者：
Patnode CD;Lytle LA;Erickson DJ;Sirard JR;Barr-Anderson D;Story M
本研究旨在评估儿童和青少年样本中选定的人口、个人、社会和环境因素与中度至剧烈体力活动 (MVPA) 的关联。使用 ActiGraph 加速度计对 10-17 岁青少年 (n = 294) 的 MVPA 进行了评估。青少年完成了与体育活动 (PA)、父母和同龄人感知的社会支持以及感知的邻里特征相关的人口统计和个人变量的测量。家长填写了国际体育活动调查问卷的长表格。身体活动和媒体清单用于测量家庭环境，地理信息系统软件用于测量物理邻里环境。按性别分层进行双变量相关和层次多元回归。男孩参加 MVPA 的次数明显多于女孩。在分层分析中，同伴支持、家庭公共广播设备和温度与男孩的 MVPA 显着相关，而到就读学校的距离与女孩的 MVPA 显着相关。最终模型分别解释了男孩和女孩 MVPA 方差的 25% 和 15%。男孩和女孩之间与 MVPA 相关的个人、社会和环境因素存在重要差异。男孩的活动水平似乎受到与非结构化和社会类型活动密切相关的因素的影响，而女孩的活动则与内部和外部障碍以及与学校的距离有关。这些重要的个人、社会和环境因素对儿童和青少年 MVPA 变化的预期贡献仍有待确定。
This study aimed to evaluate the associations of selected demographic, individual, social, and environmental factors with moderate-to-vigorous physical activity (MVPA) in a sample of children and adolescents. MVPA was assessed among youth (n = 294) 10-17-years-old using the ActiGraph accelerometer. Youth completed measures of demographic and individual variables related to physical activity (PA), perceived social support by parents and peers, and perceived neighborhood characteristics. Parents completed the long-form of the International Physical Activity Questionnaire. The Physical Activity and Media Inventory was used to measure the home environment and Geographical Information Systems software was used to measure the physical neighborhood environment. Bivariate correlations and hierarchical multiple regression were conducted stratified by gender. Boys participated in significantly more MVPA than girls. In hierarchical analyses, peer support, home PA equipment, and temperature were significantly associated with MVPA among boys whereas distance to the school they attended was associated with MVPA among girls. The final models accounted for 25% and 15% of the variance in MVPA among boys and girls, respectively. Important differences exist among the individual, social, and environmental factors related to MVPA between boys and girls. Boys' levels of activity appear to be influenced by factors closely linked to unstructured and social types of activities whereas girls' activities relate to internal and external barriers as well as their proximity to their schools. The prospective contribution of these important individual, social, and environmental factors to changes in MVPA among children and adolescents remains to be determined.
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