Behavioral, Environmental, and Demographic Factors Associated with Objectively Measured Physical Activity in Infants.
Behavioral, Environmental, and Demographic Factors Associated with Objectively Measured Physical Activity in Infants.
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与客观测量的婴儿身体活动相关的行为、环境和人口因素。
DOI：
10.1089/chi.2021.0197
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Pate,RussellR
中科院分区：
文献类型：
--
作者：
Shull,EmilyR;Dowda,Marsha;McIver,KerryL;McLain,AlexanderC;Benjamin-Neelon,SaraE;Ulrich,Beverly;Pate,RussellR
背景：描述客观测量的身体活动（PA）的婴儿，并确定人口统计学，行为和环境因素与婴儿的PA。方法：参与者是6-7个月大的婴儿和他们的母亲（N= 143对）从美国东南部的两个县。婴儿测量包括通过踝关节和腰部部位的加速度计评估的PA，运动发育状态（即，静止和运动），以及人体测量特征（即，身高和体重）。母亲们提供了关于家庭环境、儿童保育环境和家庭人口因素的资料。在人口统计学亚组之间比较PA水平。相关系数描述了PA与连续变量（包括运动发育状态和人体测量特征）之间的关联。多元线性回归分析研究发现与PA独立相关的因素。结果：婴儿的PA计数在踝关节（77，700计数/小时）比腰部（32，500计数/小时）更大。在单变量分析中，一组不同的环境，行为和婴儿水平的人口统计学因素被发现与PA在踝关节部位。多变量分析表明，更先进的运动发育状况，（B= 666.3 ± 329.8，p < 0.05），在家庭托儿机构的出勤率（B= − 13，724.4 ± 5083.9，p < 0.05），暴露于腹部的时间更长（B= 213.5 ± 79.9，p < 0.05），和白色人种/民族组成（B= − 19，953.4 ± 5888.5，p < 0.01）与婴儿PA独立相关。在6-7个月大的婴儿中，客观测量的PA被发现与运动发育状态以及身体和社会环境因素有关，包括人口统计学调节因素和受父母和照顾者影响的因素。需要进行纵向研究，以确定这些关系是否会随着婴儿的发育而持续或变化。
Background:To describe objectively measured physical activity (PA) in infants, and to identify demographic, behavioral, and environmental factors associated with infants’ PA.Methods:Participants were 6–7-month-old infants and their mothers (N= 143 dyads) from two Southeastern US counties. Infant measures included PA assessed by accelerometers at ankle and waist sites, motor developmental status (i.e., stationary and locomotion), and anthropometric characteristics (i.e., height and weight). Mothers provided information on home environment, child care settings, and family demographic factors. PA levels were compared across demographic subgroups. Correlation coefficients described associations between PA and continuous variables, including motor developmental status and anthropometric characteristics. Multiple linear regression analyses examined factors found to be independently associated with PA.Results:Infants’ PA counts were greater at the ankle (77,700 counts/hr) vs. the waist site (32,500 counts/hr). In univariate analyses, a diverse set of environmental, behavioral, and infant-level demographic factors were found to be significantly associated with PA at the ankle site. Multivariate analyses indicated that more advanced motor development status (B= 666.3 ± 329.8,p< 0.05), attendance at home child care settings (B= −13,724.4 ± 5083.9,p< 0.05), greater exposure to tummy time (B= 213.5 ± 79.9,p< 0.05), and white racial/ethnic composition (B= −19,953.4 ± 5888.5,p< 0.01) were independently, associated with infants’ PA.Conclusions:In 6–7-month-old infants, objectively measured PA was found to be associated with motor developmental status and physical and social environmental factors, including both demographic moderators and factors that are influenced by parents and caregivers. Longitudinal studies are needed to determine if these relationships persist or change as infants develop.
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DOI：
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发表时间：
2014
期刊：
影响因子：
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作者：
J. Gubbels
通讯作者：
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影响因子：
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作者：
Zhenzhen Jia;Joni H. Zhang;Dulce Trindade;T. Sobko
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