Sex differences in the associations of physical activity and macronutrient intake with child body composition: A cross-sectional study of 3- to 7-year-olds in Samoa.
Sex differences in the associations of physical activity and macronutrient intake with child body composition: A cross-sectional study of 3- to 7-year-olds in Samoa.
复制标题
体力活动和常量营养素摄入量与儿童身体成分之间的性别差异：对萨摩亚 3 至 7 岁儿童的横断面研究。
DOI：
10.1111/ijpo.12603
复制
发表时间：
2020
影响因子：
3.8
通讯作者：
Hawley,NicolaL
中科院分区：
文献类型：
--
作者：
Thompson,AveryA;Duckham,RachelL;Desai,MayurM;Choy,CourtneyC;Sherar,LaurenB;Naseri,Take;Soti-Ulberg,Christina;Reupena,MuagatutiaS;Wetzel,AbigailI;Hawley,NicolaL
BackgroundOverweight/obesity is prevalent among children in the Pacific Islands, but its aetiology is poorly understood. Few studies have considered body composition in addition to body mass index–based measures.ObjectivesTo describe body composition among Samoan children and determine sex‐specific associations among dietary intake, physical activity, and body composition.MethodsBody composition (percent body fat [%BF], lean mass, and trunk‐to‐peripheral fat ratio) of n = 83 Samoan children (3‐7 y) was assessed using dual‐energy X‐ray absorptiometry. Children completed 7 days of objective physical activity monitoring. Mothers reported child nutritional intake using a 115‐item food frequency questionnaire. Stepwise generalized linear regression was used to determine independent associations of nutritional intake and physical activity with body composition.ResultsSamoan children had higher average %BF than reported among other ethnic groups but lower trunk‐to‐peripheral fat ratios. In sex‐stratified analyses, quartile of carbohydrate intake was negatively associated with %BF (β= −2.02 SE = 0.58;P< .001) in girls only. Among boys, physical activity (quartile of accelerometer counts per minute) was negatively associated with %BF (β= −1.66 SE = 0.55;P< .01).ConclusionsSex differences in the associations among nutritional intake, physical activity, and body composition may be important to consider as interventions are developed to address overweight/obesity among Samoan children.
