Sedentary behavior moderates the relationship between physical activity and cardiometabolic risk in young Latino children.
Sedentary behavior moderates the relationship between physical activity and cardiometabolic risk in young Latino children.
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久坐行为调节了拉丁裔儿童体力活动与心脏代谢风险之间的关系。
DOI：
10.1093/tbm/ibab046
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发表时间：
2021
影响因子：
3.6
通讯作者：
Delamater,AlanM
中科院分区：
文献类型：
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作者：
Malik,JamilA;Coto,Jennifer;Pulgaron,ElizabethR;Daigre,Amber;Sanchez,JanineE;Goldberg,RonaldB;Wilson,DawnK;Delamater,AlanM
本研究调查了客观测量的中等强度体力活动（MVPA）和久坐行为对拉丁美洲儿童心脏代谢危险因素的作用。我们假设，当久坐行为较低时，MVPA与较低的心脏代谢风险相关。我们研究了86主要是低收入，拉丁裔儿童使用横断面研究设计。研究样本包括51名女孩和35名男孩，平均年龄为5.6岁（SD= .53）。通过加速度计测量身体活动，获得人体测量结果，并使用空腹血液样本测量心脏代谢危险因素。久坐行为与腰围增加（rs= 0.24，p <0.05）和代谢风险相关。然而，MVPA与除血浆胰岛素外的所有心脏代谢危险因素（rs范围=-0.20至-0.45，p <0.05）有显著的有益关联。MVPA预测了代表人体测量风险（β=-0.57，p < .01）、心脏风险（β=-0.74，p < .01）和代谢风险（β=-0.88，p < .01）的潜在变量。久坐行为显著调节MVPA对人体测量（β-交互作用= 0.49，p <0.01）、心脏（β-交互作用= 0.45，p <0.01）和代谢风险（β-交互作用= 0.77，p <0.01）的影响，因此，在久坐行为较低的条件下，MVPA越多，健康结果越好。该模型分别解释了人体测量、心脏和代谢危险因素的13%、22%和45%的方差。增加MVPA与年轻拉丁裔儿童的心脏代谢风险降低有关，特别是当久坐行为较低时。
This study investigated the role of objectively measured moderate–vigorous physical activity (MVPA) and sedentary behavior on cardiometabolic risk factors of young Latino children. We hypothesized that MVPA would be associated with lower cardiometabolic risk when sedentary behavior is low. We studied 86 primarily low-income, Latino children using a cross-sectional study design. The study sample consisted of 51 girls and 35 boys, with mean age 5.6 (SD= .53) years. Physical activity was measured by accelerometry, anthropometric measures obtained, and fasting blood samples were used to measure cardiometabolic risk factors. Greater levels of sedentary behavior were associated with increased waist circumference (rs= .24,p< .05) and metabolic risks. MVPA, however, had significant beneficial associations with all cardiometabolic risk factors (rs-range = −.20 to −.45,p< .05) with the exception of plasma insulin. MVPA predicted latent variables representing anthropometric risk (β= −.57,p< .01), cardiac risk (β= −.74,p< .01), and metabolic risk (β= −.88,p< .01). Sedentary behavior significantly moderated the effect of MVPA on anthropometric (β-interaction = .49,p< .01), cardiac (β-interaction = .45,p< .01), and metabolic risk (β-interaction = .77,p< .01), such that more MVPA was associated with better health outcomes under conditions of lower sedentary behavior. The model explained 13%, 22%, and 45% variance in anthropometric, cardiac, and metabolic risk factors, respectively. Increased MVPA is associated with decreased cardiometabolic risk in young Latino children, particularly when sedentary behavior is low.