Sedentary Time, Physical Activity, and Adiposity: Cross-sectional and Longitudinal Associations in CARDIA.
Sedentary Time, Physical Activity, and Adiposity: Cross-sectional and Longitudinal Associations in CARDIA.
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DOI：
10.1016/j.amepre.2017.07.009
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发表时间：
2017-12
影响因子：
5.5
通讯作者：
Lewis CE
中科院分区：
文献类型：
--
作者：
Barone Gibbs B;Pettee Gabriel K;Carnethon MR;Gary-Webb T;Jakicic JM;Rana JS;Reis JP;Siddique J;Sternfeld B;Lewis CE
较高的久坐时间（ST）和较低的中高强度体力活动（MVPA）都与较高的肥胖有关，但大多数研究都是横断面的，并通过自我报告来测量ST和MVPA。本研究评估了客观ST和MVPA与当前和5年BMI和腰围变化之间的关系。青年人冠状动脉和风险发展的纵向队列研究招募了来自美国四个城市的黑人或白人年轻人。该分析（2016年进行）使用2005年至2006年的数据作为基线，2010年至2011年作为5年随访。加速度计测量基线ST（每次≥10分钟的总ST和延长ST）和MVPA（每次≥10分钟）。在基线时评估BMI和腰围，并在5年后重复。回归模型包括久坐时间和MVPA，同时调整了人口统计学和生活方式因素。参与者（n= 1826） 57%为女性，40%为黑人，年龄38-50岁，BMI为28.7 (SD=6.3) kg/m2。基线时，总ST和延长ST与BMI和腰围直接相关，而MVPA与BMI和腰围呈负相关（均p<0.05）。纵向上，只有延长ST（每小时/天）与BMI （0.077 kg/m2, p=0.033）和腰围（0.198 cm, p=0.028）的增加有关。ST和肥胖之间的关联在不太活跃的参与者中更为明显。每st小时/天，评估中BMI增加≥5%的风险增加8%-10% （p<0.05）。久坐时间与肥胖增加相关。减少久坐时间可能是一种控制体重的新策略。
Higher sedentary time (ST) and lower moderate to vigorous intensity physical activity (MVPA) have each been associated with greater adiposity, but most studies are cross-sectional and measure ST and MVPA by self-report. This study evaluated associations between objective ST and MVPA with current and 5-year changes in BMI and waist circumference. The Coronary Artery and Risk Development in Young Adults longitudinal cohort study recruited black or white young adults from four U.S. cities. This analysis (conducted in 2016) used data from 2005 to 2006 as baseline and 2010 to 2011 as 5-year follow-up. Accelerometers measured baseline ST (total and prolonged in bouts of ≥10 minutes) and MVPA (bouts of ≥10 minutes). BMI and waist circumference were assessed at baseline and repeated 5 years later. Regression models included sedentary time and MVPA simultaneously with adjustment for demographics and lifestyle factors. Participants (n=1,826) were 57% female, 40% black, aged 38–50 years, and had BMI of 28.7 (SD=6.3) kg/m2. At baseline, total and prolonged ST were directly associated with BMI and waist circumference, whereas MVPA was inversely related (all p<0.05). Longitudinally, only prolonged ST (per hour/day) was associated with greater increases in BMI (0.077 kg/m2, p=0.033) and waist circumference (0.198 cm, p=0.028). Associations between ST and adiposity were more apparent in less active participants. Risk of ≥5% increase in BMI across assessments increased by 8%–10% (p<0.05) per hour/day of ST. Time spent sedentary was associated with increases in adiposity over time. Reducing sedentary time may be a novel strategy for weight control.
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DOI：
10.1136/bmj.g2646
发表时间：
2014-05-14
期刊：
BMJ (Clinical research ed.)
影响因子：
--
作者：
Dombrowski SU;Knittle K;Avenell A;Araújo-Soares V;Sniehotta FF
通讯作者：
Sniehotta FF
影响因子：
120.7
作者：
Lee, I-Min;Djousse, Luc;Sesso, Howard D.;Wang, Lu;Buring, Julie E.
通讯作者：
Buring, Julie E.
DOI：
10.1001/jama.2014.732
发表时间：
2014-02-26
期刊：
JAMA
影响因子：
--
作者：
Ogden CL;Carroll MD;Kit BK;Flegal KM
通讯作者：
Flegal KM
影响因子：
39.3
作者：
Healy, Genevieve N.;Matthews, Charles E.;Owen, Neville
通讯作者：
Owen, Neville
影响因子：
4.3
作者：
Drenowatz, Clemens;Jakicic, John M.;Hand, Gregory A.
通讯作者：
Hand, Gregory A.