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美国卫生研究院文献>Childhood Obesity
>A Community-Based Intervention Increases Physical Activity and Reduces Obesity in School-Age Children in North Carolina
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A Community-Based Intervention Increases Physical Activity and Reduces Obesity in School-Age Children in North Carolina
>Background: Community-based interventions are promising approaches to obesity prevention, but few studies have prospectively evaluated them. The aim of this study was to evaluate a natural experiment—a community intervention designed to promote active living and decrease obesity within a small southern town.>Methods: In 2011, community leaders implemented the Mebane on the Move intervention—a community-wide effort to promote physical activity (PA) and decrease obesity among residents of Mebane, North Carolina. We measured child PA and BMI before and after the intervention, using a nearby town not implementing an intervention as the comparison. In total, we assessed 64 children from Mebane and 40 from the comparison community 6 months before, as well as 34 and 18 children 6 months after the intervention. We assessed PA with accelerometers worn for 7 days and calculated BMI z-scores using children's height and weight. We conducted multivariable linear regressions examining pre- to postintervention change in minutes of PA and BMI z-score, adjusting for confounders.>Results: At follow-up, children in Mebane modestly increased their moderate-to-vigorous PA (1.3 minutes per hour; 95% confidence interval (CI): 0.2, 2.3; p=0.03) and vigorous activity (0.8 minutes per hour; 95% CI: 0.1, 1.5; p=0.04) more than comparison children. In intervention children, BMI z-scores decreased 0.5 units (kg/m2; 95% CI: −0.9, −0.02; p=0.045), compared to children in the comparison community.>Conclusions: We observed positive effects on PA level and weight status of children in Mebane, despite high rates of attrition, suggesting that the community-based intervention may have been successful.
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机译:>背景: strong>基于社区的干预措施是预防肥胖的有前途的方法,但是很少有研究对它们进行前瞻性评估。这项研究的目的是评估一项自然实验-一种旨在改善南部小城镇内积极生活并减少肥胖症的社区干预措施。>方法: strong> 2011年,社区领导者实施了Mebane on the Move干预措施—在北卡罗来纳州梅巴内居民中开展的一项旨在促进体育锻炼(PA)和减少肥胖症的社区性努力。我们使用附近没有实施干预措施的城镇作为干预措施,对干预前后的儿童PA和BMI进行了测量。总共,我们在干预前6个月评估了64名来自Mebane的儿童和40名来自比较社区的儿童,以及干预后6个月的34和18名儿童。我们使用佩戴了7天的加速度计评估了PA,并使用儿童的身高和体重计算了BMI z得分。我们进行了多元线性回归分析,检查了干预前后PA和BMI z评分的分钟变化,并针对混杂因素进行了调整。 PA(每小时1.3分钟; 95%置信区间(CI):0.2、2.3; p = 0.03)和剧烈运动(每小时0.8分钟; 95%CI:0.1、1.5; p = 0.04)多于比较儿童。与比较社区的儿童相比,干预儿童的BMI z得分降低了0.5个单位(kg / m 2 sup>; 95%CI:-0.9,-0.02; p = 0.045)。结论: strong>尽管流失率很高,我们仍观察到了对梅班儿童PA水平和体重状况的积极影响,这表明基于社区的干预措施可能已经成功。
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