农村阿巴拉契亚地区肥胖和极度肥胖青少年“主动指导”对减肥、体重指数和体脂的效果。
Efficacy of "Mentoring to Be Active" on Weight Loss, Body Mass Index, and Body Fat among Obese and Extremely Obese Youth in Rural Appalachia.
机构信息
College of Nursing, The Ohio State University, Columbus, Ohio.
Department of Human Sciences, College of Education and Human Ecology, The Ohio State University, Columbus, Ohio.
出版信息
J Rural Health. 2020 Jan;36(1):77-87. doi: 10.1111/jrh.12410.
PURPOSE
This study compares the efficacy of a behavioral skills mentoring program (Mentored Planning to Be Active [MBA]) to a teacher-led program (Planning to Be Active [PBA]) for increasing physical activity in Appalachian teens on health outcomes (weight loss, body mass index (BMI), and body fat).
METHODS
Secondary analysis of a larger group-randomized controlled trial was conducted in 20 rural Appalachian schools. Descriptive Pearson correlations and multivariate analyses with between-subject effects were conducted. Effect sizes (ES) using Cohen's d and odds ratios (OR) with 95% confidence intervals were calculated.
FINDINGS
The obese MBA group lost 77.5% more weight by T3 compared to the PBA group; T2 was (F = 8.51, P = .000) and T3 was (F = 7.62, P = .000). ES was 0.34. OR = 1.45 (95% CI: 0.558-3.792) at T2 and OR = 3.32 (95% CI: 1.103-9.978) at T3. Extremely obese in the MBA group lost 80.0% more weight compared to the PBA group; T2 was (F = 5.23, P = .025) and at T3 (F = 6.33, P = .015) ES was 0.58. OR = 4.36 (95% CI: 0.981-19.34). Extremely obese females lost more weight compared to males (F = 4.75, P = .034). BMI and body fat had similar results; youth in the MBA group had the most improvement.
CONCLUSIONS
Rural Appalachian youth are disproportionately extremely obese. BMI does not capture adiposity or cardiovascular risk. BMI, BMI percentile, raw weight, fat mass, and percent body fat are more complete analyses of adiposity and cardiovascular risk.
目的
本研究比较了行为技能指导计划（导师指导计划）与教师主导计划（计划活跃）对阿巴拉契亚青少年健康结果（减肥、体重指数（BMI）和体脂肪）的影响。
方法
对 20 所农村阿巴拉契亚学校进行了更大规模的群组随机对照试验的二次分析。进行了描述性皮尔逊相关分析和具有受试者间效应的多元分析。使用 Cohen 的 d 和 95%置信区间的比值比（OR）计算效应大小（ES）。
发现
与 PBA 组相比，肥胖 MBA 组在 T3 时体重减轻了 77.5%；T2 时（F=8.51，P=0.000）和 T3 时（F=7.62，P=0.000）。ES 为 0.34。T2 时 OR=1.45（95%CI：0.558-3.792），T3 时 OR=3.32（95%CI：1.103-9.978）。MBA 组中极度肥胖的青少年与 PBA 组相比，体重减轻了 80.0%；T2 时（F=5.23，P=0.025）和 T3 时（F=6.33，P=0.015），ES 为 0.58。OR=4.36（95%CI：0.981-19.34）。极度肥胖的女性比男性减重更多（F=4.75，P=0.034）。BMI 和体脂肪有相似的结果；MBA 组的青少年改善最大。
结论
农村阿巴拉契亚地区的青少年肥胖比例过高。BMI 不能反映肥胖程度或心血管风险。BMI、BMI 百分位、原始体重、体脂肪量和体脂肪百分比是对肥胖程度和心血管风险的更全面分析。
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