Cherrington Andrea L, Willig Amanda L, Agne April A, Fowler M Cecilia, Dutton Gareth R, Scarinci Isabel C
Division of Preventive Medicine, School of Medicine, University of Alabama at Birmingham, MT 612, 1720 2nd Avenue South, Birmingham, Alabama 35294 USA.
Division of Infectious Diseases, School of Medicine, University of Alabama at Birmingham, BBRD 207, 1720 2nd Avenue South, Birmingham, Alabama 35294 USA.
BMC Obes. 2015 Mar 19;2:17. doi: 10.1186/s40608-015-0047-3. eCollection 2015.
Obesity rates are disproportionately high among Latinas living in the United States. Few community-based weight management studies have focused on Latina immigrants living in emerging Latino communities. The purpose of this study was to develop and pilot test a theory-based, promotora-delivered, peer support weight loss intervention for Latina immigrants to be administered in a community setting. We employed participatory methods to develop an 8-week program grounded in self-determination theory. Overweight Latina immigrants were recruited to participate in a quasi-experimental pilot study. Data collected pre and post-intervention included height, weight, fasting lipids, glucose, dietary practices, physical activity and depressive symptoms.
Twenty-two women completed the intervention. Mean age was 36, mean time in the U.S. was 12 years; the majority was from Mexico. Mean BMI was 33; 68% had a family history of diabetes. The intervention resulted in statistically significant weight loss (mean 2.1 kg, SD 2.6, p < 0.001); mean change in weight remained significant when compared with that of a historical control group (-2.1 kg vs 1.10 kg, p < 0.01) but was attenuated at 6 months. Levels of moderate physical activity increased significantly (p < 0.05) and dietary practices improved (p < 0.01) and remained significant at 6 months. Notably, depressive symptoms also improved (p = <0.001).
This theory-based, promotora-delivered intervention resulted in significant weight loss among a sample of Latina immigrants at 8 weeks. Future studies are needed to test the impact of an extended peer support intervention on long-term weight management.
National Clinical Trials: NCT02344212. Registered 21 January 2015.
在美国生活的拉丁裔女性中，肥胖率高得不成比例。很少有基于社区的体重管理研究关注生活在新兴拉丁裔社区的拉丁裔移民。本研究的目的是开发并进行基于理论、由健康促进员提供、同伴支持的体重减轻干预措施，供拉丁裔移民在社区环境中使用。我们采用参与式方法，以自我决定理论为基础制定了一个为期8周的项目。招募超重的拉丁裔移民参与一项准实验性试点研究。干预前后收集的数据包括身高、体重、空腹血脂、血糖、饮食习惯、身体活动和抑郁症状。
22名女性完成了干预。平均年龄为36岁，在美国的平均时间为12年；大多数来自墨西哥。平均体重指数为33；68%有糖尿病家族史。干预导致体重显著减轻（平均2.1千克，标准差2.6，p<0.001）；与历史对照组相比，体重平均变化仍具有显著性（-2.1千克对1.10千克，p<0.01），但在6个月时有所减弱。中等强度身体活动水平显著增加（p<0.05），饮食习惯改善（p<0.01），并在6个月时仍保持显著。值得注意的是，抑郁症状也有所改善（p<0.001）。
这种基于理论、由健康促进员提供的干预措施在8周时使一组拉丁裔移民样本的体重显著减轻。未来需要开展研究，以测试延长的同伴支持干预对长期体重管理的影响。
国家临床试验：NCT02344212。2015年1月21日注册。
