Web-based interventions for weight loss and weight maintenance among rural midlife and older women: protocol for a randomized controlled trial
Web-based interventions for weight loss and weight maintenance among rural midlife and older women: protocol for a randomized controlled trial
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DOI：
10.1186/1471-2458-11-521
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发表时间：
2011-06-30
影响因子：
4.5
通讯作者：
Walker, Susan Noble
中科院分区：
文献类型：
--
作者：
Hageman, Patricia A.;Pullen, Carol H.;Walker, Susan Noble
背景：在中年和老年农村妇女中，减肥是一项挑战，维持减肥是一个问题。寻找有效的干预措施，使用创新的交付方法，可以达到服务不足和脆弱人群的超重和肥胖的农村妇女是一个公共卫生挑战。方法/设计：这些女人为了健康而称重（万维网研究）随机对照试验旨在比较基于理论的行为改变干预措施的有效性，这些干预措施使用（1）仅网站，（2）有同行领导支持的网站，或（3）网站提供专业的电子邮件咨询，以促进45-69岁、BMI为28-45的农村妇女的初始体重减轻（基线至6个月）、指导性持续体重减轻和维持（7-18个月）以及自我指导的体重维持（19-30个月）。利用当地媒体进行的招募工作将针对306名居住在社区学院所在地驾车距离内的农村妇女，由研究护士在基线、3个月、6个月、12个月、18个月、24个月和30个月时进行评估，这些护士对小组分配不知情。主要结局包括从基线到每次后续评估的体重、体重减轻%以及进食和活动行为和生物标志物的变化。次要结果将是实现至少5%和10%的体重减轻而没有从基线恢复到6个月，18个月和30个月，并实现健康饮食和活动目标的女性百分比。数据分析将使用广义估计方程来分析平均变化组和组差异的参与者达到目标减肥level.Discussion的比例：妇女体重在健康研究比较创新的基于网络的替代品，为促进农村妇女减肥和体重维持提供生活方式的行为改变干预措施。如果有效，这些干预措施将为减少弱势、难以接触的农村妇女人口的超重和肥胖提供潜力。
Background: Weight loss is challenging and maintenance of weight loss is problematic among midlife and older rural women. Finding effective interventions using innovative delivery methods that can reach underserved and vulnerable populations of overweight and obese rural women is a public health challenge.Methods/Design: This Women Weigh-In for Wellness (The WWW study) randomized-controlled trial is designed to compare the effectiveness of theory-based behavior-change interventions using (1) website only, (2) website with peer-led support, or (3) website with professional email-counseling to facilitate initial weight loss (baseline to 6 months), guided continuing weight loss and maintenance (7-18 months) and self-directed weight maintenance (19-30 months) among rural women ages 45-69 with a BMI of 28-45. Recruitment efforts using local media will target 306 rural women who live within driving distance of a community college site where assessments will be conducted at baseline, 3, 6, 12, 18, 24 and 30 months by research nurses blinded to group assignments. Primary outcomes include changes in body weight, % weight loss, and eating and activity behavioral and biomarkers from baseline to each subsequent assessment. Secondary outcomes will be percentage of women achieving at least 5% and 10% weight loss without regain from baseline to 6, 18, and 30 months and achieving healthy eating and activity targets. Data analysis will use generalized estimating equations to analyze average change across groups and group differences in proportion of participants achieving target weight loss levels.Discussion: The Women Weigh-In for Wellness study compares innovative web-based alternatives for providing lifestyle behavior-change interventions for promoting weight loss and weight maintenance among rural women. If effective, such interventions would offer potential for reducing overweight and obesity among a vulnerable, hard-to-reach, population of rural women.