Families Improving Together (FIT) For Weight Loss

家庭共同改善体重 (FIT)

• 批准号: 8511764
• 负责人: Dawn K Wilson
• 金额: $ 57.44万
• 依托单位: UNIVERSITY OF SOUTH CAROLINA AT COLUMBIA
• 依托单位国家: 美国
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-07-16 至 2017-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/8511764
• 关键词: Address; Adolescent; African American; Body Weight decreased; Caucasians; Caucasoid Race; Communication; Control Groups; Cultural Backgrounds; Data; Diet; Dietary intake; Dose; Drops; Educational Curriculum; Family; Fatigue; Goals; Health; Health behavior; Health education; Intervention; Intervention Studies; Life Style; Low income; Maintenance; Mediator of activation protein; Minority; Monitor; Obesity; Outcome; Overweight; Parenting behavior; Parents; Participant; Phase; Phase I Clinical Trials; Phase II Clinical Trials; Physical activity; Pilot Projects; Psychosocial Factor; Public Health; Randomized; Recruitment Activity; Reporting; Research; Social support; Systems Theory; Testing; United States; Weight; Youth; base; cost effective; design; disorder later incidence prevention; effective intervention; efficacy testing; efficacy trial; ethnic minority population; follow-up; group intervention; improved; intervention effect; intervention program; novel; post intervention; programs; psychosocial; randomized trial; skills; treatment effect; trial comparing; weight loss intervention

DESCRIPTION (provided by applicant): The increasing rate of obesity has become a major public health concern with national reports indicating 40% of African American adolescents are now overweight or obese. Little is known about effective weight loss interventions in ethnic minority adolescents. In part, this is because research has shown that ethnic minorities attend fewer intervention sessions, have higher attrition rates and lose less weight compared to Caucasians. Two fundamental problems related to this lack of progress are 1) the lack of appropriate content of weight loss interventions for African American adolescents that integrate cultural issues, parenting skills, and motivational strategies for long-term change and, 2) the poor dose of weight loss interventions because of participant fatigue and drop out. Previous weight loss studies among adolescents have been of relatively long duration lasting 12-25 weeks, however, our team has developed a weight loss program that is a relatively brief (8-week brief) face-to-face intervention that integrates motivational (autonomy-support) and positive parenting skills (monitoring, social support, positive communication skills) for reducing z-BMI in overweight African American adolescents. Our team has also recently conducted a pilot study testing the feasibility of an 8-week on-line intervention that is culturally tailored fr African American families. Thus, the goal of this project is to conduct a randomized controlled efficacy trial to address the problems with past studies by 1) making the face-to-face group intervention shorter, 2) using an on-line component to compliment the group- based intervention for increasing dose, and by 3) tailoring a motivational and parenting skills program directly to parents and adolescents skill levels and cultural background. 520 overweight African American adolescents and their parents will be recruited to participate. Phase I of the trial will test the efficacy of an 8-week face-to-face group randomized trial comparing motivational plus family-based weight loss (M+FWL) to a basic health (BH) education program on reducing z-BMI and improving diet and physical activity (PA) in overweight African American adolescents. In phase II of the trial participants will be re-randomized to either an 8-week on-line intervention or a control on-line program resulting in a 2 (M+FWL vs. BH group) x 2 (intervention vs. control on-line program) factorial design. This design will allow us to test the effects of the M+FWL curriculum and the added effects of the on-line intervention component on reducing z-BMI in African American adolescents and their parents. A 6-month follow-up will examine whether adolescents in the 8-week M+FWL group plus 8-week on-line intervention program will show the greatest maintenance in reducing z- BMI. Psychosocial mediators of treatment effects will be examined as well as treatment effects related to parent changes in z-BMI and health behaviors (diet and PA).

描述（由申请人提供）：肥胖率的增加已成为一个主要的公共卫生问题，国家报告表明40%的非洲裔美国青少年现在超重或肥胖。对少数民族青少年有效的减肥干预知之甚少。在某种程度上，这是因为研究表明，与白人相比，少数民族参加的干预会议较少，自然减员率较高，体重减轻较少。与这种缺乏进展有关的两个基本问题是：1）缺乏针对非裔美国青少年的适当内容的减肥干预措施，这些干预措施将文化问题，育儿技巧和长期改变的激励策略结合起来，2）由于参与者疲劳和辍学，减肥干预措施的剂量很差。以前在青少年中进行的减肥研究持续时间相对较长，持续12-25周，然而，我们的团队已经开发了一个减肥计划，这是一个相对简短的（8周简短）面对面的干预，整合了动机（支持）和积极的育儿技巧（监测，社会支持，积极的沟通技巧），以降低超重的非洲裔美国青少年的z-BMI。我们的团队最近还进行了一项试点研究，测试了为期8周的在线干预的可行性，该干预是针对非裔美国人家庭的文化。因此，本项目的目标是进行一项随机对照有效性试验，通过以下方式解决过去研究的问题：1）缩短面对面的小组干预时间，2）使用在线组件补充基于小组的干预以增加剂量，以及3）直接根据父母和青少年的技能水平和文化背景定制激励和育儿技能计划。将招募520名超重的非洲裔美国青少年及其父母参加。该试验的第一阶段将测试一项为期8周的面对面分组随机试验的有效性，该试验将动机加基于家庭的减肥（M+FWL）与基础健康（BH）教育计划进行比较，以降低z-BMI并改善超重非洲裔美国青少年的饮食和身体活动（PA）。在II期试验中，受试者将被重新随机分配至8周在线干预或在线对照项目，形成2（M+FWL组vs. BH组）x 2（干预组vs.在线对照项目）析因设计。这种设计将使我们能够测试M+FWL课程的效果，以及在线干预组件对降低非裔美国青少年及其父母的z-BMI的附加效果。6个月的随访将检查8周M+FWL组加8周在线干预计划中的青少年是否在降低z- BMI方面表现出最大的维持。将检查治疗效果的心理社会介质以及与父母z-BMI和健康行为（饮食和PA）变化相关的治疗效果。