Exploring longitudinal and momentary effects of family functioning on obesity risk behaviors in Hispanic adolescents and family units

项目总结/摘要 美国的西班牙裔青少年与非西班牙裔青少年相比， 西班牙裔白色青少年。解决青少年肥胖问题的推荐方法是通过 参与以家庭为基础的多方面行为干预措施（以改善家庭状况为目标）; 作为一种变革机制）。虽然存在以家庭为基础的干预措施， 青少年肥胖相关的结果，特别是西班牙裔青少年，是小的或微不足道的。 有限的影响可能是由于现有研究的差距：1）很少有联邦调查局纳入肥胖相关的 多层次的社会生态因素作为定制变量，以提高干预效果，2）FBIs通常 忽视了父亲和其他家庭成员（如多代同堂家庭中的祖父母）， 也可能在青少年肥胖风险行为中发挥作用，3）FBIs通常评估家庭功能 回顾性地，不考虑日常的家庭动态，这也可能影响肥胖风险 行为。因此，我提出以下目标来解决现有的差距：1）进行二次数据分析 使用来自青少年大脑认知发展研究和西班牙裔青少年的五波数据， 子样本（n=2411，基线时法师=9.5），以检查每个水平因素的直接和调节效应 肥胖风险行为/肥胖状况纵向轨迹的社会生态学模型，2）飞行员和 EMA方案，西班牙裔青少年（9-17岁）和家庭护理人员（n=20个家庭单位）， 评估可行性和可接受性，确定完成日常评估的障碍和促进因素 家庭单位，并对EMA方案进行必要的修改，以及3）实施最终的EMA 方案，使用测量突发设计，并评估瞬时 家庭功能行为的变化以及与日常体力活动、睡眠和营养的关联 行为（n=50个家庭单位，9至17岁的青少年）。此培训应用程序的目的是获得 在以下四个方面提供指导和培训：1）密集的纵向数据分析，2）招聘， 保留和实施，3）创新的评估设计，以及4）专业发展。下 一个跨学科研究人员团队的指导，无论是肥胖预防专家，纵向数据 分析，生态瞬时评估，和/或少数民族健康，费尔南德斯博士将成功地完成 德克萨斯大学休斯顿健康科学中心、公共卫生学院和 获得初步数据，为NIH-R 01提案的制定提供信息。

PROJECT SUMMARY/ABSTRACT Hispanic adolescents in the United States are disproportionately affected by obesity compared to their non- Hispanic White adolescent counterparts. A recommended means of addressing adolescent obesity is through participation in family-based multicomponent behavioral interventions (targeting improvements in family functioning as a mechanism of change). Although family-based interventions (FBIs) exist, effects on adolescent obesity-related outcomes, especially among Hispanic adolescents, are small or insignificant. Limited effects may be due to gaps in the existing research: 1) few FBIs have incorporated obesity-related socioecological factors at multiple levels as tailoring variables to improve intervention effects, 2) FBIs often overlook fathers and other household members (such as grandparents in multi-generational households) that may also play a role on adolescents’ obesity risk behaviors, and 3) FBIs often assess family functioning retrospectively without consideration of day-to-day family dynamics, which may also influence obesity risk behaviors. Thus, I propose the following aims to address existing gaps: 1) conduct secondary data analysis using five waves of data from the Adolescent Brain Cognitive Development study and the Hispanic adolescent subsample (n=2411, Mage=9.5 at baseline) to examine the direct and moderating effects of factors at each level of the socioecological model on the longitudinal trajectories of obesity risk behaviors/obesity status, 2) pilot an EMA protocol with Hispanic adolescents (9-to-17 years) and household caregivers (n=20 family units) across 7 days to assess feasibility and acceptability, identify barriers and facilitators to completion of daily assessments by family units, and make needed modifications to the EMA protocol, and 3) implement a finalized EMA protocol over a 6-month period, using measurement burst design, and assess the effects of momentary changes in family functioning behaviors and associations with daily physical activity, sleep, and nutrition behaviors (n=50 family units, adolescents 9-to-17 years). The purpose of this training application is to gain mentoring and training in the following four areas: 1) intensive longitudinal data analysis, 2) recruitment, retention, and implementation, 3) innovative assessment design, and 4) professional development. Under the mentorship of a team of interdisciplinary researchers, experts in either obesity prevention, longitudinal data analysis, ecological momentary assessment, and/or minority health, Dr. Fernandez will successfully complete the plan of research at the University of Texas Health Science Center at Houston, School of Public Health and attain preliminary data to inform the development of a NIH-R01 proposal.