Impacting diet and sedentary behaviors in adolescent through handheld computers

描述（由申请人提供）：Nicole Nessee博士是堪萨斯大学医学中心预防医学和公共卫生系的咨询心理学家和助理教授。候选人的长期目标是作为一个独立资助的临床研究者，专注于通过行为体重控制干预措施降低青少年健康风险。为了实现这一目标，候选人组建了一个特殊的辅导团队，并提出了一个为期4年的职业发展计划，重点是课程，研讨会，独立学习，专家咨询和会议出席，以解决她的一般和具体内容的研究知识的差距。要解决的领域包括随机试验的设计和实施（Ellerbeck，Primary Mentor），青少年营养和营养评估（Carlson，Co-Mentor），以及基于技术的（Rapoff，Co-Mentor）和青少年健康风险降低（Goggin，Co-Mentor）行为干预措施的设计和实施。为了进一步加强她的职业发展培训，候选人提出了一项试点研究，50名青少年（每组25人）随机接受手持计算机行为干预（HHC），解决水果和蔬菜（FV），含糖饮料和电视/屏幕时间或手持计算机评估仅比较条件（C）。主要目的是测试的可行性和可接受性的3个月的干预提供给青少年通过手持电脑。次要目标是：1）探索主要结局、体重指数（BMI）的3个月和6个月变化，并获得全规模R 01试验的效应量估计值，2）探索次要结局、FV、含糖饮料、电视/屏幕时间和体力活动的3个月和6个月变化，3）评估潜在介质对BMI、FV、电视/屏幕时间、体力活动和含糖饮料的作用。相关性（参见说明）：与公共卫生相关的是，这项研究提出了一种预防青少年肥胖的新方法，可以提高影响范围并减少关键障碍（例如，污名）对青少年参与肥胖预防试验的影响。如果成功，该干预措施有可能改变超重的轨迹，降低肥胖相关的发病率和死亡率。最后，一旦开发出来，干预措施就可以在几乎没有额外成本的情况下持续下去，并扩展到其他与肥胖相关的生活方式因素（例如，体力活动、膳食脂肪）。 (End摘要）

DESCRIPTION (provided by applicant): Dr. Nicole Nollen is a counseling psychologist and Assistant Professor in the Department of Preventive Medicine and Public Health at the University of Kansas Medical Center. The candidate's long-term goal is to function as an independently funded clinical investigator focusing on adolescent health risk reduction through behavioral weight control interventions. To accomplish this goal, the candidate has assembled an exceptional mentoring team and proposed a 4 year career development plan focused on coursework, seminars, independent study, expert consultation, and conference attendance to address gaps in her general and content specific research knowledge. Areas to be addressed include the design and conduct of randomized trials (Ellerbeck, Primary Mentor), adolescent nutrition and nutrition assessment (Carlson, Co- Mentor), and the design and implementation of technology-based (Rapoff, Co-Mentor) and adolescent health risk reduction (Goggin, Co-Mentor) behavioral interventions. To further enhance her career development training, the candidate has proposed a pilot study of 50 adolescents (25 per arm) randomized to a handheld computer behavioral intervention (HHC) addressing fruits and vegetables (FV), sweetened beverages, and TV/screen time or a handheld computer assessment only comparison condition (C). The primary aim is to test the feasibility and acceptability of a 3 month intervention delivered to adolescents via handheld computer. Secondary aims are to: 1) explore 3 and 6 month changes in the primary outcome, body mass index (BMI), and obtain effect size estimates for a full-scale R01 trial, 2) explore 3 and 6 month changes in secondary outcomes, FVs, sweetened beverages, TV/screen time, and physical activity, and 3) to evaluate the role of potential mediators on BMI, FV, TV/screen time, physical activity, and sweetened beverages. RELEVANCE (See instructions): Of relevance to public health, the study presents a novel approach to adolescent obesity prevention that may enhance reach and reduce key obstacles (e.g., stigma) to adolescents' participation in obesity prevention trials. If successful, the intervention has the potential to alter the trajectory of overweight and reduce obesity- related morbidity and mortality. Finally, once developed, the intervention could be sustained at little additional cost and extended to other obesity-related lifestyle factors (e.g., physical activity, dietary fat). (End of Abstract)