Reducing Television Viewing to Prevent Obesity in Hispanic Preschool Children

简介（由申请人提供）：门多萨博士是贝勒医学院儿科助理教授和普通儿科医生。他的长期目标是成为一名独立的、以患者为导向的研究者，专注于通过减少儿童肥胖来预防癌症，重点关注少数民族和低收入儿童。申请人将通过以患者为中心的研究，由公认的专家，如博士的正式指导来实现这一目标。Tom Baranowski和Theresa Nicklas，以及癌症和肥胖预防、健康促进、定性方法和高级研究方法的高级研究生课程。申请人的研究目标是在西班牙学龄前儿童中进行一项文化适应电视（TV）减少课程的随机对照试验，以减少看电视和防止体重增加。这个研究项目解决了西班牙裔儿童较高的肥胖率和看电视，这是肥胖的一个重要的可改变的风险因素。他们的假设是，减少西班牙裔学龄前儿童看电视的时间会减少体重的增加。申请人将测试“Fit 5 Kids”减少看电视课程的有效性，该课程已被证明可以减少纽约州北部农村地区以白人为主的儿童看电视的时间。通过单独的试点资金，门多萨博士将完成减少电视课程的文化适应，包括课堂可行性试验和对家长和教师的半结构化访谈。第一个具体目标是测试加速度计的收敛有效性，加速度计为西班牙裔儿童提供了一种低负担和客观的身体活动测量方法，并提供了标准的父母报告电视日记。第二个具体目的是确定两份社区环境问卷在西班牙裔儿童中的收敛效度。第三个具体目的是基于目标导向行为模型，开发一份家长问卷，评估家长限制孩子看电视时间的行为。第四个具体目标是成功地从12个Head Start中心招募144,3 -5岁的西班牙裔儿童，对改编的Fit 5 Kids课程进行小组随机对照研究，以评估其对减少西班牙裔学龄前儿童看电视和体重增加的影响。Mendoza博士的研究和职业发展活动将推动他成为领先的独立癌症预防研究人员的目标，专注于开发和评估预防儿童肥胖和降低少数民族和低收入儿童癌症风险的项目，以降低终身癌症风险。

DESCRIPTION (provided by applicant): Dr. Mendoza is Assistant Professor of Pediatrics at Baylor College of Medicine and a general pediatrician. His long-term goal is to become an independent, patient-oriented investigator focusing on cancer prevention by reducing childhood obesity, with an emphasis on minority and low-income children. The applicant will accomplish this goal through patient-oriented research, formal mentoring by recognized experts, such as Drs. Tom Baranowski and Theresa Nicklas, and advanced, graduate-level coursework in cancer and obesity prevention, health promotion, qualitative methods, and advanced research methods. The applicant's research goal will be to conduct a group randomized controlled trial of a culturally adapted television (TV) reduction curriculum among Hispanic preschool children in order to reduce TV viewing and prevent excess weight gain. This research project addresses Hispanic children's higher rates of obesity and TV viewing, an important modifiable risk factor for obesity. The hypothesis is that decreasing TV viewing in Hispanic preschoolers will decrease excess weight gain. The applicant will test the effectiveness of the TV reduction curriculum, Fit 5 Kids, which has already been shown to decrease TV viewing in a population of predominantly white children from rural, upstate New York. Through separate pilot funding, Dr. Mendoza will have completed the cultural adaptation of the TV reduction curriculum, including a classroom feasibility trial and semi-structured interviews of parents and teachers. The first specific aim is to test the convergent validity of accelerometers, which provide a low burden and objective measure of physical inactivity, with standard parent-reported TV diaries among Hispanic children. The second specific aim is to determine the convergent validity of two neighborhood environment questionnaires among Hispanic children. The third specific aim is to develop a parent questionnaire, based on the Model of Goal Directed Behavior, to assess parents' behaviors to limit their children's TV viewing time. The fourth specific aim is to successfully recruit 144, 3-5 year old Hispanic children from 12 Head Start centers for a group randomized controlled study of the adapted Fit 5 Kids curriculum to evaluate its impact on reducing TV viewing and excess weight gain in Hispanic preschool children. Dr. Mendoza's research and career development activities will advance his goal of becoming a leading independent cancer prevention researcher focused on developing and evaluating programs to prevent childhood obesity and reduce cancer risk in ethnic minority and low-income children, with the aim of reducing lifetime cancer risk.