Texas Sprouts: A School-based Gardening Obesity Intervention for Low-income Minority Children
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 3,302
- 试验地点
- 16
- 主要终点
- To test the effect of the Sprouts intervention on the changes in dietary intake (fruit and vegetables servings) in the children.
研究概览
简要总结
The investigators recently completed an NIH R21 grant, which was a randomized controlled trial (RCT) to test the effects of a gardening, nutrition, and cooking program in 375 low-income Hispanic students living in Los Angeles. Preliminary results from this study show that intervention compared to the control students have reductions in BMI parameters and waist circumference, increases in daily intake of dietary fiber and vegetables, and improved lipid profiles. The investigators want to expand and replicate this study by: a) using a cluster randomized school design; b) implementing the program during school hours; c) increasing sample size; d) lengthening the intervention period to one school year; e) collecting comprehensive metabolic measurements on the child; f) enhancing family workshops; g) collecting more parental data; and h) developing and evaluating sustainability strategies. Thus, the overall goal of this project is to test the effects of a large school-based gardening, nutrition, and cooking RCT (called "Sprouts") on dietary intake, dietary-related behaviors, obesity, and related metabolic disorders in low-income Hispanic youth and their families in Central Texas. Sixteen elementary schools will be randomized to either: 1) Sprouts intervention or 2) Control (delayed intervention). At each intervention school, the investigators will build edible gardens; form and train Garden Leadership Coalitions (GLCs); teach 20 Sprouts in-school lessons to the students; and teach nine family-based Sprouts lessons throughout school year. The following measures will be obtained for students at baseline and post-intervention: height, weight, BMI, waist circumference, body composition (via bioimpedance), blood pressure, glucose, insulin, and lipids (via voluntary fasting blood draws), dietary intake, and related psychosocial behaviors (e.g., preference/motivation/self-efficacy to eat FV). The investigators will also measure anthropometrics, dietary intake, and related dietary psychosocial variables on the parents at baseline and post-intervention. After the intervention year, the investigators will provide a series of training workshops and resources to the GLCs and schoolteachers to sustain the Sprouts program in subsequent years. The investigators will measure the sustainability employed by each school by process logs/surveys, structured interviews, and school observations.
详细描述
Garden Leadership Coalition (GLC): The investigators will establish GLCs at each of the schools during the intervention phase, which will facilitate some of the school-level components of the intervention. These GLCs will be comprised of interested teachers, school staff, senior citizens, parents, and children, but these groups will be different and unique at each school site.
Edible Gardens: Raised beds will be used at all garden sites, as these are easy to build, make garden access easy for children of all developmental levels, ensure that soils are free of heavy metals/contaminants, and reduce weeds in the garden area. Each school site will get the materials and supplies needed for garden upkeep and for teaching the lessons,.
Curriculum: A total of 18 lessons (1 hour each) will be taught weekly over the course of the intervention year. The curriculum is culturally tailored to Hispanics, including culturally appropriate recipes, content, and activities. The curriculum is mapped on State of Texas Assessments of Academic Readiness (STAAR) standards for science, math, language arts, health, and social studies. The 9 parent lessons (each 1 hour long) will parallel the nutrition and gardening topics/activities taught to the children. The parent curriculum is available in both English and Spanish and has been culturally adapted and evaluated. The curriculum has a strong emphasis on the cooking components and focuses on growing and cooking foods that are culturally appropriate.
School Lessons: The investigators will hire bilingual nutrition and garden educators who have experience teaching nutrition/ gardening programs to teach the Sprouts curriculum. Lessons will be taught by our educators separately to each 3rd-5th grade classroom throughout the school year as part of their normal school day. Although nutrition and garden educators will be provided to teach these lessons the first year, the schoolteachers will attend all of these lessons, providing the initial training for them to continue the program in subsequent years.
Family Lessons at Schools: The bilingual garden/nutrition educators will also teach monthly Sprouts lessons throughout the school year for the families of participants at each of the schools.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- None
入排标准
- 年龄范围
- 8 Years 至 11 Years（Child）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Weight status: Normal weight children (age- and sex-specific BMI<85th percentile based on CDC BMI growth charts68) and overweight and obese children (BMI≥85th percentile).
- •Gender and Age: Students in 3rd-5th grades (8 to 11 y) and their parents
- •Hispanic Origin: This study will include all ethnicities/races; however, the selected schools are >50% Hispanic, and therefore, we expect the majority of our students and parents to be Hispanic.
排除标准
- •Children or parents presently taking medication(s) or diagnosed with any disease that could influence dietary intake or body composition
- •Previously diagnosed with any major illness since birth (e.g. chronic birth asphyxia, cancer, etc.)
- •Any physical, cognitive, or psychological disability that would prevent participation in the study.
研究组 & 干预措施
Intervention
TX Sprouts
干预措施: Intervention (Behavioral)
Control
Delayed Intervention
干预措施: Intervention (Behavioral)
结局指标
主要结局
To test the effect of the Sprouts intervention on the changes in dietary intake (fruit and vegetables servings) in the children.
时间窗: One year
Evaluation measures will be collected one time at baseline and end of the school year in both arms (intervention and control schools). A child questionnaire will be administered and include questions about dietary intake of fruits and vegetables to assess their eating habits.
To test the effect of the Sprouts intervention on the changes in BMI in the children.
时间窗: One year
Evaluation measures will be collected one time at baseline and end of the school year in both arms (intervention and control schools). Measurements will occur during the first four weeks of school in the fall and the last four weeks of school in the spring. Weight will be measured using a SECA (model 869) digital scale to the nearest 0.1 kg, and height will be measured using a wall-mounted stadiometer to the nearest 0.1 cm. BMI (kg/m2) and BMI percentiles for CDC age- and gender-specific values will be determined using EpiInfo 2005.
次要结局
- To test the effect of the Sprouts intervention on the changes in dietary intake (fruit and vegetables servings) in the parents.(One year)
- To test the effect of the Sprouts intervention on changes in BMI in the parents.(4 years)
研究者
Jaimie N. Davis
Associate Professor
University of Texas at Austin