Impact of a Gardening and Physical Activity Intervention in Title 1 Schools: The TGEG Study.

Background: The purpose of the Texas!Grow!Eat!Go! (TGEG) study was to assess individual and combined effects of school-based gardening and physical activity (PA) interventions on children's eating and PA behaviors and obesity status. Methods: Using a 2 × 2 design, 28 low-income schools in Texas were randomized to 1 of 4 conditions: (1) School Garden intervention (Learn!Grow!Eat!Go! [LGEG]), (2) PA intervention (Walk Across Texas [WAT!]), (3) both Garden and PA intervention (Combined), or (4) neither Garden nor PA intervention (Control). Participants included 1326 third grade students and parents (42% Hispanic; 78% free/reduced lunch). Student and parent data were collected at the beginning and end of the school year. Two different sets of analyses measuring pre-post changes in outcomes within and across conditions were estimated by factorial ANOVAs using mixed models adjusted for demographics. Results: Main effect analyses indicate that relative to children at schools that did not receive LGEG, children at schools that received LGEG, either individually or in combination with WAT!, showed significant increases in Nutrition knowledge, Vegetable preference, and Vegetable tasted (p < 0.001 in all cases). Within-group analyses show that compared to Comparison, children in the WAT! group significantly increased in the amount of time parents and children were active together (p = 0.038). In addition, children in LGEG and WAT! schools significantly decreased BMI percentile (p = 0.042, p = 0.039, respectively), relative to children in Comparison schools. Conclusions: Both the garden and PA interventions independently produced significant changes related to healthy lifestyle behaviors. However, combining the two interventions did not show greater impact than the single interventions, underscoring the need for more research to determine how to better implement comprehensive interventions at schools.

Using Family-Focused Garden, Nutrition, and Physical Activity Programs To Reduce Childhood Obesity: The Texas! Go! Eat! Grow! Pilot Study.

BACKGROUND: The TEXAS! GROW! EAT! GO! (TGEG) randomized, control trial is a 5-year study to measure the impact of a nutrition and gardening intervention and/or physical activity (PA) intervention on the weight status of third-grade students. This article describes the results of the pilot study to test the feasibility of two interventions and test the measures to be used in the main trial. METHODS: The pilot study was conducted in one school with third-grade students and their parents or guardians. The Junior Master Gardner (JMG) and Walk Across Texas (WAT) interventions were implemented over a 5-month period in three third-grade classrooms during spring 2012. The respective interventions focused on improving healthy eating and PA behaviors of children and their families. Baseline and immediate post-test data were collected from students and parents/guardians to measure four child, four parent, and four parent-child interaction behaviors. Process data regarding implementation were also collected from teachers and school administration. RESULTS: Forty-four students and 34 parents or guardians provided both pre- and post-test data. Paired-sample t-tests showed statistically significant changes in student knowledge, vegetable preferences, vegetable consumption, and home food availability (all p < 0.05). At baseline, participants' weight status categories included 57% obese, 10% overweight, and 31% normal weight. Postintervention, weight status categories included 39% obese, 16% overweight, and normal 45%. Data collected from teachers indicated high levels of implementation fidelity. CONCLUSIONS: Implementation of both interventions occurred at a very high fidelity level, which led to positive changes in BMI status, and several dietary and PA behaviors. Although the pilot study indicated feasibility of the two interventions for school implementation, results guided revisions to the TGEG program and its survey instruments.