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Hip-Hop to Health Jr. Obesity Prevention Effectiveness Trial: postintervention results
Marian L Fitzgibbon1, Melinda R Stolley, Linda A Schiffer
1Department of Medicine, University of Illinois at Chicago, Chicago, Illinois, USA. mlf@uic.edu
Insights
A teacher-delivered obesity prevention program for Black preschoolers improved physical activity and reduced screen time. While feasible, the intervention did not significantly impact diet or BMI, highlighting measurement challenges.
Area of Science:
- Pediatric obesity prevention
- Public health interventions
- Early childhood education
Background:
- Preschool years are critical for addressing obesity trajectories in Black children.
- Obesity prevention programs require effective delivery methods for young children.
- Teacher-led interventions offer a scalable approach in school settings.
Purpose of the Study:
- To assess the feasibility and effectiveness of a teacher-delivered obesity prevention intervention for Black preschoolers.
- To evaluate the impact of the 'Hip-Hop to Health Jr.' program on physical activity, screen time, diet, and BMI.
- To determine if classroom teachers can successfully implement a weight control intervention.
Main Methods:
- Group-randomized controlled trial involving 618 Black preschoolers across 18 Chicago Public Schools.
- Intervention group received a 14-week weight control program delivered by teachers.
- Control group received a general health intervention. Data collected at baseline and postintervention.
Main Results:
- Intervention group showed significantly increased moderate-to-vigorous physical activity (MVPA) (7.46 min/day, P=0.02).
- Intervention group had significantly reduced total screen time (-27.8 min/day, P=0.05).
- No significant differences observed in BMI, BMI Z-score, or dietary intake between groups.
Conclusions:
- Teacher-delivered obesity prevention is feasible in preschool settings.
- The intervention positively influenced physical activity and screen time behaviors.
- Measuring diet and physical activity in preschoolers presents challenges; teacher training and supervision are crucial for intervention success.
Abstract:
The preschool years offer an opportunity to interrupt the trajectory toward obesity in black children. The Hip-Hop to Health Jr. Obesity Prevention Effectiveness Trial was a group-randomized controlled trial assessing the feasibility and effectiveness of a teacher-delivered weight control intervention for black preschool children. The 618 participating children were enrolled in 18 schools administered by the Chicago Public Schools. Children enrolled in the nine schools randomized to the intervention group received a 14-week weight control intervention delivered by their classroom teachers. Children in the nine control schools received a general health intervention. Height and weight, physical activity, screen time, and diet data were collected at baseline and postintervention. At postintervention, children in the intervention schools engaged in more moderate-to-vigorous physical activity (MVPA) than children in the control schools (difference between adjusted group means = 7.46 min/day, P = 0.02). Also, children in the intervention group had less total screen time (-27.8 min/day, P = 0.05). There were no significant differences in BMI, BMI Z score, or dietary intake. It is feasible to adapt an obesity prevention program to be taught by classroom teachers. The intervention showed positive influences on physical activity and screen time, but not on diet. Measuring diet and physical activity in preschool children remains a challenge, and interventions delivered by classroom teachers require both intensive initial training and ongoing individualized supervision.
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