Toddler obesity prevention: A two-generation randomized attention-controlled trial

Area of Science:

• Pediatrics
• Public Health
• Behavioral Science

Background:

• Rapid weight gain in early childhood is linked to obesity and related health issues.
• Early life interventions are crucial for establishing healthy growth trajectories and preventing long-term comorbidities.
• Understanding the interplay between maternal and child behaviors is vital for effective weight management strategies.

Purpose of the Study:

• To evaluate the impact of responsive parenting and maternal lifestyle interventions on reducing the rate of body mass index (BMI) z score growth in toddlers.
• To assess secondary outcomes including physical activity, mealtime interactions, and fruit/vegetable intake in toddler-mother dyads.
• To explore intervention effects based on toddler age and the integration of parenting and lifestyle approaches.

Main Methods:

• A randomized three-arm trial involving 277 toddler-mother dyads over 4 months, comparing responsive parenting and maternal lifestyle interventions against a home safety control.
• Data collection included anthropometric measurements, accelerometry for physical activity, video-recorded mealtime interactions, and 24-hour diet recalls.
• Analyses utilized linear mixed-effects models to compare changes in BMI z score and other outcomes between intervention and control groups.

Main Results:

• No significant reduction in the rate of toddler BMI z score or maternal BMI was observed.
• Toddlers and mothers in the maternal lifestyle group showed increased physical activity.
• Fruit intake increased in both intervention groups, but hostile mealtime interactions rose in the maternal lifestyle group.

Conclusions:

• Integrated two-generation interventions focusing on responsive parenting and maternal lifestyle warrant further investigation for toddler-mother dyads.
• Responsive parenting appears crucial for positive mealtime dynamics, suggesting its inclusion in dietary interventions.
• While direct impact on weight gain was not significant, observed improvements in physical activity and fruit intake highlight potential benefits for future research.