Preliminary results of the planet nutrition program on obesity parameters in Mexican schoolchildren: Pilot single-school randomized controlled trial

Diana L. Ramírez-Rivera, Teresita Martínez-Contreras, Rosa C. Villegas-Valle, Gricelda Henry-Mejia, Trinidad Quizán-Plata, Michelle M. Haby, Rolando G. Díaz-Zavala*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

School-based obesity prevention programs are key to promoting healthy habits. The aim of this study was to evaluate the effect of the Planet Nutrition program on BMI z-score and other parameters compared to a control group of Mexican schoolchildren after 9 weeks of intervention. The effect of the summer holidays on the BMI z-score was also evaluated at 23 weeks. A pilot randomized controlled trial design was used and 41 schoolchildren were randomized (21 intervention group and 20 control). The program included 18 nutrition education sessions, 20 physical activity classes and six brochures for parents. At 9 weeks, no significant differences were found between the intervention and control groups in the change in BMI z-score (−0.11, 95% CI −0.23, 0.01). Significant differences were observed in some secondary outcomes: body fat percentage (−1.72, 95% CI −3.42, −0.02), waist circumference (−3.45, 95% CI −5.55, −1.36), physical activity (0.44, 95% CI 0.01, 0.88) and nutrition knowledge (1.15, 95% CI 0.27, 2.03). Summer holidays negatively affected the BMI z-score in both groups, reducing the difference observed between groups at 9 weeks (−0.07, 95% CI −0.22, 0.07). The Planet Nutrition program showed favorable effects in some obesity and lifestyle parameters in the short term.

Original languageEnglish
Article number790
Pages (from-to)1-15
Number of pages15
JournalInternational Journal of Environmental Research and Public Health
Volume18
Issue number2
DOIs
StatePublished - 2 Jan 2021

Bibliographical note

Funding Information:
The expenses incurred by this research study were covered by the University of Sonora (12613 Fund).

Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.

Keywords

  • Children
  • Healthy lifestyle
  • Intervention
  • Nutritional education
  • Obesity
  • Physical activity promotion
  • Prevention
  • School-based programs

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