Childhood obesity prevention across borders: The promise of U.S.-Latin American research collaboration

A Scoping Review of School-Based Nutrition and Physical Activity Interventions Conducted in Mexico

Introduction: As the Mexican economy has developed, ultra-processed, high fat, low fiber, and high sugar foods have become more prevalent. Almost one in four children in the country is overweight or obese. The Mexican government has school nutrition guidelines and policies. Several schools have implemented programs to improve child nutrition and physical activity knowledge and behaviors in an effort to reduce childhood overweight and obesity. The aim of this review is to assess the range of school-based nutrition and physical activity interventions and their possible impact on health and wellness. Methods: A scoping review of English and Spanish language published peer-reviewed studies examined existing literature on school-based nutrition and physical activity interventions implemented in Mexican schools for children and adolescents. The 17 studies meeting inclusion criteria were analyzed for program content and outcomes. Results: All interventions had some impact on either knowledge, attitudes, and/or behaviors. Almost all interventions incorporated parents. These programs occurred within the context of national guidelines issued by the Mexican government and a renewed focus on the increasing problem of childhood obesity. Conclusion: Mexico's school-based nutrition and physical activity interventions can impact nutritional knowledge, food and beverage choices, and physical activity behaviors.

Effect of a Community-Based Program on Preschoolers' Physical Activity and Nutrition in Chile

Introduction: Childhood obesity has reached critical levels in Chile, particularly among preschoolers from low-income families who face barriers to nutritious food and physical activity. Early interventions are essential to mitigate long-term health risks. This study evaluates the Chile Active Intervention, a community-based program promoting physical activity and healthy eating among preschoolers attending public daycare centers in Antofagasta, Santiago, and Temuco. Objective: To assess the effectiveness of a structured intervention in improving physical activity levels, dietary habits, and obesity-related risk factors in children aged 3 to 5 years old. Methods: A quasi-experimental design was implemented with intervention and control groups, including 1204 children from public daycare centers. The intervention-comprised educator training on healthy eating structured physical activity sessions tailored for young children and family engagement through "Healthy Days" events. Pre- and post-intervention assessments measured anthropometric variables, body composition, physical activity, and dietary intake. Results: The intervention led to positive changes in weight-for-height Z-scores, body fat percentage, and skinfold thickness, particularly among high-risk children. Physical activity assessments showed reduced sedentary time and increased active play. Dietary improvements included higher fruit and vegetable consumption and reduced ultra-processed food intake. Conclusions: This study demonstrates that early, community-based interventions can effectively improve health behaviors in preschoolers. The program's scalability across Chile is promising, with parental involvement and institutional support being key to sustaining impact. Long-term evaluations are recommended to assess its lasting effects on childhood health outcomes.

The role of various physiological and bioelectrical parameters for estimating the weight status in infants and juveniles cohort from the Southern Cuba region: a machine learning study

OBJECTIVE

The search for other indicators to assess the weight status of individuals is important as it may provide more accurate information and assist in personalized medicine.This work is aimed to develop a machine learning predictions of weigh status derived from bioimpedance measurements and other physical parameters of healthy infant juvenile cohort from the Southern Cuba Region, Santiago de Cuba.

METHODS

The volunteers were selected between 2002 and 2008, ranging in age between 2 and 18 years old. In total, 393 female and male infant and juvenile individuals are studied. The bioimpedance parameters are obtained by measuring standard tetrapolar whole-body configuration. A classification model are performed, followed by a prediction of other bioparameters influencing the weight status.

RESULTS

The results obtained from the classification model indicate that fat-free mass, reactance, and corrected resistance primarily influence the weight status of the studied population. Specifically, the regression model demonstrates that other bioparameters derived from impedance measurements can be highly accurate in estimating weight status.

CONCLUSION

The classification and regression predictive models developed in this work are of the great importance for accessing to the weigh status with high accuracy of younger individuals at the Oncological Hospital in Santiago de Cuba, Cuba.

A systematic review of school-based weight-related interventions in the Gulf Cooperation Council countries

BACKGROUND

The prevalence of childhood overweight and obesity has increased at alarming levels in the Gulf Cooperation Council (GCC) countries (Saudi Arabia, United Arab Emirates (UAE), Kuwait, Bahrain, Oman, and Qatar). Weight-related interventions are urgently required in these countries to tackle childhood overweight and obesity and their-related consequences. To date, no systematic review has synthesised school-based weight-related interventions in the six GCC countries. This study aims to systematically review school-based, weight-related interventions conducted in the GCC countries, investigating the intervention characteristics, components, and outcomes.

METHODS

Medline, Scopus, and ProQuest databases were searched for peer-reviewed literature published in English without date restriction and Google Scholar for grey literature using combined Medical Subject Heading (MeSH) terms and keywords under five relevant concepts including population, setting, interventions, outcomes, and geographical location. Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA), records were identified, screened for eligibility, and included in this review. Using the Effective Public Health Practice Project tool, the methodological quality of the included studies was assessed independently by two authors.

RESULTS

Out of 1303 initially identified records, eight peer-reviewed articles and three doctoral theses were included in this review. The age of the students in the included studies ranged between 5 to 19 years, and the sample sizes between 28 and 3,967 students. The studies included between one and thirty public and private schools. Of the included studies, six were randomised controlled trials, four pre-post studies and one used a post-study design. Only four of the eleven studies were theory based. The included studies reported various improvements in the students' weight or weight-related lifestyle behaviours, such as healthier dietary choices, increased physical activity, and decreased sedentary behaviour.

CONCLUSIONS

This review suggests the potential effectiveness of school-based interventions in the GCC countries. However, a thorough evaluation of these studies revealed significant methodological limitations that must be acknowledged in interpreting these results. Future studies in this field should be theory-based and use more rigorous evaluation methods.

SYSTEMATIC REVIEW REGISTRATION

PROSPERO registration number: CRD42020156535.

Global Trends in Scientific Research on Pediatric Obesity

(1) Introduction: The aim of this study was to analyze scientific production, collaboration among countries, and research topics focusing on pediatric obesity. (2) Methods: The papers that were included in the study were retrieved from the Web of Science Core Collection from Clarivate Analytics. A bibliometric analysis of several focuses, including journals of publication, subject categories, most frequent author keywords, and journal impact factors, was conducted. Social network analysis was used to recognize collaboration groups between countries and the co-occurrences of author keywords. (3) Results: A total of 12,171 research articles were published in 2036 journals classified under a variety of subject areas, with pediatrics (27.7%), nutrition and dietetics (18.5%), and public environmental and occupational health (18.4%) accounting for the most frequent study areas, and Pediatric Obesity (309), the International Journal of Obesity (299), and BMC Public Health being the most productive journals. The main challenges identified for pediatric obesity include general topics such as physical activity, nutrition, diet, and prevention as well as other more specific challenges such as metabolic syndrome, insulin resistance, eating behavior, and cardiovascular diseases. (4) Conclusions: We observed a growth rate in the number of published articles of 59.8%, which serves as evidence of the importance of the topic. The number of funded papers also doubled from 2010 to 2019. There has been significant global collaboration on the topic, with countries across five continents being involved. The results of the thematic analysis reveal the importance of exercise and nutrition-related topics along with specialized health terms and terms related to public health.

Childhood obesity prevention across borders: A National Institutes of Health commentary

In response to the increasing rates of childhood obesity, the United States and countries across Latin America have invested in research that tests innovative strategies and interventions. Despite this, progress has been slow, uneven, and sporadic, calling for increased knowledge exchange and research collaboration that accelerate the adaptation and implementation of promising childhood obesity interventions. To share research results, challenges, and proven intervention strategies among Latin American and US researchers, particularly those working with Latino and Latin American populations, the National Institutes of Health (NIH) convened researchers from the United States and Latin America to highlight synergies between research conducted in Latin America and among Latino populations in the United States with the goal of catalyzing new relationships and identifying common research questions and strategies. This article highlights the NIH's research and priorities in childhood obesity prevention as well as areas for future direction, including overarching NIH plans and NIH institutes, centers, and offices investments in specific areas related to childhood obesity prevention in Latin America and/or among Latino populations in the United States.

Responsive Feeding Recommendations: Harmonizing Integration into Dietary Guidelines for Infants and Young Children

Responsive feeding (RF) involves reciprocal nurturing feeding practices between the caregiver and the child that encourage the child to develop preferences for healthy foods and beverages and to eat autonomously. In this commentary, we summarize RF-related findings from a recent US National Academies of Sciences, Engineering, and Medicine (National Academies) consensus study report examining consistency in infant and young child feeding (IYCF) recommendations in guidelines from high-income countries, and we discuss implications for future IYCF guidelines. Although existing guidelines included generally consistent messages about several RF behaviors, such as the importance of encouraging self-feeding and self-regulation in infants and toddlers, they generally did not present the recommendations as part of a cohesive RF interdisciplinary framework. Moving forward, evidence-based RF recommendations should be routinely incorporated and identified in dietary guidance for IYCF based on a consensus definition of RF grounded in sound responsive parenting and feeding frameworks. We recommend replicating the National Academies' scoping review in low- and middle- income countries and mixed-methods implementation science research to improve our understanding of how best to disseminate and implement RF-related recommendations across settings (e.g., home and early care and education centers), taking the social determinants of health into account.