Systematic Review: Frameworks Used in School-Based Interventions, the Impact on Hispanic Children's Obesity-Related Outcomes

Participatory intervention to improve nutrition and physical activity of school-age children in Mexico

Obesity is one of the major public health problems of the 21st century, affecting every country in the world. In Mexico, the prevalence of overweight and obesity in children (5 to 11 years) was 35.5%. Childhood obesity is a chronic disease itself; and is associated with other chronic conditions.

OBJECTIVE

To assess the effect and feasibility of a participatory intervention to improve nutrition and physical activity within the school environment in children in public elementary schools in Mexico.

METHODS

The present study is a cluster trial. The intervention focused on; changes in food offered, training the schools' food service staff, promoting water consumption and physical activity at the community level, implementing healthy spaces inside the school, improving the quality of physical education within schools, among others. The main outcomes will focus on rate of weight gain, time devoted to physical activity, sedentary behaviors, diet quality and response feeding behaviors. We also will assess the time and personnel involved in the intervention development, maintenance, and dissemination.

CONCLUSION

Findings from this trial will generate new translational knowledge in Mexico; if the results are positive, this participatory intervention could serve as a basis for designing multidimensional interventions that could be scaled up at the national level.

Overview of Systematic Reviews of Health Interventions for the Prevention and Treatment of Overweight and Obesity in Children

(1) Background: The importance of studying the health interventions used to prevent and treat overweight and obesity in school-aged children is imperative. This overview aimed to summarize systematic reviews that assess the effects of school-based, family, and mixed health interventions for preventing and treating overweight and obesity in school-aged children. (2) Methods: The Cochrane Collaboration methodology and PRISMA statement were followed. A search was conducted using terms adapted to 12 databases. Systematic reviews reporting interventions in children from six to 12 years old with an outcome related to preventing or treating obesity and overweight were included. Studies with pharmacological or surgical interventions and adolescents were excluded. (3) Results: A total of 15,226 registers were identified from databases and citation searching. Of those, ten systematic reviews published between 2013 and 2022 were included. After the overlap, 331 interventions for children between 6 and 12 years old were identified, and 61.6% involved physical activity and nutrition/diet intervention. Multicomponent intervention, combining physical activity with nutrition and behavioral change, school-based plus community-based interventions may be more effective in reducing overweight and obesity in children. (4) Conclusions: Plenty of interventions for childhood overweight and obesity aimed at prevention and treatment were identified, but there is a gap in the methodological quality preventing the establishment of a certain recommendation.

The influence of Chile's food labeling and advertising law and other factors on dietary and physical activity behavior of elementary students in a peripheral region: a qualitative study

BACKGROUND

In 2016, Chile implemented the Food Labeling and Advertising Law to fight childhood obesity through front-of-package food labelling, marketing restrictions and school activities and programs. Nevertheless, little is known on its influence on key stakeholders in vulnerable peripheral regions of the country. This study aimed at identifying important influencing factors including the Food Labeling and Advertising Law on dietary habits and physical activity patterns of second graders in Chile, as perceived by school representatives and the children themselves.

METHODS

Semi-structured interviews with four school directors and 17 groups of three second graders, informal interviews with 9 key teachers and 4 food services staff complemented with documented observations were carried out in four primary schools of the Chilean city of Punta Arenas, in the Magallanes Punta Arenas region. The different sources allowed for triangulation of results.

RESULTS

FLAL seems to have a negligible influence on young children's diet and physical activity in the study region. Barriers are children's deeply rooted dietary habits, excessive screen-time, the parents' lacking problem awareness, limited time for parenting practices and bad role modeling. Environmental barriers are overloaded schools due to insufficient coordination between governmental entities, lacking funds for sound teacher training and unsafe neighborhoods limiting children's play.

CONCLUSIONS

Policy interventions aimed at reducing childhood obesity need to include and empower schools, families and local communities as active partners and consider their framework conditions for greater influence on dietary habits and physical activity.

School food programmes in the Pacific Islands: exploring opportunities and challenges for creating healthier school food environments

OBJECTIVE

The school setting can provide an environment that supports healthy behaviours, including the provision of food. School food activities, that is, school feeding, are commonplace globally, but not well understood in the Pacific Islands region. The aim of this research is to explore learnings associated within existing school food programmes (SFP), and adoption resistors in those Pacific Island Countries and Territories (PICT) without SFP, with the intent of improving current and future SFP interventions.

DESIGN

This observational cross-sectional study utilised four facilitated workshop sessions to explore SFP within an existing framework.

SETTING

Pacific Islands region.

PARTICIPANTS

Fourteen participants representing the education and health sectors from eleven PICT, and two participants representing regional organisations.

RESULTS

Most countries reported some form of related policy, but key critical constraints to the use of SFP included local food environments, strategic alignment to organisational priorities, advocacy and organisational leadership, and community and cultural connections and collaboration. There are opportunities for integration of SFP into existing frameworks (i.e. Health Promoting Schools), increased collaboration, greater professional development and awareness activities, improved monitoring and evaluation, improved awareness of SFP and promotion of healthy eating for the wider school community.

CONCLUSIONS

Given the current health, social and economic challenges faced by countries and territories in the Pacific Islands region, SFP should be considered as an opportunity for food provision and associated nutrition education for students and their wider community. Further research is needed to understand the critical constraints of SFP in this region and how to support stakeholders to advocate for, develop and sustain SFP that are contextually and culturally appropriate.

Sustainability via Active Garden Education: The Sustainability Action Plan Model and Process

Sustainability of intervention programming is challenging to achieve under real world conditions, since few models exist and many studies do not plan far beyond the funding period. Programming content in early care and education centers (ECECs) is often driven by guidelines. However, implementation is very sensitive to contextual factors, such as the setting and implementer (teacher) characteristics. This paper presents the model, definitions, and methodology used for the sustainability action plan capitalizing on a community-based participatory research (CBPR) approach, developed for a multi-site, multi-level garden-based childhood obesity prevention study, Sustainability via Active Garden Education (SAGE). The Ecologic Model of Obesity is applied to develop a sustainability action plan (SAP) and accompanying measures to link early care and education (ECE) environment, the community, policies, and classroom practices to an early childhood obesity prevention program. The SAGE SAP provides an example of how to iteratively evaluate and refine sustainability processes for an obesity prevention intervention utilizing CBPR approaches and will be applied to assess the sustainability of SAGE in a cluster randomized controlled trial. This SAP model can also help inform intervention delivery and scalability within ECECs.

A Harvest of the Month Curriculum Increases Fruit and Vegetable Intake among 4th-6th Grade Students

BACKGROUND

Most children do not eat enough fruits and vegetables (FV). Schools are a critical setting for supporting children to consume FV. To fill a gap in available materials, a classroom curriculum was developed and evaluated to determine impacts on student FV-related knowledge, attitudes, and behaviors.

METHODS

A pre-/post-intervention survey was administered to 4th-6th grade students in 3 intervention and one comparison schools. Post-intervention student focus groups, parent/guardian surveys, and teacher surveys provided complementary information.

RESULTS

Intervention students had a significantly greater increase in total FV intake, fruit intake, and 100% juice consumption, and preference for several types of FV relative to comparison group students. Students, teachers, and parents reported overall high levels of satisfaction with the curriculum.

CONCLUSIONS

The Harvest of the Month curriculum is effective at increasing fruit intake among a low-income, diverse student population in grades 4-6, is acceptable to students, teachers, and parents, and is feasible to implement. Findings suggest this impact is the result of changes in preferences, skills, and motivation but not self-efficacy or perceived social norms. Some tailoring of the curriculum may be needed to increase its appropriateness for 6th-grade students, increase the impact on vegetable intake, and limit intake of juice.

Current Systems-Level Evidence on Nutrition Interventions to Prevent and Treat Cardiometabolic Risk in the Pediatric Population: An Evidence Analysis Center Scoping Review

Improving and maintaining cardiometabolic health remains a major focus of health efforts for the pediatric population. Recent research contributes understanding of the systems-level nutrition factors influencing cardiometabolic health in pediatric individuals. This scoping review examines current evidence on interventions and exposures influencing pediatric cardiometabolic health to inform registered dietitian nutritionists working at each systems level, ranging from individual counseling to public policy. A literature search of MEDLINE, CINAHL, Cochrane Databases of Systematic Reviews, and other databases was conducted to identify evidence-based practice guidelines, systematic reviews, and position statements published in English from January 2017 until April 2020. Included studies addressed nutrition interventions or longitudinal exposures for participants 2 to 17 years of age who were healthy or had cardiometabolic risk factors. Studies were categorized according level of the social-ecological framework addressed. The databases and hand searches identified 2614 individual articles, and 169 articles were included in this scoping review, including 6 evidence-based practice guidelines, 141 systematic reviews, and 22 organization position statements. The highest density of systematic reviews focused on the effects of dietary intake (n = 58) and interventions with an individual child or family through counseling or education (n = 54). The least frequently examined levels of interventions or exposures were at the policy level (n = 12). Registered dietitian nutritionists can leverage this considerable body of recent systematic reviews to inform a systems-level, collaborative approach to prevention and treatment of pediatric cardiometabolic risk factors.

Determining Effective Nutrition Intervention Strategies and the Subsequent Impact on Nutrition Knowledge, Dietary Adherence, and Health Outcomes among American Indian/Alaska Native Youth (2-18 Years of Age): a Systematic Review

The PRISMA style literature review was used to determine effective nutrition intervention strategies and their subsequent impact on nutrition knowledge, dietary adherence, and health outcomes among American Indian/Alaskan Native (AI/AN) youth. Peer-reviewed articles published between January 1980 and December 2019 were extracted from PubMed, CINAHL, Cochrane, and PsychInfo databases. A 4-point inclusion criterion was established to include articles with AI/AN youth, nutrition intervention, and presented health outcomes. A quality criteria checklist was used to assess the articles. A total of 12 studies were included in this study. Interventions that incorporated cultural adaptations (e.g., storytelling), theoretical frameworks (e.g., community-based participatory), active learning (e.g., cooking), tribal partnership, and caregiver involvement slightly improved nutrition knowledge, dietary adherence, and health outcomes. Overall, this review revealed that incorporating cultural aspects with input from the community in a nutrition program has a positive impact on AI/AN youths. Steps can be taken at the policy level to direct obesity and non-communicable disease prevention efforts among AI/AN youth.

Advancing Oral Health Equity Through School-Based Oral Health Programs: An Ecological Model and Review

In the United States and elsewhere, children are more likely to have poor oral health if they are homeless, poor, and/or members of racial/ethnic minority and immigrant populations who have suboptimal access to oral health care. As a result, poor oral health serves as the primary marker of social inequality. Here, the authors posit that school-based oral health programs that aim to purposefully address determinants of health care access, health and well-being, and skills-based health education across multiple levels of influence (individual/population, interpersonal, community, and societal/policy) may be more effective in achieving oral health equity than programs that solely target a single outcome (screening, education) or operate only on the individual level. An ecological model is derived from previously published multilevel frameworks and the World Health Organization (WHO) concept of a health-promoting school. The extant literature is then examined for examples of evaluated school-based oral health programs, their locations and outcomes(s)/determinant(s) of interest, the levels of influence they target, and their effectiveness and equity attributes. The authors view school-based oral health programs as vehicles for advancing oral health equity, since vulnerable children often lack access to any preventive or treatment services absent on-site care provision at schools. At the same time, they are incapable of achieving sustainable results without attention to multiple levels of influence. Policy solutions that improve the nutritional quality of children's diets in schools and neighborhoods and engage alternative providers at all levels of influence may be both effective and equitable.

Evaluation of Worksite Wellness Nutrition and Physical Activity Programs and Their Subsequent Impact on Participants' Body Composition

Background

Adult obesity is globally recognized as a public health concern. As adults spend most of their weekdays at work, worksite wellness programs may include topics of nutrition education and physical activity to improve an employee's body composition. However, results are inconsistent with the impact they have on employees' body composition.

Objective

The purpose of this systematic review was to evaluate worksite wellness nutrition and physical activity programs and their subsequent impact on participants' body composition.

Methods

Extraction of articles was completed through 4 databases: PubMed, CINAHL, SCOPUS, and PsycINFO using keywords such as "nutrition and physical activity interventions/programs" and "weight." A 9-point inclusion criterion was established. Evaluation of the articles was assessed using the Academy of Nutrition and Dietetics Evidence-Based Manual.

Results

A total of 962 articles were identified. Twenty-three met the inclusion criterion. Seventeen studies resulted in a change in body composition (e.g., decreased BMI (kg/m2), waist circumference, and body fat percentage), and six studies did not show any changes. Programs that had professionals frequently interact with participants, regardless if the interactions were done daily, weekly, or monthly, led to a change in body composition. Additionally, programs that incorporated a motivation theory and provided content relevant to participants' needs resulted in a change in body composition.

Conclusion

Evidence supports that future worksite wellness programs that are designed using a motivational theory and content that is created relevant to participants' needs and that has frequent interactions with participants may result in a change in body composition.