Development of the PEA-PODS (Perceptions of the Environment and Patterns of Diet at School) Survey for Students

Physical Activity, Confidence, and Social Norms Associated With Teachers' Classroom Physical Activity Break Implementation

Despite the benefits of classroom physical activity breaks on student health and academic outcomes, more research is needed to understand what factors may be associated with classroom physical activity break implementation, to bolster buy-in from school stakeholders and increase implementation. This quantitative study examined frequency of classroom physical activity break implementation in relation to (1) objectively measured teachers' physical activity and sedentary behaviors, (2) confidence for leading classroom physical activity breaks, (3) social norms (perceptions of other teachers' classroom physical activity break implementation), and (4) teacher- and school-level demographics. In total, 153 classroom teachers in 20 elementary and middle schools completed a survey including classroom physical activity break frequency, confidence, and social norms, one item each, dichotomized (1 = "most/all the time" OR "agree/strongly agree"). Accelerometry assessed total activity and daytime sedentary behavior. Analyses included multilevel binary logistic regression. Teachers were 90% female, 68% White, and 55% in elementary schools. Odds of implementing classroom physical activity breaks were lower among middle school teachers, 14 times greater among those with greater confidence, and over 17 times greater when teachers perceived others frequently implementing classroom physical activity breaks. Teacher activity was not associated with classroom physical activity break implementation. Future interventions to increase classroom physical activity break implementation should focus on increasing teachers' confidence to lead classroom physical activity breaks and creating more buy-in from classroom teachers to enhance each school's culture of health. By enhancing teacher confidence and social norms for implementing classroom physical activity breaks, we may increase school-based physical activity opportunities.

Studying the impact of COVID-19 mitigation policies on childhood obesity, health behaviors, and disparities in an observational cohort: Protocol for the COVID-19 Family Study

BACKGROUND

COVID-19 pandemic control policies, including school closures, suspended extra-curricular activities, and social distancing, were introduced to prevent viral transmission, and disrupted children's daily routines, health behaviors, and wellness. This observational cohort study among 697 families with children or adolescents, based on the Family Stress Model, aims to: 1) evaluate pre- to during-pandemic changes in child health behaviors (diet, physical activity, sleep) and weight gain, 2) identify mechanisms explaining the changes, and 3) determine projected healthcare costs on weight gain and obesity. Each aim includes an examination by racial and ethnic, socioeconomic, and geographic disparities.

METHODS

The study employs a mixed methods design, recruiting children and their caregivers from two obesity prevention trials halted in 2020. Enrolled participants complete annual surveys to assess child health behaviors, family resources, routines, and demographics, and home environment in 2020-2022. Height and weight are measured annually in 2021-2022. Annual semi-structured interviews are conducted within a subsample to understand mechanisms of observed changes. Multilevel mixed models and mediation analyses are used to examine changes in child health behaviors and weight gain and mechanisms underlying the changes. Qualitative data are analyzed within and across time points and integrated with quantitative findings to further explain mechanisms. Markov models are used to determine healthcare costs for unhealthy child behaviors and weight gain.

CONCLUSION

Findings from this study will aid in understanding pandemic-related changes in child health behaviors and weight status and will provide insights for the implementation of future programs and policies to improve child and family wellness.

Perceptions of Parental Support for Physical Activity and Healthy Eating among School-age Children During COVID-19 pandemic

Family routines play a key role in promoting child health behaviors. This study 1) describes changes in children's perceptions of physical activity (PA) and healthy eating family routines across three time points: pre-pandemic (2017-2020), early pandemic (2020), and mid-pandemic (2021); and 2) explores how sex, age, and pandemic-related economic stressors relate to changes. Children's perceptions of family routines were assessed using four subscales adapted from the Comprehensive Home Environment Survey: PA-policies, Diet-policies, Diet-rules, and PA-Diet-role-model. Linear mixed models assessed changes in perceptions and associated factors (child age and sex; caregiver(s) job loss during pandemic). Children (N=277) were aged 9.3-15.5y at pandemic onset (March 2020), dichotomized by median age (12.1y) as younger and older. Children's perceptions of PA-policies (pre-pandemic mean=15.4) and Diet-policies (pre-pandemic mean=26.3) increased significantly from pre- to early (b=1.2 and 2.3, respectively) and mid-pandemic (b=1.0 and 1.2, respectively). Diet-rules (pre-pandemic mean=10.8) decreased significantly from pre- to early (b=-1.1) and mid-pandemic (b=-2.0), with no PA-Diet-role-model changes. Younger children had a greater increase in perceived PA-policies and Diet-policies across the pandemic. Females (59.9%) had a greater decrease in perceived Diet-rules across the pandemic and less increase in Diet-policies and PA-Diet-role-model from pre- to early pandemic. Children whose caregiver(s) lost employment (51.8%) perceived a greater increase in PA-policies. Overall, children reported increased parental policies to support PA and healthy eating and decreased parental rules for diet during the pandemic. Future research is needed to understand how changes in family routines relate to PA and healthy eating behaviors.

Shifting From Tokenism to Meaningful Adolescent Participation in Research for Obesity Prevention: A Systematic Scoping Review

Background: Traditionally, adolescent participation in research has been tokenistic. Adolescents are rarely afforded the opportunity to influence decision-making in research designed to prevent obesity. Engaging adolescents in meaningful decision-making may enhance research translation. This review aimed to analyze the current modes and nature of adolescent participation in obesity prevention research decision-making. Methods: A systematic scoping review was conducted using Arksey and O'Malley's six-stage framework. Six major databases were searched for peer-reviewed primary research studies with adolescent participation related to obesity, physical activity, and diet. Modes of adolescent participation were categorized based on the Lansdown-UNICEF conceptual framework for measuring outcomes of adolescent participation. The framework outlines three modes of meaningful participation: (i) consultative, which involves taking opinions and needs into consideration; (ii) collaborative, where adolescents are partners in the decision-making process; and (iii) adolescent-led participation where adolescents have the capacity to influence the process and outcomes. The degree of involvement in research cycles was classified based on the National Health and Medical Research Council consumer engagement framework. Five stages of the research cycle were determined: identify, design and develop, conduct, analyze and disseminate. Results: In total, 126 papers describing 71 unique studies were identified. Of these, 69% (49/71) took place in the USA, and 85% (52/61) were conducted in minority or underserved communities, while males were more likely to be under-represented. In 49% (35/71) of studies, participation was consultative and 9% (6/71) of studies involved an adolescent-led approach. Furthermore, 87% (62/71) of studies incorporated adolescent participation in one or more of the research cycle's formative phases, which involve eliciting views, opinions and idea generation. Only 11% of studies engaged adolescents in all five stages of the research cycle where adolescents could have more influence over the research process. Conclusion: Meaningful adolescent participation in the obesity prevention research cycle is limited. Empowering and mobilizing equal partnership with adolescents should be at the forefront of all adolescent-related obesity prevention research.

Students' perceptions of school sugar-free, food and exercise environments enhance healthy eating and physical activity

OBJECTIVE

The objective of this study was to examine the relationships between students' perceptions of their school policies and environments (i.e. sugar-sweetened beverages (SSB) free policy, plain water drinking, vegetables and fruit eating campaign, outdoor physical activity initiative, and the SH150 programme (exercise 150 min/week at school)) and their dietary behaviours and physical activity.

DESIGN

Cross-sectional study.

SETTING

Primary, middle and high schools in Taiwan.

PARTICIPANTS

A nationally representative sample of 2433 primary school (5th-6th grade) students, 3212 middle school students and 2829 high school students completed the online survey in 2018.

RESULTS

Multivariate analysis results showed that after controlling for school level, gender and age, the students' perceptions of school sugar-free policies were negatively associated with the consumption of SSB and positively associated with consumption of plain water. Schools' campaigns promoting the eating of vegetables and fruit were positively associated with students' consumption of vegetables. In addition, schools' initiatives promoting outdoor physical activity and the SH150 programme were positively associated with students' engagement in outdoor physical activities and daily moderate-to-vigorous physical activity.

CONCLUSIONS

Students' perceptions of healthy school policies and environments promote healthy eating and an increase in physical activity for students.

Associations between elementary and middle school teachers' physical activity promoting practices and teacher- and school-level factors

BACKGROUND

Few studies have evaluated teacher- and school-level characteristics associated with implementation of recommended physical activity (PA) promoting practices. The purpose of this study is to examine associations between teachers' PA practices and: [1] teacher-level factors, including their own PA, and [2] school-level factors.

METHODS

This cross-sectional study examined time spent daily in light PA (LPA) and moderate-vigorous PA (MVPA) in association with 7 teacher PA practices among 288 classroom/special area teachers and teaching assistants in 20 urban, suburban and rural schools (recruited through a school wellness trial) in 4 districts. LPA and MVPA was assessed using 24-h ankle accelerometry (up to seven consecutive days). A sum score for teacher PA practices was assessed via survey (7 items; sum score range: 7-35; Cronbach's alpha = 0.73; higher scores indicate more PA promoting practices). Teacher-level factors included gender, race, self-reported height/weight, years teaching, and education. School-level factors included school type, free-and-reduced-price meal eligibility, student racial/ethnic composition, and urbanicity. Analyses included multilevel regression models, accounting for clustering within schools and adjusting for demographic covariates and school district.

RESULTS

Teachers were 91% female, 63% elementary, 60% white, mean age 43.2 years (SD = 11.3), and 41% obese). Teachers wore accelerometers an average of 5.8 days, spent 399.6 min in LPA (SD = 85.0) per day, 24.1 min in MVPA (SD = 14.4) per day, and the mean teacher PA practices sum score was 22.4 (SD = 5.0). Every 15-min increase in MVPA was related to an increase in teacher PA practices sum score (coeff =1.07; SE = 0.28; p < 0.001). Female gender (versus males; coeff = - 1.95; SE = 0.92, p = 0.034), an obese weight status (versus non-obese; coeff = - 1.38; SE = 0.54, p = 0.010), and teaching in a middle school (versus elementary; coeff = - 3.86; SE = 0.54, p < 0.001) were associated with lower teacher PA practices scores. LPA was not associated with teacher PA promoting practices.

CONCLUSIONS

Teachers with higher MVPA, but not higher LPA, and those without obesity were more likely to implement PA promoting practices that could positively impact their students' PA. Similar to prior studies, these practices were more commonly implemented in elementary schools and by male teachers. Future studies in schools should explore whether improvement of teacher health behaviors subsequently impacts student health behaviors.

TRIAL REGISTRATION

Clinical Trials, NCT03432715 ; Registered on 02/2/2018.

Diet quality of elementary and middle school teachers is associated with healthier nutrition-related classroom practices

Many schools have implemented policies and programs to address childhood obesity. However, few have evaluated obesity-related health behaviors among teachers, or how these behaviors may be associated with teachers' nutrition-related practices in the classroom setting. This cross-sectional study utilized data from teachers employed in 20 schools representing three public school districts in a mid-Atlantic state from 2017 to 2019 to examine associations between teachers' diet quality and their nutrition-related classroom practices (e.g. rewarding students with food; modeling healthy diet behaviors). Measures included: one 24-h dietary recall summarized via healthy eating index (HEI-2015; higher scores indicate better diet quality; Range: 0-100); demographics, self-reported height/weight (BMI; ≥25 kg/m2 = overweight/obese), and nutrition-related classroom practices (10 item survey; sum score range: 0-40; alpha = 0.65; higher score = more health-promoting practices). Associations between HEI and nutrition-related classroom practices were assessed in multilevel models, adjusting for covariates (gender, race/ethnicity, age, income, BMI, years teaching) and controlling for within-school effects. Of 331 teachers recruited, 116 (35.0%) completed both the optional dietary recall and incentivized survey (analytic sample: 89% female; 45% black; 79% overweight/obese; BMI = 30.5 ± 7.1; aged 41.1 ± 11.8 years). Means and standard deviations were calculated for HEI (52.2 ± 12.2) and nutrition-related classroom practices sum score (25.4 ± 5.9). For every one-unit increase in HEI, there was a 0.20 increase in nutrition-related classroom practices score (SE = 0.05; p < 0.001), which remained significant in the adjusted model. To better inform obesity prevention efforts, future studies should collect data among both students and teachers and explore the mechanisms through which teacher health behaviors may impact student health behaviors.

"Wellness Champions for Change," a multi-level intervention to improve school-level implementation of local wellness policies: Study protocol for a cluster randomized trial

Schools are a recommended place for childhood obesity prevention. Local Wellness Policies (LWPs) establish guidelines for schools to provide opportunities for students to access nutritious foods and be physically active. Little is known about the impact of LWPs, when implemented, on students' behavior and body mass index (BMI). The Wellness Champions for Change trial assesses the student-level impact of providing theory-based training and technical assistance to help schools implement LWPs. This 3-arm, cluster randomized controlled trial will take place in 30 low- or middle-income schools (15 elementary and 15 middle) in five Maryland school districts. Ten schools will receive both Wellness Champions for Change (WCC), which involves training teacher-led wellness teams, and Wellness Champions for Change-Student (WCC-S), which engages students as wellness team members. Ten schools will receive WCC only, and ten control schools will receive a delayed intervention. The RE-AIM framework will guide evaluation. Student Effectiveness measures will include BMI z-scores, self-reported diet patterns, and objectively-measured physical activity. The sample size (1080 students across 30 schools, followed for 2.5 years) will enable power (>0.8) to detect BMI z-score differences. A three-level linear mixed model that accounts for clustering will be used to assess Effectiveness. A mixed methods approach will assess school- and district-level Reach, Adoption, and Implementation. If effective, this approach will represent a sustainable, multi-level, school-based strategy to prevent childhood obesity. The evaluation framework will allow for the description of factors necessary to broadly disseminate this approach for obesity prevention on a large scale.