Facebook, the most widely used social media platform, has been adopted by public health organisations for health promotion and behaviour change campaigns and activities. However, limited information is available on the most effective and efficient use of Facebook for this purpose. This study sought to identify the features of Facebook posts that are associated with higher user engagement on Australian public health organisations’ Facebook pages. We selected 20 eligible pages through a systematic search and coded 360-days of posts for each page. Posts were coded by: post type (e.g., photo, text only etc.), communication technique employed (e.g. testimonial, informative etc.) and use of marketing elements (e.g., branding, use of mascots). A series of negative binomial regressions were used to assess associations between post characteristics and user engagement as measured by the number of likes, shares and comments. Our results showed that video posts attracted the greatest amount of user engagement, although an analysis of a subset of the data suggested this may be a reflection of the Facebook algorithm, which governs what is and is not shown in user newsfeeds and appear to preference videos over other post types. Posts that featured a positive emotional appeal or provided factual information attracted higher levels of user engagement, while conventional marketing elements, such as sponsorships and the use of persons of authority, generally discouraged user engagement, with the exception of posts that included a celebrity or sportsperson. Our results give insight into post content that maximises user engagement and begins to fill the knowledge gap on effective use of Facebook by public health organisations.

Introduction: Physical activity can improve academic performance; however, much less is known about the specific association between sport participation and academic performance, and this evidence has not been synthesized. Our aim was to systematically review and combine via meta-analyses evidence of the association between sport participation and academic performance in children and adolescents. Methods: We conducted searches of five electronic databases using sport and academic performance related terms. We combined evidence from eligible studies using a structural equation modeling approach to multilevel meta-analysis. Results: From 115 eligible studies, most of which had a high risk of bias (k = 87), we meta-analyzed 298 effect sizes. Overall, sport participation had a small positive effect on academic performance (d = 0.26, 95% confidence interval = 0.09, 0.42). Moderator analyses indicated that sports participation was most beneficial for academic performance when it was at a moderate dose (i.e., 1–2 h·wk⁻¹), compared with no sport or a high dose of sport (3+ h·wk⁻¹). Conclusions: Sports participation during school hours was more beneficial for academic performance compared with sport participation outside school hours. Based on mostly low-quality studies, we found some evidence that sport could positively affect academic performance in children and adolescents. It appears that sport participation of a moderate dose and at school could be used to promote academic performance. However, if this field were to inform policy, high-quality studies are needed that provide insight into the effect of dose and sport characteristics on academic performance.

The aim of this study was to evaluate the effect of an activity-based work (ABW) office environment on physical activity and sedentary behavior, work ability, and musculoskeletal discomfort. Eighty-eight office workers trialed ABW for 4 weeks. Accelerometer and self-reported outcomes were measured at baseline, end-intervention, and follow-up. Data were analyzed using linear mixed models. Accelerometry measured sedentary time; sedentary breaks and step count did not significantly change from baseline to end-intervention (P = 0.13, 0.09, 0.18, respectively). Self-reported sitting-time was 14% lower, with standing-time and walking 11% and 3% higher in ABW than baseline (P < 0.01 for all). Low back pain was lower in ABW than baseline (odds ratio 2.0, 95% confidence interval 1.1 to 3.7). Work ability reduced from 8.4 to 7.8 points (P < 0.01) at follow-up. ABW environment appears to reduce self-reported sedentary behavior and low back pain and increase standing time.

Few studies have reported energy balance-related behavior (EBRB) change for peer leaders delivering health promotion programs to younger students in secondary schools. Our study assessed the impact of the Students As LifeStyle Activists (SALSA) program on SALSA peer leaders’ EBRBs, and their intentions regarding these behaviors. We used a pre–post study design to assess changes in EBRBs and intentions of Year 10 secondary school students (15–16 year olds) who volunteered to be peer leaders to deliver the SALSA program to Year 8 students (13–14 year olds). This research is part of a larger study conducted during 2014 and 2015 in 23 secondary schools in Sydney, Australia. We used an online questionnaire before and after program participation to assess Year 10 peer leaders’ fruit and vegetable intake, daily breakfast eating, sugar sweetened beverage (SSB) intake, moderate-to-vigorous physical activity (MVPA) participation and school-day recreational screen time behaviors and intentions regarding these EBRBs. Generalized estimating equations with a robust variance structure and exchangeable correlation structure were used to estimate the individual-level summary statistics and their 95% CIs, adjusted for clustering. We further assessed the effect of covariates on EBRB changes. There were significant increases in the proportion of Year 10 peer leaders (n = 415) who reported eating ≥2 serves fruit/day fruit from 54 to 63% (P < 0.01); eating ≥5 serves vegetables/day from 8 to 12% (P < 0.01); and drinking <1 cup/day of SSBs from 56 to 62% (P < 0.01). Change in ≥60 min MVPA participation/day depended on gender (P < 0.01): Boys increased 14% while girls decreased −2%. Changes in eating breakfast daily also depended on gender (P < 0.004): Boys increased 13% while girls decreased −0.4%. The change in peer leaders recreational screen time differed by socio-economic status (P < 0.05): above average communities decreased by −2.9% while below average communities increased 6.0%. Significant shifts were seen in peer leaders’ intentions, except MVPA which remained stable. The SALSA program had a positive impact on peer leaders’ EBRBs, with gender and socio-economic status moderating some outcomes. ACTRN12617000712303 retrospectively registered.

Background: There is an urgent need for scaled-up effective interventions which overcome barriers to health-enhancing physical activity for children and adolescents. In New South Wales (NSW), Australia, the state government implemented a universal voucher program, ‘Active Kids’ to support the cost of structured physical activity registration for school-enrolled children aged 4.5–18 years old. The objective of this study was to understand the effects a financial incentive intervention delivered in a real-world setting has on children and adolescent’s physical activity participation.Method: In 2018, all children and adolescents registered for an Active Kids voucher provided sociodemographic characteristics, physical activity and research consent. This prospective cohort study used an online survey with validated items to measure physical activity and other personal and social factors in children and adolescents who used an Active Kids voucher. Generalized linear mixed models were used to examine changes from registration to after voucher use at ≤8 weeks, 9–26 weeks and ≥ 6 months.Results: Study participants reported increasing their days achieving physical activity guidelines from 4.0 days per week (95%CI 3.8, 4.2) at registration (n = 37,626 children) to 4.9 days per week (95%CI 4.7, 5.1) after 6 months (n = 14,118 children). Increased physical activity was observed for all sociodemographic population groups. The voucher-specific activity contributed 42.4% (95%CI 39.3, 45.5) to the total time children participated in structured physical activities outside of school. Children and adolescents who increased to, or maintained, high levels of activity were socially supported to be active, had active parent/caregivers, had better concentration and were overall happier than their low-active counterparts.Conclusion: The Active Kids program significantly increased children’s physical activity levels and these increases continued over a six-month period. The Active Kids voucher program shows promise as a scaled-up intervention to increase children and adolescents’ physical activity participation.Trial registration: Australian New Zealand Clinical Trial RegistryACTRN12618000897268, approved May 29th, 2018 - Retrospectively registered.

Background: Participation in organised sport and physical activity contributes to health-enhancing levels of leisure time physical activity. In Australia, 58% of children aged 0–14 years participated at least once a week in October 2015 – December 2017. To overcome the frequently cited cost barrier, sports voucher incentives have been widely implemented across Australia. Method: The financial value of jurisdictional vouchers and the National median financial value were used to calculate the proportion of total annual expenditure on children’s participation in sport supported by sports vouchers. Participation rates using AusPlay data were estimated by age, sex and socio-economic index (SEIFA) at state and national level for children aged 0–14 years. Results: Five States and Territories implemented sports vouchers from 2011 to 2018, with a median value of AU$150. Nationally, median annual expenditure for children’s sport participation was AU$447 (IQR $194.2–936), with 27% reported expenditure supported by a sports voucher. The proportion of financial support from sports vouchers increased considerably with social disadvantage, rising to over 60% of total expenditure in the most disadvantaged populations. Conclusions: Socio-economic status was associated with sports-related expenditure and sports participation amongst children. Sport vouchers should target children in the most disadvantaged areas to promote participation in organised sport and physical activity.