The association between neighbourhood walkability and after-school physical activity in Australian schoolchildren.

INTRODUCTION: Physical inactivity is a risk factor for many noncommunicable diseases. As reported by the World Health Organisation, 81% of children worldwide are physically inactive. Environmental factors, such as neighbourhood walkability, can shape people's physical activity (PA) behaviour. This study explored the association between neighbourhood walkability and after-school PA among Australian schoolchildren. METHODS: The Department for Education and Child Development (DECD) distributed the survey to 189 schools across South Australia to assess the health and well-being of schoolchildren aged between 8 and 14 years. Neighbourhood was defined as an area corresponding to a four digit postcode, and its walkability was measured using Walk Score® . The association between neighbourhood walkability and after-school PA was analysed using multinomial logistic regression adjusted for age, gender, SEIFA score, number of days of TV watching, number of times of eating junk food, neighbourhood safety and children's weight status. RESULTS: Children residing in highly walkable areas (walker's paradise) compared to car-dependent areas had higher odds (OR(95%CI)) of engaging in after-school PA three (1.216 (1.029, 1.436), P = .021), four (1.287 (1.064, 1.557), P = .009) and five times a week (1.230 (1.030, 1.133), P = .022) compared to children never participating in PA. CONCLUSION: Living in highly walkable areas (walker's paradise), compared to living in car-dependent areas was associated with higher levels of after-school PA. So what? Creating walkable neighbourhoods with greater access to amenities, services and public transportation may help increase after-school PA among schoolchildren.

Gender differences in barriers to participation in after-school physical activities and related factors in Australian schoolchildren: A cross-sectional study.

INTRODUCTION: This study investigated the gender differences in reported barriers to participation in after-school physical activity (PA) and related health and socio-behavioural factors in Australian schoolchildren. METHODS: 5001 students aged 10 to 16 years completed the health and well-being survey in 2014 indicating that they would like to participate in after-school PA. Negative binomial regression models, stratified by gender, tested the relationship of age, reported health, junk food, participation in leisure PA, TV watching, weight status and socio-economic index for area score (related factors) with the total number of barriers. RESULTS: Girls were more likely to report a greater number of barriers to participation in after-school PA than boys (P < .05). Older age was associated with a higher number of barriers in girls (B(95% CI) = 1.061 (1.032, 1.090)) but not in boys. In both boys and girls, being overweight (boys: very overweight (1.367 (1.081, 1.730)); girls: slightly overweight (1.186 (1.100, 1.278)) or very overweight (1.414 (1.197, 1.667))), compared to students who reported "being about the right weight," was associated with a greater number of barriers. Schoolchildren who reported less than excellent health status perceived a greater number of barriers to after-school PA (girls: good (1.141 (1.060, 1.228)), fair (1.189 (1.070, 1.321)) and poor health (1.329 (1.093, 1.614)); boys: good health (1.166 (1.0728, 1.267))). CONCLUSIONS: There are gender differences in barriers to participation in after-school PA; these should be taken into account when developing programs to increase schoolchildren's after-school PA. SO WHAT: The prevalence of physical inactivity in Australian adolescents is staggering. We observed that girls reported a greater number of barriers to participation in after-school PA than boys; and being overweight and reporting poorer overall health were associated with a greater number of barriers. Affordable, gender- and age-specific after-school PA programs suitable for schoolchildren of all body shapes and sizes and all abilities are needed.