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Hayley Karen Christian Lombardi BSc (1st Class Hons), PhD (Distinction) W.Aust. BHSc (Hons), PhD Head, Child Physical Activity, Health and

The BEACHES project aims to provide high quality evidence of aspects of the built environment which can be modified to reduce the negative impact on children’s physical activity, eating behaviours and weight status.

In Western Australia (WA) social activities occur in aquatic environments where alcohol promotion and consumption may be prevalent creating an aquatic alcogenic environment. This poses a challenge for drowning prevention efforts.

Childhood is a critical period for the development of movement behaviours such as physical activity, sleep and sedentary behaviour. The PLAYCE Cohort was established to investigate how movement behaviours change over early to middle childhood, across key behaviour settings and relationships with health and development. An overview of the PLAYCE cohort, summary of key findings to date, and future research opportunities are presented.

High levels of sedentary behaviour are associated with poor child health outcomes such as obesity. Early childhood education and care (ECEC) services are a key intervention setting. Most ECEC policy-based interventions focus on children's nutrition and physical activity with few aimed at children's sedentary behaviour.

This study investigated adherence to Indonesia's Dietary Guidelines (IDG) among lactating women, examining related factors and association with nutrient intake adequacy, maternal and infant biomarkers, body mass index, and growth. Participants were lactating women (n = 220) from urban and rural West Java, Indonesia. Dietary intake (via 3-day weighed food records), anthropometry and blood samples were assessed. Adherence was evaluated using a scoring system tailored for IDG and adapted from the Healthy Eating Index to assess intake of food groups, sugar, salt, fat, water, coffee, and breakfast habits.

Overweight and obesity in children continues to increase. Yet, the role of active transport, namely walking, in mitigating these trends remains unclear. This study examined the cross-sectional association between walkability and children's Body Mass Index (BMI) and how this varies by socio-economic and lifestyle characteristics.

Children's physical activity and screen time behaviours impact their physical health and well-being. In Australia, less than half of children meet daily physical activity recommendations and only one-third meet daily screen time recommendations.

Child poverty remains a major global concern and a child's experience of deprivation is heavily shaped by where they live and the stability of their local neighbourhood. This study examines frequencies and patterns of residential mobility in children and young people at a population level using novel geospatial techniques to assess how often their physical environment changes and to identify geographical variations in social mobility.

We know relatively little about the role the neighbourhood built environment plays in promoting young children's physical activity, particularly its longitudinal effect either through repeated exposure to the same environment or through change in exposure by moving from one neighbourhood to another.