Oral Presentation Australian and New Zealand Obesity Society Annual Scientific Conference 2026

Change in 24-hour movement behaviours in children aged 4-16 after participation in a multicomponent, community-based, family focused Healthy Lifestyle Program pilot in Perth, Western Australia  (144283)

Katie M Iwanowski 1 2 3 , Stephen Paull 1 2 3 , Stevie Raymond 2 , Chelsea Sharp 2 , Bonnie Furzer 4 , Eryn L Kemp 2 , Natasha Bear 5 , Stephanie Smith 1 2 3 , Yvonne C Anderson 1 2 3
  1. Curtin University, Bentley, WA, Australia
  2. Child and Adolescent Community Health, Child and Adolescent Health Service, Perth, WA, Australia , Perth, WA, Australia
  3. The Kids Research Institute Australia, Nedlands, WA, Australia
  4. School of Human Sciences, University of Western Australia, Nedlands, WA, Australia
  5. Institute for Health Research, Notre Dame University, Perth, WA, Australia

Background: Childhood obesity presents a growing health challenge globally, predicted to affect over 50% of children by 2050.1 In Australia, 25% of children are living with overweight or obesity before they commence school.2 Low levels of physical activity, poor sleep and excessive screen-use contribute to obesity in children and young people.3 Multicomponent behavioral family-based obesity treatments are recommended for children living with obesity.4 However, their impact on 24-hour movement behaviours remain inconclusive.3 This study examined the effects of a multicomponent, community-based, family-centred Healthy Lifestyle Program pilot on 24-hour movement behaviors (physical activity, screen time, and sleep) delivered in Perth, Western Australia.5

Methods: A hybrid type-2 effectiveness intervention trial design is being utilised to examine within-subject change in physical activity behaviours, motivation and self-efficacy, sleep and screen-use from baseline at follow-up (>5 to <10 months from baseline) and program completion (>10 months to <15 months from baseline). The intervention consisted of Healthy Lifestyle Checks including individualised goal-setting and 20 hours of nutrition, physical activity and behavior change group sessions delivered to children and their caregivers by a multidisciplinary team. Physical activity and attitudes, screen-use and sleep behaviours were collected using purpose built questionnaires, including a physical activity questionnaire modified from the Children’s Physical Activity Questionnaire (CPAQ).

Expected results: It is expected that the intervention will exert and effect on 24-hour movement behaviours, including an increase in moderate-vigorous physical activity, improvement in physical activity motivation and self-efficacy, increase in sleep duration and a reduction in screen-use post-intervention.

Conclusion: This study will contribute to the evidence base regarding the effects of child- and family-centred healthy lifestyle interventions on 24-hour movement behaviours. It will provide insight into the most impactful aspects of such interventions in reducing childhood obesity.

Keywords: Healthy Lifestyle program, childhood obesity, 24 hour movement behaviours