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Updated: Jun 8, 2025

Validation of a Psychosocial Intervention on Body Image in Older People: An Experimental Design
Published on: May 31, 2021
Three-year behavioural, health-related quality of life, and body mass index outcomes from the RESPOND randomized
Steven Allender1, Cadeyrn J Gaskin1, Denise Becker2
1Global Centre for Preventative Health and Nutrition (GLOBE), Institute for Health Transformation, Deakin University, Geelong, Australia.
Objectives:
Evaluate RESPOND, a community-based systems intervention to prevent childhood obesity and non-communicable diseases (NCD).
Study Design:
Cluster randomized trial of building community capacity to use systems science for child obesity and NCD prevention in 10 local government areas in northeast Victoria, Australia. Four-year stepped wedge trial, adapted due to COVID-19 restrictions METHODS: Cluster randomized trial of building community capacity to use systems science for child obesity and NCD prevention in 10 local government areas in northeast Victoria, Australia. Four-year stepped wedge trial, adapted due to COVID-19 restrictions. Data from 31 primary schools participating at both March to June 2019 (60 % school participation rate), and March to August 2022 (30 %) analysed using linear mixed models. Primary outcome was age-sex-adjusted body mass index z-scores (BMIz) calculated from measured height and weight (children in grades 2, 4 and 6 [aged 7-12 years]). Secondary outcomes were health-related quality of life (HRQoL) and self-reported health behaviours (grades 4 and 6).
Results:
Non-significant intervention effects were observed for BMIz (-0.10; 95 % CI: 0.30, 0.11), and percentage with overweight or obesity (-5.4 %; 95 % CI: 13.6 %, 2.7 %). HRQoL deteriorated between 2019 and 2022, except where intervention effects for HRQoL were observed in boys' psychosocial health summary score (7.4; 95% CI: 3.5, 11.2) and total scale score (9.9; 95% CI: 5.5, 14.2). There was an intervention effect for the proportion of boys consuming ≥5 glasses of water per day (15.2 %; 95% CI: 0.9-29.6).
Conclusion:
RESPOND protected overall and psychosocial health and had positive effects on BMIz.
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