Feasibility evaluation and long-term follow up of a family-based behaviour change intervention for overweight children (GOALS)

Childhood obesity is the most serious public health challenge of the 21st century. Whilst evidence supports a family-based lifestyle approach to childhood obesity treatment, research is needed to understand how interventions work and how practitioners can effectively support families to sustain behavioural changes in the long-term. This thesis evaluated the feasibility of a family-based behaviour change intervention for overweight children (GOALS) and explored the psychosocial process of long-term behavioural change in families with overweight children. Study 1 measured the impact of GOALS on the body composition, lifestyle behaviours and self-perceptions of children and parents who completed the intervention. A complete case analysis (n=70) showed a significant 6-month reduction in child BMI SOS (-0.07, p<0.001) that was maintained at 12-month follow up. There was a significant year-on-year increase in the proportion of children reducing BMI SOS (42.9% year 1, 62.5% year 2, 80% year 3, p<0.05) and a strong positive relationship between parent and child BMI change (r = .479, p