The impact of the Luton social prescribing programme on energy expenditure: a quantitative before-and-after study

OBJECTIVES: The objective of this study was to assess the change in energy expenditure levels of service users after participation in the Luton social prescribing programme. DESIGN: Uncontrolled before-and-after study. SETTING: This study was set in the East of England (Luton). PARTICIPANTS: Service users with complete covariate information and baseline measurements (n=146) were included in the analysis. INTERVENTION: Social prescribing, which is an initiative that aims to link patients in primary care with sources of support within the community sector to improve their health, well-being and care experience. Service users were referred to 12 sessions (free of charge), usually provided by third sector organisations. PRIMARY OUTCOME MEASURE: Energy expenditure measured as metabolic equivalent (MET) minutes per week. RESULTS: Using a Bayesian zero-inflated negative binomial model to account for a large number of observed zeros in the data, 95% posterior intervals show that energy expenditure from all levels of physical activities increased post intervention (walking 41.7% (40.31%, 43.11%); moderate 5.0% (2.94%, 7.09%); vigorous 107.3% (98.19%, 116.20%) and total 56.3% (54.77%, 57.69%)). The probability of engaging in physical activity post intervention increased, in three of four MET physical activity levels, for those individuals who were inactive at the start of the programme. Age has a negative effect on energy expenditure from any physical activity level. Similarly, working status has a negative effect on energy expenditure in all but one MET physical activity level. No consistent pattern was observed across physical activity levels in the association between gender and energy expenditure. CONCLUSION: This study shows that social prescribing may have the potential to increase the physical activity levels of service users and promote the uptake of physical activity in inactive patient groups. Results of this study can inform future research in the field, which could be of use for commissioners and policy makers.