Underreporting of implementation strategies and barriers in physical activity interventions for young people at risk of problematic substance use: a brief report

Several studies have assessed whether physical activity interventions can reduce substance use in young people at risk of problematic substance use. This report identifies and describes the reporting of implementation characteristics within published studies of physical activity interventions for young people at risk of problematic substance use and provides recommendations for future reporting. Reported implementation strategies (including intervention manualization), barriers, implementation fidelity, and personnel acceptance were extracted from studies of physical activity interventions for young people aged 12–25 years at risk of problematic substance use that were included in a previous systematic review of intervention efficacy. Implementation strategies were reported in less than half of the included studies (42.9