GoActive Technical summary
GoActive was developed to answer a clear need for effective health promotion programmes to increase physical activity levels in adolescents. A 10-minute increase in moderate-to-vigorous activity was associated with a smaller waist circumference and lower fasting insulin among young people in a large international study. However, over 10 minutes/day of PA every year is replaced by sedentary time between 9/10 years and13/14 years-of-age. Insufficient activity is a risk factor for obesity and related metabolic disorders in youth. Moreover, low PA in adolescence is likely to progress to adulthood inactivity, which is linked to increased risk of many diseases including type 2 diabetes, cancer and also premature mortality. Given that pubertal, brain and social development during adolescence leads to new capacity for health behaviours, increasing the likelihood of long term change, adolescence is a critical period to increase PA, with potential for long term public health benefits.
- Aims of the study
- Chief/Principal investigators
- Unit role
- Partners and stakeholders
- Data sharing
The specific aims of GoActive are:
- To assess the post-intervention and 10 month effectiveness of the GoActive programme to increase average (including weekday and weekend) daily objectively measured MVPA among 13-14 year old adoelscents.
- To assess the effect of GoActive on the following secondary outcomes: (i) Objectively assessed activity intensities during school time, weekday evenings and weekends (sedentary, light, moderate and vigorous activity); including change in intensity distribution (ii) Student- reported physical activity participation, self-efficacy, peer support, group cohesion, self-esteem, friendship quality, well-being and school and individual attendance and academic performance (iii) Body composition
- To assess short term (within-trial) and potential long term cost-effectiveness of the programme
- To assess programme acceptability, facilitators, barriers, uptake, maintenance and dose
- To investigate potential moderation of intervention effects by sex, socio-economic status, ethnicity, baseline activity level and weight status, and to explore potential mechanisms effect by proposed mediators using a mixed-methods approach
A two-arm school-based cluster randomised controlled trial primarily assessing whether the GoActive intervention increases daily MVPA in 13-14 year olds at 10 month follow up. After baseline measurements, schools will be randomly allocated to deliver the GoActive intervention to the whole of Year 9, or to a no-treatment control group. This is because we will endeavour to follow up these adolescents at a later date and therefore, we do not want to compromise the potential of long term follow-up in this sample. This protocol will be conducted and reported in accordance with SPIRIT (Standard Protocol Items: Recommendations for Interventional Trials) guidance. Participant data collection will occur at baseline, 6 weeks, 14-16 weeks and 10 months. Cost effectiveness will be assessed and a mixed-methods process evaluation will explore intervention acceptability, barriers and facilitators to participation and maintenance, ideas for improvement and potential mechanisms of effect.
The primary outcome is change in daily accelerometer-assessed moderate-to-vigorous PA.
Secondary outcomes include:
- Accelerometer-assessed sedentary, light, overall physical activity during school time, weekday evenings, weekends
- Self-reported physical activity, self-efficacy, self-esteem, peer support, friendship quality, diet quality, sleep, mood, school-reported absence and academic performance, body fat%, BMI
- Within-trial, long-term cost-effectiveness and cost-utility analyses
- Mixed methods process evaluation assessing a) programme acceptability, uptake, maintenance, and dose; and b) putative moderators/mediators
In addition, within-trial cost-effectiveness will be expressed as incremental costs per increment change in physical activity (METs). Long term cost-effectiveness will assess whether the intervention is likely to increase length and/or quality of life, and at what cost. Focus groups and interviews (mentors/teachers/students) will also explore programme acceptability, barriers, facilitators, potential mechanisms of effect and population group differences.
Dr Kirsten Corder – University of Cambridge
Dr Esther van Sluijs – University of Cambridge
Dr Ed Wilson – University of Cambridge
Dr Anna Vignoles – University of Cambridge
Dr Caroline Croxson – University of Oxford
Dr Paul Wilkinson – University of Cambridge and Cambridgeshire and Peterborough NHS Foundation Trust
Dr Stephanie Jong – University of Cambridge
Dr Helen Brown – The Behavioural Insights Team (previously University of Cambridge)
Finished data collection- processing and analysing data ready for end of trial reports.
Unit led study with responsibility for data.
The study is sponsored by the University of Cambridge.
The pilot study was funded by the University of Cambridge (UK) – UK CRC Centre for Diet and Activity Research (CEDAR). The cluster randomised controlled trial is funded by National Institute of Health Research Public Health Research grant (NIHR-PHR) 13/90/18
Please see our Data Sharing web portal at: http://epi-meta.medschl.cam.ac.uk.