The SPACES feasibility trial: A co-produced physical activity intervention for people with severe mental illness

Background People with severe mental illness (SMI) experience a lower life expectancy compared to the general population. Taking part in regular physical activity can decrease the risk of physical health conditions (e.g. cardiovascular disease). People with SMI are less physically active than those without SMI. This is due to a variety of factors. Currently, physical activity interventions are not a part of standard care for people with SMI. Interventions that have been examined have lacked lived-experience input and produced limited engagement. An intervention has been co-produced to support people with SMI to increase their levels of physical activity. Methods The feasibility of delivering the Supporting Physical Activity through Coproduction in People with Severe Mental Illness (SPACES) intervention was evaluated in a two-armed randomised feasibility study. The recruitment and follow up processes, and the acceptability and suitability of the intervention were assessed. Physical activity levels were measured using an accelerometer. Progression to a definitive study was evaluated in accordance with set a priori criteria. Results In total 73 people consented and 71 people were randomised across 6 National Health Service (NHS) sites. Thirty-five were allocated to the control and 36 to the intervention. Nine people formally withdrew from the study; 8 from the control and 1 from the intervention. Overall follow-up rates of 87% and 76% were observed at the 3- and 6-month follow-ups respectively. The group intervention was delivered by NHS staff at all six sites. Conclusion The SPACES feasibility study met the pre-determined progression criteria to a definitive randomised controlled trial.