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CLINICAL TRIAL article

Front. Psychiatry

Sec. Forensic Psychiatry

Volume 16 - 2025 | doi: 10.3389/fpsyt.2025.1558602

A feasibility study of a physical ac4vity interven4on for people with severe mental illness in medium secure psychiatric services in the United Kingdom

Provisionally accepted
Gloria  roden-luiGloria roden-lui1Guy  FaulknerGuy Faulkner2Mike  LucockMike Lucock3Simon  GibbonSimon Gibbon4Catherine  HewittCatherine Hewitt5Elizabeth  HughesElizabeth Hughes6Wajid  KhanWajid Khan7Kiara  LewisKiara Lewis8Bal  SinghBal Singh7Phil  WaltersPhil Walters7Judith  WatsonJudith Watson5Tammi  WalkerTammi Walker1*
  • 1Durham University, Durham, United Kingdom
  • 2University of British Columbia, Vancouver, British Columbia, Canada
  • 3University of Huddersfield, Huddersfield, West Yorkshire, United Kingdom
  • 4Nottinghamshire Healthcare NHS Foundation Trust, Nottingham, United Kingdom
  • 5University of York, York, United Kingdom
  • 6GCUClinic, Glasgow Caledonian University, Glasgow, United Kingdom
  • 7South West Yorkshire Partnership NHS Foundation Trust, Yorkshire, United Kingdom
  • 8Birmingham City University, Birmingham, United Kingdom

The final, formatted version of the article will be published soon.

In the UK, there are approximately 3500 individuals detained in medium secure service. Service users in such se_ngs have complex and severe mental illness (SMI), oien with co-morbid physical health problems, shorter life expectancy and low levels of physical acZvity (PA). However, there are few studies about PA intervenZons for medium secure service users in the United Kingdom. Therefore, the aim of the study was to co-produce, with medium secure service users and staff, the content and delivery of an intervenZon to increase PA. Methods A feasibility and acceptability study were conducted to test the PA intervenZon using the Capability, Opportunity, MoZvaZon Behaviour Change Model (COM-B model) as the underpinning theoreZcal model. Both female and male service users, with personality disorder and/or mental illness, were recruited from two medium secure services in the UK. Outcome measures were collected at baseline, aier the intervenZon and at follow up (3-months aier intervenZon), and included PA levels, mental well-being, data on recruitment and retenZon and causes of drop out. Results A total of 33 parZcipants were recruited. Seven parZcipants withdrew during the intervenZon period and 26 parZcipants completed the PA intervenZon. During the follow up stage, three parZcipants withdrew. Following the intervenZon parZcipants increased PA and improved physical health and wellbeing. Overall, there was good retenZon for the PA intervenZon Conclusion RetenZon rates and completeness of data at both study sites indicate that it is feasible and acceptable to co-produce, deliver and maintain commitment to a PA intervenZon in such se_ngs for service users with SMI. A future pilot randomised controlled trial (RCT) will allow further understanding about the effecZveness of the PA intervenZon in medium secure psychiatric services.

Keywords: Physical AcZvity, severe mental illness, Co-producZon, IntervenZon Design, COM-B Model of Behaviour, secure psychiatric services, Feasibility and acceptability

Received: 10 Jan 2025; Accepted: 07 Jul 2025.

Copyright: © 2025 roden-lui, Faulkner, Lucock, Gibbon, Hewitt, Hughes, Khan, Lewis, Singh, Walters, Watson and Walker. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Tammi Walker, Durham University, Durham, United Kingdom

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