Summary: In a process evaluation within a feasibility trial, a structured 4-day training programme prepared healthcare professionals to deliver a group weight-management intervention for severe obesity, achieving moderate delivery fidelity and facilitator confidence while revealing a need for more flexible, self-directed training.
PICO Summary
| Element | Detail |
|---|---|
| Population | 5 healthcare professional facilitators from 3 UK specialist weight-management services delivering group care to people with severe obesity; mixed-methods process evaluation of the PROGROUP feasibility trial, UK. |
| Intervention | A 4-day remote training programme covering communication and group-facilitation skills plus physical-activity and dietary education, grounded in psychological theory. |
| Comparison | None formal; this is a single-arm process evaluation informing optimisation of the training rather than a controlled comparison. |
| Outcome | Intervention content was largely delivered as intended (average fidelity 68% across cohorts), with facilitators confident in the educational components but variable in flexible delivery. Facilitators found attending all training days difficult and preferred more self-directed learning, so the programme was revised to add self-directed content and focus on delivery principles. |
Expert Commentary
This is an implementation and training study rather than a clinical-outcomes trial, and it should be read as such: it reports how well clinicians were prepared to deliver a group obesity programme and how the training was improved, not whether patients lost weight or improved health. Read that way it is genuinely useful, because the success of group-based weight management hinges on faithful, skilled facilitation, and the honest documentation of moderate fidelity, the gap between confident educational delivery and weaker flexible facilitation, and practical barriers to attending intensive training offers transferable lessons for any group-based service. The move toward self-directed learning is a sensible, evidence-informed response. The limitations are inherent to scope: only five facilitators, no control condition so the framing is descriptive rather than comparative, and no patient outcomes, so this cannot speak to effectiveness of the intervention itself. Can I use this with my patients? Not directly, since it informs service design rather than bedside care. For colleagues building or running group programmes, it is a valuable reminder to invest in facilitation skills and fidelity support and to make training flexible, while the question of whether the underlying intervention helps patients awaits the main trial.
References
Moghadam S, Tarrant M, Hawkins L, et al. Training healthcare professionals to deliver a group-based intervention for people living with severe obesity: lessons from the PROGROUP feasibility trial. J Hum Nutr Diet. 2026;39(1):e70204. doi:10.1111/jhn.70204