Feasibility of Good Boost+ for Adults Awaiting Total Knee Replacement

Summary

The goal of this randomised controlled feasibility trial is to find out whether it is possible to run a larger study of the Good Boost+ community based rehabilitation programme for people waiting for a primary total knee replacement.

The study will look at how many people are willing to take part, whether they stay in the study, and whether they can follow the Good Boost+ programme as planned. It will also explore how acceptable the programme is to patients, NHS staff and leisure centre staff, and which outcome measures are most useful for a future full scale trial. The study will also look at what helps or hinders delivery of the programme in real world NHS and community settings.

The main questions it aims to answer are:

* How many people waiting for knee replacement surgery are willing to take part in the study
* Whether participants can continue with the Good Boost+ programme as planned over the study period
* Which outcome measures best capture any potential benefits of the programme
* How acceptable the programme is to patients, NHS and leisure centre staff
* What helps or makes it difficult to deliver the programme in practice.

Participants will be randomly assigned to one of two groups.

* Usual NHS care or
* Usual NHS care plus the Good Boost+ programme

Participants in the Good Boost+ programme will take part in six weekly group water based exercise sessions held in local swimming pools, as well as land based exercise sessions that can be done individually or by joining a virtual group. The exercise sessions are delivered through Good Boost's digital technology, using small waterproof tablet computers at swimming pools, and smartphones or computers for land-based sessions. Physiotherapy staff will provide guidance throughout, and volunteers will offer refreshments after pool sessions to support social connection.

All participants, including those receiving usual NHS care only, will be asked to complete an exercise diary, rate their knee pain each week, and complete short questionnaires at 6 and 10 weeks after joining the study.

Conditions

• Osteoarthritis (Knee)
• Arthroplasties, Knee Replacement

Interventions

BEHAVIORAL

Good Boost+

Good Boost+ is a six week personalised exercise and peer support community based rehabilitation programme, combining water based group exercise and land based home exercise. Participants attend one group aquatic exercise session per week at a local leisure centre, delivered using the Good Boost digital application on a waterproof tablet computer. Participants also complete three land based exercise sessions per week at home or in another suitable space, accessed via the Good Boost Move Together app on a smartphone or tablet computer. An initial assessment and goal setting session is completed with an NHS physiotherapist. Participants receive weekly one to one remote support from a physiotherapist throughout the programme. Informal peer support is encouraged through refreshments provided after pool based sessions.

OTHER

Usual NHS Care

Standard NHS pre operative care for individuals awaiting primary total knee replacement, delivered according to local NHS practice. No additional structured exercise or prehabilitation components are provided

Sponsors & Collaborators

• King's College London

  collaborator OTHER

• University of Leicester

  collaborator OTHER

• University of Leeds

  collaborator OTHER

• National Institute of Health and Care Research, United Kingdom

  collaborator UNKNOWN

• Imperial College London

  collaborator OTHER

• King's College Hospital NHS Trust

  lead OTHER

Study Design

Allocation

RANDOMIZED

Purpose

SUPPORTIVE_CARE

Masking

SINGLE

Model

PARALLEL

Eligibility

Min Age

18 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2026-06-30

Primary Completion

2026-11-30

Completion

2028-02-29

Countries

• United Kingdom

Study Locations