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. 2018 Dec 14;8(12):e021051.
doi: 10.1136/bmjopen-2017-021051.

Effect of a combined programme of dietary restriction and physical activity on the physical function and body composition of obese middle-aged and older adults with knee OA (DRPA): protocol for a feasibility study

Asma S Alrushud  1   2 , Alison B Rushton  1   3 , Gurjit Bhogal  4 , Fraser Pressdee  4 , Carolyn A Greig  1   3   5
Affiliations

Effect of a combined programme of dietary restriction and physical activity on the physical function and body composition of obese middle-aged and older adults with knee OA (DRPA): protocol for a feasibility study

Asma S Alrushud et al. BMJ Open. .

Abstract

Introduction: Knee osteoarthritis (OA) is the most common chronic illness among older adults. Up to the submission date of this protocol, there are no published UK studies reporting the efficacy of a combined intervention programme of physical activity and dietary restriction on the musculoskeletal function of obese older adults with knee OA in spite of the clinical recommendation for exercise and diet for people with knee OA. The aim of this study is to assess the feasibility and acceptability of a combined dietary restriction and physical activity intervention programme and collect preliminary data.

Method and analysis: This single-arm intervention study is scheduled to begin in September 2017 and conclude in November 2018. It will take place at the Royal Orthopaedic Hospital (ROH), Birmingham and the School of Sport, Exercise and Rehabilitation Sciences (SportExR), University of Birmingham. Participants will receive a physiotherapy usual care programme for knee OA for 1 month, after which they will continue to exercise in their local gym/leisure facility for 3 months. Participants will also follow dietary restriction throughout the 4-month intervention. Mixed analysis techniques will be used to analyse the quantitative and qualitative outcome measures.

Ethics and dissemination: It is approved by ROH R&D Foundation Trust and the Health Research Authority. The Consort Guidelines and checklist will be reviewed prior to generating any publications for the trial to ensure they meet the standards required for submission to high-quality peer-reviewed journals.

Trial registration number: ISRCTN12906938.

Keywords: diet; exercise; feasibility trials; knee osteoarthritis; obesity; older adults; usual care.

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Conflict of interest statement

Competing interests: None declared.

Figures

Figure 1
Figure 1
Flowchart of Dietary Restriction and Physical Activity (DRPA) trial flow diagram. BMI, body mass index; CI, chief investigator; PT, physiotherapy; ROM, range of motion; ROH, Royal Orthopaedic Hospital; SportExR, School of Sport, Exercise and Rehabilitation Sciences; WOMAC, Western Ontario and McMaster Universities Osteoarthritis Index.
See this image and copyright information in PMC

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