Using SUpported Motivational InTerviewing (SUMIT) to increase physical activity for people with knee osteoarthritis: a pilot, feasibility randomised controlled trial

Emily Catherine Bell; Paul O'Halloran; Jason A Wallis; Kay M Crossley; Alison J Gibbs; A Lee; Sophie Jennings; Christian J Barton

doi:10.1136/bmjopen-2023-075014

Using SUpported Motivational InTerviewing (SUMIT) to increase physical activity for people with knee osteoarthritis: a pilot, feasibility randomised controlled trial

BMJ Open. 2023 Nov 21;13(11):e075014. doi: 10.1136/bmjopen-2023-075014.

Authors

Emily Catherine Bell^{1

2}, Paul O'Halloran³, Jason A Wallis^{4

2

5}, Kay M Crossley⁴, Alison J Gibbs⁴, A Lee⁶, Sophie Jennings², Christian J Barton⁴

Affiliations

¹ La Trobe Sport & Exercise Medicine Research Centre (LASEM), School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Victoria, Australia E.Bell@latrobe.edu.au.
² Department of Physiotherapy, Cabrini Health, Malvern, Victoria, Australia.
³ La Trobe University School of Psychology and Public Health, Bundoora, Victoria, Australia.
⁴ La Trobe Sport & Exercise Medicine Research Centre (LASEM), School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Victoria, Australia.
⁵ School of Public Health & Preventive Medicine, Monash University, Melbourne, Victoria, Australia.
⁶ Department of Physiotherapy, Monash University, Frankston, Victoria, Australia.

Abstract

Objective: The objective of this study was to determine the feasibility and effectiveness of using SUpported Motivational InTerviewing (SUMIT) to increase physical activity in people with knee osteoarthritis (KOA).

Design: Randomised controlled trial.

Setting: We recruited people who had completed Good Life with osteoArthritis Denmark (GLA:D) from private, public and community settings in Victoria, Australia.

Interventions: Participants were randomised participants to receive SUMIT or usual care. SUMIT comprised five motivational interviewing sessions targeting physical activity over 10 weeks, and access to a multimedia web-based platform.

Participants: Thirty-two participants were recruited (17 SUMIT, 15 control) including 22 females (69%).

Outcome measures: Feasibility outcomes included recruitment rate, adherence to motivational interviewing, ActivPAL wear and drop-out rate. Effect sizes (ESs) were calculated for daily steps, stepping time, time with cadence >100 steps per minute, time in bouts >1 min; 6 min walk distance, Knee Osteoarthritis Outcome Score (KOOS) subscales (pain, symptoms, function, sport and recreation, and quality of life (QoL)), Euroqual, systolic blood pressure, body mass index, waist circumference, 30 s chair stand test and walking speed during 40 m walk test.

Results: All feasibility criteria were achieved, with 32/63 eligible participants recruited over seven months; with all participants adhering to all motivational interviewing calls and achieving sufficient ActivPAL wear time, and only two drop-outs (6%).12/15 outcome measures showed at least a small effect (ES>0.2) favouring the SUMIT group, including daily time with cadence >100 steps per minute (ES=0.43). Two outcomes, walking speed (ES= 0.97) and KOOS QoL (ES=0.81), showed a large effect (ES>0.8).

Conclusion: SUMIT is feasible in people with knee osteoarthritis. Potential benefits included more time spent walking at moderate intensity, faster walking speeds and better QoL.

Trial registration number: ACTRN12621000267853.

Keywords: knee; physical therapy modalities; rehabilitation medicine.

Publication types

Randomized Controlled Trial
Research Support, Non-U.S. Gov't

MeSH terms

Exercise / physiology
Feasibility Studies
Female
Humans
Motivational Interviewing*
Osteoarthritis, Knee* / therapy
Quality of Life
Victoria

Associated data

ANZCTR/ACTRN12621000267853