Impact of motivational feedback on levels of physical activity and quality of life by activity monitoring following knee arthroplasty surgery-protocol for a randomized controlled trial nested in a prospective cohort (Knee-Activity)

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Abstract

BACKGROUND: Evidence on how to improve daily physical activity (PA) levels following total knee arthroplasty (TKA) or medial uni-compartmental knee arthroplasty (mUKA) by motivational feedback is lacking. Moreover, it is unknown whether a focus on increased PA after discharge from the hospital improves rehabilitation, physical function, and quality of life. The aim of this randomized controlled trial (RCT) nested in a prospective cohort is (a) to investigate whether PA, physical function, and quality of life following knee replacement can be increased using an activity monitoring device including motivational feedback via a patient app in comparison with activity monitoring without feedback (care-as-usual), and (b) to investigate the potential predictive value of PA level prior to knee replacement for the length of stay, return to work, and quality of life.

METHODS: The study is designed as a multicenter, parallel-group, superiority RCT with balanced randomization (1:1) and blinded outcome assessments. One hundred and fifty patients scheduled for knee replacement (TKA or mUKA) will be recruited through Odense University Hospital, Denmark, Vejle Hospital, Denmark and Herlev/Gentofte Sygehus, Denmark. Patients will be randomized to either 12 weeks of activity monitoring and motivational feedback via a patient app by gamification or 'care-as-usual,' including activity monitoring without motivational feedback. The primary outcome is the between-group change score from baseline to 12-week follow-up of cumulative daily accelerometer counts, which is a valid proxy for average objectively assessed daily PA.

DISCUSSION: Improving PA through motivational feedback following knee replacement surgery might improve post-surgical function, health-related quality of life, and participation in everyday life.

TRIAL REGISTRATION: ClinicalTrials.gov, ID: NCT06005623. Registered on 2023-08-22.

TRIAL STATUS: Recruiting.

Original languageEnglish
Article number778
JournalBMC Musculoskeletal Disorders
Volume25
Number of pages12
ISSN1471-2474
DOIs
Publication statusPublished - 2. Oct 2024

Keywords

  • Humans
  • Arthroplasty, Replacement, Knee
  • Quality of Life
  • Prospective Studies
  • Motivation
  • Exercise
  • Denmark
  • Female
  • Male
  • Middle Aged
  • Randomized Controlled Trials as Topic
  • Recovery of Function
  • Aged
  • App
  • RCT
  • Knee osteoarthritis
  • Knee arthroplasty surgery
  • Motivational feedback

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