Quadriceps Exercise Before Total Knee Arthroplasty (The QUADX-1 Trial)
QUADX-1
Efficacy of Pre-operative Quadriceps Strength Training on Knee-extension Strength Before and Shortly Following Total Knee Arthroplasty: A Randomized Dose-response Trial (The QUADX-1 Trial)
1 other identifier
interventional
140
1 country
1
Brief Summary
The trial investigates the efficacy of knee-extension exercise prior to total knee replacement. The participants are randomly allocated to one of three exercise dosages. There is no control group.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Oct 2016
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
October 1, 2016
CompletedFirst Submitted
Initial submission to the registry
October 3, 2016
CompletedFirst Posted
Study publicly available on registry
October 12, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 1, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
February 25, 2020
CompletedApril 26, 2022
April 1, 2022
3.3 years
October 3, 2016
April 19, 2022
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Isometric knee-extension strength at 60 degrees knee flexion measured as Nm/kg body mass
The measurement will be assessed using a computerized strength chair (Good Strength Chair, Metitur Oy, Jyvaskyla, Finland).
Change from 1) baseline to 2) after 12 weeks of exercise/just before surgery
Secondary Outcomes (8)
Isometric knee-extension strength at 60 degrees knee flexion measured as Nm/kg body mass
Change from 1) baseline to 3) at hospital discharge (3-8 days after surgery), and change from 1) baseline to 4) three months after surgery
6 min walk test for distance (6MWT)
Change from 1) baseline to 2) after 12 weeks of exercise/just before surgery, and change from 1) baseline to 3) at hospital discharge (3-8 days after surgery), and change from 1) baseline to 4) three months after surgery
Stair climb test (SCT)
Change from 1) baseline to 2) after 12 weeks of exercise/just before surgery, and change from 1) baseline to 3) at hospital discharge (3-8 days after surgery), and change from 1) baseline to 4) three months after surgery
Knee Osteoarthritis Outcome Score (KOOS)
Change from 1) baseline to 2) after 12 weeks of exercise/just before surgery, and change from 1) baseline to 3) at hospital discharge (3-8 days after surgery), and change from 1) baseline to 4) three months after surgery
Oxford Knee Score (OKS)
Change from 1) baseline to 2) after 12 weeks of exercise/just before surgery, and change from 1) baseline to 3) at hospital discharge (3-8 days after surgery), and change from 1) baseline to 4) three months after surgery
- +3 more secondary outcomes
Other Outcomes (1)
Adverse events
Assessment at 2) after 12 weeks of exercise/just before surgery, 3) at hospital discharge (3-8 days after surgery) and 4) three months after surgery
Study Arms (3)
Group 2
ACTIVE COMPARATORTwo knee-extension exercise sessions per week. Each exercise session comprises a single strength training exercise; knee-extension, which is performed in 3 sets with 12 RM repetitions in each set. The knee-extension resistance training exercise is performed with an elastic exercise band.
Group 4
ACTIVE COMPARATORFour knee-extension exercise sessions per week. Each exercise session comprises a single strength training exercise; knee-extension, which is performed in 3 sets with 12 RM repetitions in each set. The knee-extension resistance training exercise is performed with an elastic exercise band.
Group 6
ACTIVE COMPARATORSix knee-extension exercise sessions per week. Each exercise session comprises a single strength training exercise; knee-extension, which is performed in 3 sets with 12 RM repetitions in each set. The knee-extension resistance training exercise is performed with an elastic exercise band.
Interventions
Each exercise session comprises a single strength training exercise; knee-extension, which is performed in 3 sets with 12 RM repetitions in each set. The knee-extension resistance training exercise is performed with an elastic exercise band.
Each exercise session comprises a single strength training exercise; knee-extension, which is performed in 3 sets with 12 RM repetitions in each set. The knee-extension resistance training exercise is performed with an elastic exercise band.
Each exercise session comprises a single strength training exercise; knee-extension, which is performed in 3 sets with 12 RM repetitions in each set. The knee-extension resistance training exercise is performed with an elastic exercise band.
Eligibility Criteria
You may qualify if:
- Patient is a possible candidate for a primary TKA due to knee osteoarthritis
- Patient is eligible for home-based quadriceps exercise
- Patient has an age ≥ 50 years
- Patient is a possible candidate for primary unilateral TKA, based on all the below terms:
- Knee pain \>3 (Numeric Rating Scale) in the last week
- Kellgren-Lawrence classification grade ≥2
- Oxford Knee Score \<30
- Patient is resident in one of the three municipalities (København, Hvidovre or Brøndby) involved in the trial
- Patient is able to speak and understand Danish
You may not qualify if:
- Exercise is contra-indicated for the patient
- Patient has a neurological disorder
- Patient has a diagnosed systemic disease (ASA score ≥ 3)
- Patients with terminal illness
- Patient has severe bone deformity demanding use of nonstandard implants
- Weekly alcohol consumption above national recommendations (\>7 units women, \>14 units men)
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Clinical Research Centre, Amager Hvidovre hospital
Hvidovre, 2650, Denmark
Related Publications (3)
Husted RS, Troelsen A, Husted H, Gronfeldt BM, Thorborg K, Kallemose T, Rathleff MS, Bandholm T. Knee-extensor strength, symptoms, and need for surgery after two, four, or six exercise sessions/week using a home-based one-exercise program: a randomized dose-response trial of knee-extensor resistance exercise in patients eligible for knee replacement (the QUADX-1 trial). Osteoarthritis Cartilage. 2022 Jul;30(7):973-986. doi: 10.1016/j.joca.2022.04.001. Epub 2022 Apr 9.
PMID: 35413476DERIVEDHusted RS, Bandholm T, Rathleff MS, Troelsen A, Kirk J. Perceived facilitators and barriers among physical therapists and orthopedic surgeons to pre-operative home-based exercise with one exercise-only in patients eligible for knee replacement: A qualitative interview study nested in the QUADX-1 trial. PLoS One. 2020 Oct 23;15(10):e0241175. doi: 10.1371/journal.pone.0241175. eCollection 2020.
PMID: 33095777DERIVEDHusted RS, Troelsen A, Thorborg K, Rathleff MS, Husted H, Bandholm T. Efficacy of pre-operative quadriceps strength training on knee-extensor strength before and shortly following total knee arthroplasty: protocol for a randomized, dose-response trial (The QUADX-1 trial). Trials. 2018 Jan 18;19(1):47. doi: 10.1186/s13063-017-2366-9.
PMID: 29347947DERIVED
Related Links
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Thomas Bandholm, PhD
Clinical Research Center, Hvidovre University Hospital
- PRINCIPAL INVESTIGATOR
Rasmus S Husted, MSc., PT.
Clinical Research Center, Hvidovre University Hospital
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- PhD, MSc., PT.
Study Record Dates
First Submitted
October 3, 2016
First Posted
October 12, 2016
Study Start
October 1, 2016
Primary Completion
February 1, 2020
Study Completion
February 25, 2020
Last Updated
April 26, 2022
Record last verified: 2022-04
Data Sharing
- IPD Sharing
- Will share