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Progressive Resistance Training Versus Total Hip Arthroplasty in Patients With Hip Osteoarthritis

Key facts

Who runs it
Vejle Hospital
Where
Denmark4 sites in 1 countryChoose a country to see its sites
Trial code
Status
Active, not recruiting
People taking part
109 people enrolled
Started
2 Sept 2019
Expected to end
Dec 2026
Type of study
Interventional, 2 groupsOne group gets an existing treatment, for comparison.
Treatments tested
  • Total Hip Arthroplasty
  • Progressive Resistance Training
Record updated
21 August 2026

Who can take part

Age
50 years and older
Sex
Women and men
Healthy volunteers
Cannot take part

The registry criteria, word for word

Show all 10 criteriaShow less

Who can take part

  • Adults aged ≥50 years
  • Clinical history and symptoms consistent with primary hip osteoarthritis (including hip osteoarthritis due to mild hip dysplasia that may be treated with standard components) and radiographic verified hip osteoarthritis defined as joint space narrowing <2 mm
  • Considered eligible for total hip arthroplasty by an orthopaedic surgeon (i.e. duration of symptoms >3 months, hip related pain, functional impairment or decreased range of motion (ROM), and attempted treatment with analgesics)

Who cannot take part

  • Lower extremity fractures within one-year prior to inclusion
  • Planned other lower extremity surgery within six months
  • Cancer diagnosis and receiving chemo-, immuno- or radiotherapy
  • Neurological diseases (e.g. previous stroke, multiple sclerosis, Parkinson's, Alzheimer's)
  • Other reasons for exclusion (i.e. inadequacy in written and spoken Danish, mentally unable to participate, physically unable to comply with the PRT protocol due to comorbidity (e.g. severe heart disease, previous major lower extremity surgery within six-months) etc.)
  • Severe walking deficits (dependency of two crutches or walker)
  • Body Mass Index >35 kg/m2

This trial has no sites in United States.

It has sites in one country. Choose a country to see its sites.

About the trial

What the trial wants to find out

Hip osteoarthritis is associated with joint pain, physical disability, decreased muscle strength and poor health status, and the most common cause for total hip arthroplasty. No studies have investigated the effect of total hip arthroplasty compared to non-surgical treatment in patients with end-stage hip osteoarthritis. This comparison is of upmost importance as it is unknown whether non-surgical treatment may be used as an alternate to surgery.

Read full original descriptionShow less

The purpose of this study is to investigate whether total hip arthroplasty followed by standard care is superior to progressive resistance training for improving hip function and pain in patients with end-stage hip osteoarthritis.

The hypothesis is that patients treated with total hip arthroplasty will improve more than patients treated with progressive resistance training.

The 2 groups in the trial

  • Total Hip ArthroplastyExisting treatment, for comparison

    A standard fast-track multimodal surgical program comprising patient information, optimised pain management, and early mobilisation. Total hip arthroplasty (THA) will be performed by experienced orthopaedic surgeons in accordance with the standard posterior surgical approach. Patients will receive standard postoperative rehabilitation consisting of either a standard leaflet with a hospital-specific home-based exercise program aimed at increasing hip muscle strength and range of motion or, if considered necessary, a referral to supervised hip-specific exercise therapy delivered at private physiotherapist clinics or municipal rehabilitation. Furthermore, postsurgical procedures will follow hospital-specific procedures ranging from no postsurgical control to postsurgical assessment of the hip and rehabilitation at the physiotherapy department (after six-weeks).

  • Progressive Resistance TrainingExisting treatment, for comparison

    A 12-week supervised explosive-type progressive resistance training (PRT) program with two training sessions a week. All training sessions will be conducted in municipal rehabilitation centres with one-to-one supervision and ≥48 hours of rest in between sessions. The standardised PRT program will consist of warm-up on a stationary bicycle (10 min) followed by four lower extremity exercises (50 min). Exercises will be performed unilaterally with as full range of motion as possible in sets of three separated by 60 sec of rest in the following order: leg press, hip extension, hip flexion, and hip abduction. Patients will be instructed to complete the concentric phase of each repetition "as fast as possible", maintain full extension for 1 sec, and perform the eccentric phase in 2-3 sec. Hip-related pain up to 5 rated on a Numerical Rating Scale (0-10) is considered acceptable during exercises. After the 12-weeks, patients will be offered three-months of optional unsupervised PRT.

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Progressive Resistance Training Versus Total Hip Arthroplasty in Patients With End-stage Hip Osteoarthritis (PROHIP): A Multicentre, Parallel-group, Randomised Controlled Superiority Trial
Record updated
21 August 2026