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Effects of hip muscle strengthening on knee load in knee osteoarthritis.

Effect of a 12-week program of hip abductor and adductor muscle strengthening on knee loading during walking in people with medial knee osteoarthritis.

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12607000001493
Enrollment
89
Registered
2007-01-02
Start date
2007-10-02
Completion date
2009-02-03
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

In people with medial knee osteoarthritis, a 12-week program of strengthening the hip abductor and adductor muscles will reduce knee loading during walking gait, as measured by a reduction in the knee adduction moment.

Interventions

People will be screened via telephone and undergo radiographic evaluation. Baseline testing will be performed at the University of Melbourne and the participant randomised into one of two groups: (i) hip strengthening; (ii) no strengthening control. The intervention will last for 12 weeks after which all participants will be reassessed by the same blinded assessor. The exercise intervention will comprise 7 visits over 12 weeks to one of 7 physiotherapists located around Melbourne plus home ex

People will be screened via telephone and undergo radiographic evaluation. Baseline testing will be performed at the University of Melbourne and the participant randomised into one of two groups: (i) hip strengthening; (ii) no strengthening control. The intervention will last for 12 weeks after which all participants will be reassessed by the same blinded assessor. The exercise intervention will comprise 7 visits over 12 weeks to one of 7 physiotherapists located around Melbourne plus home exercises five times weekly. A comprehensive exercise manual will be produced. Programs comprise standardized progressive strengthening exercises but the physiotherapist will individually determine the repetitions (up to 10), sets (up to 2) and resistance depending on the person’s pain level and response. Resistance will be obtained from cuff weights to the ankle and theraband. These will also be provided for home use. The exercises will comprise sidelying hip abduction, hip abduction and adduction in standing with theraband, and isometric hip adduction squeezes.

Sponsors

Prof Kim Bennell
Lead SponsorIndividual

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Blinded (masking used)

Eligibility

Sex/Gender
All
Age
50 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Eligibility will be confirmed by radiographic and clinical examination. Medial tibiofemoral joint osteoarthritis (OA) fulfilling American College of Rheumatology classification criteria and reporting average knee pain on walking >3 on an 11-point scale will be included. Other inclusion criteria will be: (i) varus knee malalignment on standing anteroposterior lower limb x-ray.

Exclusion criteria

(i) knee surgery or intra-articular corticosteroid injection within 6 months; (ii) current or past (within 4 weeks) oral corticosteroid use; (iii) systemic arthritic conditions; (iv) history of tibiofemoral/patellofemoral joint replacement or tibial osteotomy; (v) any other muscular, joint or neurological condition affecting lower limb function; (vi) back or hip pain within the past 3 years that caused the patient to seek treatment, take medication, miss work or interfere with function for at least one week; and (vii) any physiotherapy or lower limb strengthening exercises in the past 6 months.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026