Evidence map›Paper›PMID 18067658›Full record

Trial reportBMC musculoskeletal disorders2007

The effects of hip muscle strengthening on knee load, pain, and function in people with knee osteoarthritis: a protocol for a randomised, single-blind controlled trial.

Kim L Bennell, Michael A Hunt, Tim V Wrigley, David J Hunter, Rana S Hinman

2 registry-linked trialsOpen access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in BMC musculoskeletal disorders, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 22 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 2 pooled it
4.1field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT04875689 nacompletednot on this mapstarted 2020, after this paper: background citation

Effects of Laser Therapy on Chronic Knee Joint Osteoarthritis Patients

TypeinterventionalSponsorRiphah International UniversityRan2020 to 2021Enrolled42ConditionsKnee OsteoarthritisArmsGroup A (Experimental, Group B (Control)
NCT04993911 nacompletednot on this mapstarted 2021, after this paper: background citation

Effects of Strength and Balance Training to Reduce the Fall Risk in Knee Osteoarthritis Patients

TypeinterventionalSponsorRiphah International UniversityRan2021 to 2021Enrolled64ConditionsSports Physical TherapyArmsExperimental Group, Control Group
3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 2 syntheses or guidelines pooled it, 76 citations in OpenAlex.

  1. Intramuscular Fat Infiltration and Knee Osteoarthritis: A Systematic Review and Meta-Analysis.Physiotherapy research international : the journal for researchers and clinicians in physical therapy · 2026
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  8. Economic burden of knee joint replacement in Iran.Cost effectiveness and resource allocation : C/E · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 2 countries.

Kim L BennellCentre for Health, Exercise & Sports Medicine, School of Physiotherapy, University of Melbourne, Australia. k.bennell@unimelb.edu.au
Michael A Hunt
Tim V Wrigley
David J Hunter
Rana S Hinman
University of Melbourne · AUNew England Baptist Hospital · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLower limb strengthening exercises are an important component of the treatment for knee osteoarthritis (OA). Strengthening the hip abductor and adductor muscles may influence joint loading and/or OA-related symptoms, but no study has evaluated these hypotheses directly. The aim of this randomised, single-blind controlled trial is to determine whether hip abductor and adductor muscle strengthening can reduce knee load and improve pain and physical function in people with medial compartment knee OA. METHODS/

design88 participants with painful, radiographically confirmed medial compartment knee OA and varus alignment will be recruited from the community and randomly allocated to a hip strengthening or control group using concealed allocation stratified by disease severity. The hip strengthening group will perform 6 exercises to strengthen the hip abductor and adductor muscles at home 5 times per week for 12 weeks. They will consult with a physiotherapist on 7 occasions to be taught the exercises and progress exercise resistance. The control group will be requested to continue with their usual care. Blinded follow up assessment will be conducted at 12 weeks after randomisation. The primary outcome measure is the change in the peak external knee adduction moment measured during walking. Questionnaires will assess changes in pain and physical function as well as overall perceived rating of change. An intention-to-treat analysis will be performed using linear regression modelling and adjusting for baseline outcome values and other demographic characteristics. DISCUSSION: Results from this trial will contribute to the evidence regarding the effect of hip strengthening on knee loads and symptoms in people with medial compartment knee OA. If shown to reduce the knee adduction moment, hip strengthening has the potential to slow disease progression.

trial registrationAustralia New Zealand Clinical Trials Registry ACTR12607000001493.

Indexed as

AgedAged, 80 and overBiomechanical PhenomenaDisease ProgressionExerciseFemaleGaitHip JointHumansKnee JointMaleMiddle AgedMuscle, SkeletalMuscle StrengthOsteoarthritis, KneePain

Identifiers

PMID18067658
PMCPMC2235855
OpenAlexW2166710207

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.