Evidence map›Paper›PMID 41693614›Full record

Trial reportArthritis care & research2026

Does Long-Term Lower Extremity Strength Training in Adults With Knee Osteoarthritis and Varus Alignment Reduce Knee Joint Loading During Gait?

Stephen P Messier, Matthew N Vigliotti, Paige E Rice, Brian Pietrosimone, Shannon L Mihalko, Edward H Ip, Richard F Loeser, David J Hunter, Ali Guermazi, Ryan Hill and 3 more

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in Arthritis care & research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
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

13 authors.

Stephen P MessierWake Forest University, Winston-Salem, North Carolina.ORCID https://orcid.org/0000-0002-7033-8459
Matthew N VigliottiWake Forest University, Winston-Salem, North Carolina.
Paige E RiceWake Forest University, Winston-Salem, North Carolina.
Brian PietrosimoneUniversity of North Carolina, Chapel Hill.
Shannon L MihalkoWake Forest University, Winston-Salem, North Carolina.
Edward H IpWake Forest School of Medicine, Winston-Salem, North Carolina.
Richard F LoeserUniversity of North Carolina School of Medicine, Chapel Hill.ORCID https://orcid.org/0000-0003-2832-6144
David J HunterUniversity of Sydney, Sydney, New South Wales, Australia.ORCID https://orcid.org/0000-0003-3197-752X
Ali GuermaziBoston University School of Medicine, Boston, Massachusetts.
Ryan HillWake Forest University, Winston-Salem, North Carolina.
Santiago SaldanaWake Forest School of Medicine, Winston-Salem, North Carolina.
Kim L BennellThe University of Melbourne, Parkville, Victoria, Australia.
Paul DeVitaEast Carolina University, Greenville, North Carolina.

Funding

Wake Forest Claude D. Pepper OAIC - RenewalP30AG021332 · NIA · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI LEON LENCHIK · 2002 to 2026
$36.4M
Strength Training and Arthritis TrialR01AR059105 · NIAMS · WAKE FOREST UNIVERSITY · PI MESSIER, STEPHEN P · 2011 to 2015
$3.9M
General Nutrition CentersNIAMS NIH HHS 1 R01 AR059105-01NIAMS NIH HHS R01 AR059105NIA NIH HHS P30 AG021332NIA NIH HHS P30 AG21332
6 · The paper itself

Abstract

objectiveWe examined whether 18 months of strength training in individuals with knee varus alignment and medial tibiofemoral osteoarthritis (OA) reduced knee joint loads during walking compared to an attention control group.

methodsThis study was a secondary analysis of a randomized clinical trial that compared the effects of strength training to a control group in adults with knee OA. For this analysis, control participants had knee varus malalignment (≥2° varus; N = 49); participants in the strength training group met the varus malalignment criterion and increased their hip abductor strength by ≥20% from baseline to 18-month follow-up (N = 39). Linear regressions were used to compare means between groups at 18 months.

resultsThe strength training group had greater increases in strength in the quadriceps (45%), hamstrings (68%), and hip abductors (42%) than the control group (16%, 11%, 4%, respectively; P < 0.05). There were no significant differences in the mean peak internal knee abduction moment or mean peak knee compressive force between groups at 18-month follow-up. The adjusted means at 18-month follow-up for the internal knee extension moment were significantly less (27%) in the strength training group (P

conclusionAmong older adults with knee OA and varus alignment, long-term lower extremity strength training results in significant increases in strength but does not significantly alter most measures of knee joint loading during walking relative to an attention control group. The results cast doubt on whether clinically meaningful improvement in lower extremity muscle strength translates to clinically important attenuation in knee joint loading.

Indexed as

GaitKnee JointOsteoarthritis, KneeResistance TrainingAgedBiomechanical PhenomenaFemaleHumansLower ExtremityMaleMiddle AgedMuscle StrengthSecondary Data AnalysisTibiofemoral JointTime FactorsTreatment Outcome

Identifiers

PMID41693614
PMCPMC13511327

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.