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The Journal of orthopaedic and sports physical therapy

Portable Dynamometry Is Reliable for Measuring Knee and Ankle Strength in Daily Practice: Results From a Systematic Review With Meta-analysis and Evidence Gap Map Using the COSMIN Methodology

2 octobre 2026Recherche originale1 min de lecture

Par Gajardo-Burgos R, Jaque de la Barra T, Ramírez-Campillo R et 2 autres.

Contenu en anglais

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Résumé
Mots-clés
Auteurs
Source

Résumé

Objective

To estimate the reliability and criterion validity of knee and ankle muscle strength measured using portable dynamometers.

Design

Systematic review with meta-analysis and evidence gap map.

Literature search

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Systematic search of MEDLINE, Embase, CINAHL, SPORTDiscus, and Web of Science from inception to April 2025.

Study selection criteria

We included studies that evaluated reliability or criterion validity of portable dynamometers for measuring knee extensor/flexor or ankle dorsiflexor/plantarflexor/invertor/evertor isometric strength in uninjured people or people with a lower-limb musculoskeletal condition.

Data synthesis

We performed meta-analyses for each muscle group, position, and fixation method. Methodological quality was assessed using the COSMIN (COnsensus-based Standards for the selection of health Measurement INstruments) Risk of Bias tool. Certainty of evidence was graded using a modified GRADE (Grading of Recommendations Assessment, Development and Evaluations) approach.

Results

We included 123 studies (n = 5042 participants); 113 studies were included in the meta-analysis. There was moderate- to high-certainty evidence of sufficient reliability (intraclass correlation coefficient ≥ 0.70) across most muscle groups, positions, and fixation methods. High-certainty evidence supported external fixation for assessing knee extensors/flexors and ankle plantarflexors. Evidence for criterion validity was sparse, and the certainty of evidence ranged from very low to high. There was high-certainty evidence of sufficient validity for knee extensor and flexor strength with external fixation in seated positions (r = 0.82-0.90).

Conclusion

Portable dynamometers were sufficiently reliable for measuring isometric knee and ankle strength in clinical practice. The evidence for criterion validity was limited. Portable dynamometers should not yet be considered direct substitutes for isokinetic dynamometry. Reliability and validity estimates were consistent across uninjured and clinical populations. J Orthop Sports Phys Ther 2026;56(10):657-671. Epub 7 Jul 2026. doi:10.2519/jospt.2026.14091.

Mots-clés

Humans
Muscle Strength
Reproducibility of Results
Muscle Strength Dynamometer
Ankle
Knee
Muscle, Skeletal

Auteurs

Gajardo-Burgos R
Jaque de la Barra T
Ramírez-Campillo R
Waiteman MC
Sáez de Villarreal E

Source

Publié dans The Journal of orthopaedic and sports physical therapy. Le résumé est reproduit tel qu’il a été publié et reste l’œuvre de ses auteurs ; lisez l’article complet à la source.

pubmed.ncbi.nlm.nih.gov/42823646/

Prognia référence cet article à des fins de documentation et de formation. Il ne constitue pas un avis médical. Lisez toujours l’original et suivez les recommandations en vigueur et les protocoles locaux avant d’agir.

En bref

Revue: The Journal of orthopaedic and sports physical therapy
Type: Recherche originale
Publié: 2 octobre 2026
Spécialité: Pneumologie
Temps de lecture: 1 min
Auteurs: 5
DOI: 10.2519/jospt.2026.14091
PubMed: 42823646

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