March 3, 2026Thorax

Minimal important difference of quadriceps maximal voluntary contraction (QMVC) in COPD: a prospective cohort study

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Changes in quadriceps maximal voluntary contraction should be interpreted using specific minimum important difference estimates.
Sex-specific estimates are vital for proper assessment of quadriceps strength in individuals with COPD.
This study employed a prospective cohort approach to gather data on quadriceps strength changes over time.
Identifying these differences may enhance personalized treatment strategies for patients with COPD.

Implication

Prospective cohort study estimates the minimum important difference for quadriceps strength in COPD, suggesting tailored assessments based on sex.

Abstract

We provide MID estimates for QMVC parameters. Sex-specific or normalised MID estimates for QMVC should be used to facilitate the interpretation of change.

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Cite This Study

Jenkins et al. (2026) studied this question.

synapsesocial.com/papers/69a75a56c6e9836116a2008f https://doi.org/10.1136/thorax-2025-223799

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Implication

Prospective cohort study estimates the minimum important difference for quadriceps strength in COPD, suggesting tailored assessments based on sex.

Abstract

We provide MID estimates for QMVC parameters. Sex-specific or normalised MID estimates for QMVC should be used to facilitate the interpretation of change.

Minimal important difference of quadriceps maximal voluntary contraction (QMVC) in COPD: a prospective cohort study

Key Points

Implication

Abstract

Discussion

Cite This Study

Minimal important difference of quadriceps maximal voluntary contraction (QMVC) in COPD: a prospective cohort study

Key Points

Implication

Abstract

Discussion

Cite This Study

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