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Test-re-test reliability of quadriceps muscle strength measures in people with more severe chronic obstructive pulmonary disease
Heart and Lung Institute, University of Laval, Quebec, Canada.ORCID iD: 0000-0003-2782-7959
2018 (English)In: Journal of Rehabilitation Medicine, ISSN 1650-1977, E-ISSN 1651-2081, Vol. 50, no 8, p. 759-764Article in journal (Refereed) Published
Abstract [en]

OBJECTIVE: To investigate the interday test-retest reliability of volitional and non-volitional measurements of isometric quadriceps strength using a strain-gauge in people with severe to very severe chronic obstructive pulmonary disease.

DESIGN: Cross-sectional study. Volitional quadriceps measurements consisted of isometric maximal voluntary contractions. Non-volitional measurements were obtained during magnetic potentiated twitch stimulations of the femoral nerve.

SETTING: Research centre laboratory.

PARTICIPANTS: Twenty-four individuals with severe to very severe chronic obstructive pulmonary disease (percentage of predicted forced expiratory volume in 1 s, 37% predicted).

RESULTS: Maximal voluntary contractions and potentiated twitch stimulations measures demonstrated excellent interday test-retest relative reliability (ICC 0.97 and 0.80, respectively), while absolute reliability measures were different between techniques (SEM 1.4 kg, CV 3.2%, MDC 3.9 kg vs SEM 1.5 kg, CV 12.2%, MDC 4.2 kg for maximal voluntary contractions and potentiated twitch stimulations, respectively).

CONCLUSION: The results supports that maximal voluntary contraction and potentiated twitch stimulation measurements of isometric quadriceps strength are reliable in people with severe to very severe chronic obstructive pulmonary disease as evident excellent relative reliability using both techniques, although the former technique appears to have better absolute reliability.

Place, publisher, year, edition, pages
2018. Vol. 50, no 8, p. 759-764
Keywords [en]
pulmonary disease, chronic obstructive, isometric contraction, magnetic stimulation, muscle strength, quadriceps muscle, reproducibility of results
National Category
Physiotherapy
Research subject
physiotherapy
Identifiers
URN: urn:nbn:se:umu:diva-154719DOI: 10.2340/16501977-2354ISI: 000441351600011PubMedID: 30004108OAI: oai:DiVA.org:umu-154719DiVA, id: diva2:1274074
Available from: 2018-12-27 Created: 2018-12-27 Last updated: 2024-03-22Bibliographically approved

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Nyberg, Andre

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