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Dynamic and static quadriceps muscle endurance in people with COPD and healthy age and gender-matched controls
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- Bergqvist, Matilda (author)
- Umeå universitet,Avdelningen för fysioterapi
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- Lindahl, Maja (author)
- Umeå universitet,Avdelningen för fysioterapi
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- Frykholm, Erik, 1985- (author)
- Umeå universitet,Avdelningen för fysioterapi
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- Nyberg, Andre, Docent, 1984- (author)
- Umeå universitet,Avdelningen för fysioterapi
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(creator_code:org_t)
- European Respiratory Society, 2019
- 2019
- English.
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In: European Respiratory Journal. - : European Respiratory Society. - 0903-1936 .- 1399-3003. ; 54:suppl 63
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Abstract
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- Introduction: It is commonly known that quadriceps muscle endurance is decreased among people with COPD, however, whether static and dynamic quadriceps muscle endurance is affected to the same extent, remains to be determined. The latter of importance for the design of exercise modalities targeting quadriceps endurance in COPD.Methods: Static (isometric) and dynamic (isokinetic, isotonic) measurements of quadriceps muscle endurance was performed using a computerized dynamometer on 30 of individuals with COPD (FEV1 63% predicted) and 30 healthy age and gender-matched controls. Test order was randomized, separated by 30 min of rest. Comparisons between groups included both relative (seconds/repetitions) and absolute (total work [Nm]) measures of quadriceps endurance. Between-group results are presented as percentage difference (%) and effect sizes (ES).Results: When compared to healthy age and gender matched controls, people with COPD had significantly lower absolute measures of quadriceps endurance (isometric -32%, ES 0.66 [moderate]; isokinetic -29%, ES 0.94 [large], isotonic -38%, ES 0.89 [large], all p <0.05) as well as lower relative measures of dynamic quadriceps endurance (isotonic [repetitions] -20%, ES 0.50 [moderate], p = 0.02) while static quadriceps endurance did not differ between groups (isometric [seconds] -3%, ES 0.06 [trivial], p = 0.617).Conclusion: As evident by larger ES, dynamic quadriceps endurance seems to be reduced to a larger extent than static quadriceps endurance in people with COPD. Thus, exercise modalities that aim to improve quadriceps endurance should preferably be designed to increase dynamic quadriceps muscle enduranceFootnotesCite this article as: European Respiratory Journal 2019; 54: Suppl. 63, OA3814.This is an ERS International Congress abstract. No full-text version is available. Further material to accompany this abstract may be available at www.ers-education.org (ERS member access only).
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Sjukgymnastik (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Physiotherapy (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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