Muscle mass, isokinetic torque, and functional capacity in women with osteoarthritis of the knee

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dc.contributor.buuauthorGür, Hakan
dc.contributor.buuauthorÇakın, Nurşen
dc.contributor.departmentUludağ Üniversitesi/Tıp Fakültesi/Spor Hekimliği Anabilim Dalı.tr_TR
dc.contributor.researcheridI-9594-2017tr_TR
dc.date.accessioned2021-07-09T11:05:35Z
dc.date.available2021-07-09T11:05:35Z
dc.date.issued2003-10
dc.description.abstractObjectives: To investigate the relations between cross-sectional area and concentric and eccentric torques in the quadriceps and hamstring muscles and to determine how functional capacity relates to pain, muscle mass, and concentric and eccentric knee torques in women who have bilateral osteoarthritis (OA) of the knee. Design: Randomized, descriptive study. Setting: A university exercise physiology laboratory in Turkey. Participants: Eighteen women with bilateral knee OA (grades 2 or 3) graded radiographically. Interventions: Not applicable. Main Outcome Measures: Selected functional tests included the 15-m walk, rising from a chair, descending stairs, and stair climbing. Pain during the functional tests was subjectively measured on an 11-point scale (range, 0-10). Concentric and eccentric torques of the quadriceps and hamstring muscles were measured by isokinetic dynamometry with angular velocities of 60degrees, 120degrees, and 180degrees/s; cross-sectional areas of the quadriceps and hamstring muscles were measured by computed tomography. Results: Eccentric torque was significantly (P range, < .05 to .001) greater than concentric torque for the quadriceps (range, 16%-100%) and hamstring (range, 50%-158%) muscles at all angular velocities. Torque-velocity curves for concentric and eccentric contractions were almost identical to those found in healthy young and elderly people. According to r(2) values, cross-sectional area of the quadriceps and hamstring muscles explained 24% to 61% (r(2) range, .24-61) and 38% to 51% (r(2) range, .38-51) of the variations in concentric and eccentric peak torques, respectively. Very small to moderate correlations (.01-75) were observed among torque at any velocity and the variables of functional capacity and pain. For stair-climbing times, the best predictor variable was the eccentric hamstring to concentric quadriceps torque ratio. For stair descending, it was the concentric hamstring to eccentric quadriceps torque ratios. These torque ratios explained 81% (r(2) = .81) and 61% (r(2) = .61) of the variations, respectively. Conclusions: The findings in a patient group with bilateral OA of the knee showed that (1) eccentric torque is greater than concentric torque in knee muscles; (2) the correlation coefficients (r) between concentric and eccentric torques at different velocities (r range, .63-86), but not between reciprocal torque ratios (r range, .02-69), are good; (3) cross-sectional area cannot be considered as a single predictor of peak torque for either quadriceps or hamstring muscles; and (4) the variation in descending stairs and stair-climbing capacities can be explained by the reciprocal torque ratios of knee muscles.en_US
dc.identifier.citationGür, H. ve Çakın, N. (2003). “Muscle mass, isokinetic torque, and functional capacity in women with osteoarthritis of the knee”. Archives of Physical Medicine and Rehabilitation, 84(10), 1534-1541.en_US
dc.identifier.endpage1541tr_TR
dc.identifier.issn0003-9993
dc.identifier.issue10tr_TR
dc.identifier.pubmed14586923tr_TR
dc.identifier.scopus2-s2.0-0141894093tr_TR
dc.identifier.startpage1534tr_TR
dc.identifier.urihttps://doi.org/10.1016/S0003-9993(03)00288-0
dc.identifier.urihttps://pubmed.ncbi.nlm.nih.gov/14586923/
dc.identifier.urihttp://hdl.handle.net/11452/21197
dc.identifier.volume84tr_TR
dc.identifier.wos000185880100017tr_TR
dc.indexed.pubmedPubmeden_US
dc.indexed.scopusScopusen_US
dc.indexed.wosSCIEen_US
dc.language.isoenen_US
dc.publisherW B Saunders Co-Elsevier Incen_US
dc.relation.journalArchives of Physical Medicine and Rehabilitationen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergitr_TR
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectElderlyen_US
dc.subjectMusclesen_US
dc.subjectOsteoarthritisen_US
dc.subjectPainen_US
dc.subjectRehabilitationen_US
dc.subjectTorqueen_US
dc.subjectIsometric strengthen_US
dc.subjectQuadricepsen_US
dc.subjectDisabilityen_US
dc.subjectPainen_US
dc.subjectEpidemiologyen_US
dc.subjectArthritisen_US
dc.subjectFlexoren_US
dc.subjectMenen_US
dc.subjectRehabilitationen_US
dc.subjectSport sciencesen_US
dc.subject.wosRehabilitationen_US
dc.subject.wosSport sciencesen_US
dc.titleMuscle mass, isokinetic torque, and functional capacity in women with osteoarthritis of the kneeen_US
dc.typeArticle
dc.wos.quartileQ1en_US

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