Correlation between Quadriceps Endurance and Adduction Moment in Medial Knee Osteoarthritis.

It is not clear whether the strength or endurance of thigh muscles (quadriceps and hamstring) is positively or negatively correlated with the adduction moment of osteoarthritic knees. This study therefore assessed the relationships between the strength and endurance of the quadriceps and hamstring m...

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Main Authors: Soon-Hyuck Lee, Jin-Hyuck Lee, Sung-Eun Ahn, Min-Ji Park, Dae-Hee Lee
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2015-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4635012?pdf=render
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author Soon-Hyuck Lee
Jin-Hyuck Lee
Sung-Eun Ahn
Min-Ji Park
Dae-Hee Lee
author_facet Soon-Hyuck Lee
Jin-Hyuck Lee
Sung-Eun Ahn
Min-Ji Park
Dae-Hee Lee
author_sort Soon-Hyuck Lee
collection DOAJ
description It is not clear whether the strength or endurance of thigh muscles (quadriceps and hamstring) is positively or negatively correlated with the adduction moment of osteoarthritic knees. This study therefore assessed the relationships between the strength and endurance of the quadriceps and hamstring muscles and adduction moment in osteoarthritic knees and evaluated predictors of the adduction moment. The study cohort comprised 35 patients with unilateral medial osteoarthritis and varus deformity who were candidates for open wedge osteotomy. The maximal torque (60°/sec) and total work (180°/sec) of the quadriceps and hamstring muscles and knee adduction moment were evaluated using an isokinetic testing device and gait analysis system. The total work of the quadriceps (r = 0.429, P = 0.037) and hamstring (r = 0.426, P = 0.045) muscles at 180°/sec each correlated with knee adduction moment. Preoperative varus deformity was positively correlated with adduction moment (r = 0.421, P = 0.041). Multiple linear regression analysis showed that quadriceps endurance at 180°/sec was the only factor independently associated with adduction moment (β = 0.790, P = 0.032). The adduction moment of osteoarthritic knees correlated with the endurance, but not the strength, of the quadriceps muscle. However, knee adduction moment did not correlate with the strength or endurance of the hamstring muscle.
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spelling doaj.art-6750ca9fe29a492cac1a93320d3e0c942022-12-21T20:12:51ZengPublic Library of Science (PLoS)PLoS ONE1932-62032015-01-011011e014197210.1371/journal.pone.0141972Correlation between Quadriceps Endurance and Adduction Moment in Medial Knee Osteoarthritis.Soon-Hyuck LeeJin-Hyuck LeeSung-Eun AhnMin-Ji ParkDae-Hee LeeIt is not clear whether the strength or endurance of thigh muscles (quadriceps and hamstring) is positively or negatively correlated with the adduction moment of osteoarthritic knees. This study therefore assessed the relationships between the strength and endurance of the quadriceps and hamstring muscles and adduction moment in osteoarthritic knees and evaluated predictors of the adduction moment. The study cohort comprised 35 patients with unilateral medial osteoarthritis and varus deformity who were candidates for open wedge osteotomy. The maximal torque (60°/sec) and total work (180°/sec) of the quadriceps and hamstring muscles and knee adduction moment were evaluated using an isokinetic testing device and gait analysis system. The total work of the quadriceps (r = 0.429, P = 0.037) and hamstring (r = 0.426, P = 0.045) muscles at 180°/sec each correlated with knee adduction moment. Preoperative varus deformity was positively correlated with adduction moment (r = 0.421, P = 0.041). Multiple linear regression analysis showed that quadriceps endurance at 180°/sec was the only factor independently associated with adduction moment (β = 0.790, P = 0.032). The adduction moment of osteoarthritic knees correlated with the endurance, but not the strength, of the quadriceps muscle. However, knee adduction moment did not correlate with the strength or endurance of the hamstring muscle.http://europepmc.org/articles/PMC4635012?pdf=render
spellingShingle Soon-Hyuck Lee
Jin-Hyuck Lee
Sung-Eun Ahn
Min-Ji Park
Dae-Hee Lee
Correlation between Quadriceps Endurance and Adduction Moment in Medial Knee Osteoarthritis.
PLoS ONE
title Correlation between Quadriceps Endurance and Adduction Moment in Medial Knee Osteoarthritis.
title_full Correlation between Quadriceps Endurance and Adduction Moment in Medial Knee Osteoarthritis.
title_fullStr Correlation between Quadriceps Endurance and Adduction Moment in Medial Knee Osteoarthritis.
title_full_unstemmed Correlation between Quadriceps Endurance and Adduction Moment in Medial Knee Osteoarthritis.
title_short Correlation between Quadriceps Endurance and Adduction Moment in Medial Knee Osteoarthritis.
title_sort correlation between quadriceps endurance and adduction moment in medial knee osteoarthritis
url http://europepmc.org/articles/PMC4635012?pdf=render
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