Knee Extension and Flexion Weakness in People With Knee Osteoarthritis: Is Antagonist Cocontraction a Factor?
نویسندگان
چکیده
منابع مشابه
Knee extension and flexion weakness in people with knee osteoarthritis: is antagonist cocontraction a factor?
STUDY DESIGN Controlled laboratory study, cross-sectional data. OBJECTIVES To investigate isometric knee flexion and extension strength, failure of voluntary muscle activation, and antagonist cocontraction of subjects with knee osteoarthritis (OA) compared with age-matched asymptomatic control subjects. BACKGROUND Quadriceps weakness is a common impairment in individuals with knee OA. Disus...
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I measured the knee extension torque, produced by eight hemiparetic patients during repeated knee extension-flexion reversals and during separated knee extension-flexion dyads, to determine the effect of "reversal of antagonists" on knee extension torque. The hemiparesis in these eight patients was secondary to intracranial lesions. I tested their involved lower extremity on an isokinetic dynam...
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OBJECTIVE Test the hypothesis that greater baseline peak external knee adduction moment (KAM), KAM impulse, and peak external knee flexion moment (KFM) during the stance phase of gait are associated with baseline-to-2-year medial tibiofemoral cartilage damage and bone marrow lesion progression, and cartilage thickness loss. METHODS Participants all had knee OA in at least one knee. Baseline p...
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BACKGROUND AND PURPOSE Stiff-knee gait is defined as reduced knee flexion during the swing phase. It is accompanied by frontal plane compensatory movements (eg, circumduction and hip hiking) typically thought to result from reduced toe clearance. As such, we examined if knee flexion assistance before foot-off would reduce exaggerated frontal plane movements in people with stiff-knee gait after ...
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ژورنال
عنوان ژورنال: Journal of Orthopaedic & Sports Physical Therapy
سال: 2009
ISSN: 0190-6011,1938-1344
DOI: 10.2519/jospt.2009.3079