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Titre : | Knee Extensor and Flexor Muscle Power Explains Stair Ascension Time in Patients With Unilateral Late-Stage Knee Osteoarthritis: A Cross-Sectional Study (2015) |
Auteurs : | Anu M. Valtonen ; Tapani Pöyhönen ; Mikko Manninen |
Type de document : | Article |
Dans : | Archives of Physical Medicine and Rehabilitation (2015/2, 2015) |
Article en page(s) : | p. 253-259 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Gonarthrose ; Mobilité réduite ; Rééducation et réadaptation |
Mots-clés: | Mobility limitation ; Osteoarthritis ; knee ; Walking ; Marche à pied |
Résumé : |
Objectives To determine the extent of asymmetrical deficits in knee extensor and flexor muscles, and to examine whether asymmetrical muscle deficits are associated with mobility limitations in persons with late-stage knee osteoarthritis (OA). Design Cross-sectional. Setting Research laboratory. Participants A clinical sample (N=56; age range, 5075y) of eligible persons with late-stage knee OA awaiting knee replacement. Interventions Not applicable. Main Outcome Measures Knee extensor and flexor power and torque assessed isokinetically; thigh muscle cross-sectional area (CSA) assessed by computed tomography; mobility limitation assessed by walking speed and stair ascension time; and pain assessed with the Western Ontario and McMaster Universities Osteoarthritis Index questionnaire. Results The asymmetrical deficits in knee extensor and flexor power and torque were between 18% and 29% (P<.001 regarding the thigh muscle csa asymmetrical deficit was larger knee extensor power deficits and weaker flexor on contralateral side were associated with slower stair ascension times. moreover ipsilateral greater pain in oa joint independently ascending time both models.> Conclusions The knee extensor and flexor muscle power of both the ipsilateral and contralateral sides and the pain in the OA knee were independently associated with stair ascension times. These results highlight the importance of assessing muscle power on both sides and knee pain in the prevention of mobility limitations in patients with knee OA. |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.sciencedirect.com/science/article/pii/S0003999314011174 |