Isokinetic assessment of the hip muscles in patients with osteoarthritis of the knee

OBJECTIVES: To evaluate the difference in isokinetic strength of hip muscles between patients with knee osteoarthritis (OA) and matched healthy controls, and to establish the correlation between this isokinetic strength and pain and function in patients with knee OA. METHODS: 25 patients with a diag...

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Detalles Bibliográficos
Autores: Costa, Renata Alqualo [UNIFESP], Oliveira, Leda Magalhães de [UNIFESP], Watanabe, Sandra Hiroko [UNIFESP], Jones, Anamaria [UNIFESP], Natour, Jamil [UNIFESP]
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2010
País:Brasil
Institución:Universidade Federal de São Paulo (UNIFESP)
Repositorio:Repositório Institucional da UNIFESP
Idioma:inglés
OAI Identifier:oai:repositorio.unifesp.br:11600/5480
Acceso en línea:http://dx.doi.org/10.1590/S1807-59322010001200006
http://repositorio.unifesp.br/handle/11600/5480
Access Level:acceso abierto
Palabra clave:Hip muscles
Isokinetic assessment
Strength
Peak torque
Knee osteoarthritis
Descripción
Sumario:OBJECTIVES: To evaluate the difference in isokinetic strength of hip muscles between patients with knee osteoarthritis (OA) and matched healthy controls, and to establish the correlation between this isokinetic strength and pain and function in patients with knee OA. METHODS: 25 patients with a diagnosis of unilateral knee OA, 25 patients with bilateral knee OA, and 50 matched controls were evaluated using the visual analog scale for pain, knee Lequesne index, Western Ontario and McMaster Universities questionnaire and an isokinetic test. RESULTS: The groups were matched for age, gender and body mass index. The results of the isokinetic test revealed lower peak torque of the hip in patients with OA of the knee than in the control group for all movements studied. Strong correlations were found between the peak torque, visual analog scale and function. CONCLUSIONS: Patients with OA of the knee exhibit lower isokinetic strength in the hip muscles than healthy control subjects. Strengthening the muscles surrounding the hip joint may help to decrease pain in people with knee OA. Some correlations between pain/function and peak torque were found.