Content » Vol 31, Issue 1

Original report

REORGANIZATION OF EQUILIBRIUM AND MOVEMENT CONTROL STRATEGIES IN PATIENTS WITH KNEE ARTHRITIS

J.-M. Viton1, L. Atlani, S. Mesure1, J.-P. Franceschi, J. Massion, A. Delarque1 and A. Bardot
DOI: 10.1080/16501977314348

Abstract

The purpose of this study was to identify changes in equilibrium and movement control strategies in patients with arthritis of the knee. These strategies were expected to be different from those of healthy subjects because of the impairments caused by knee arthritis. The different phases of a side step were studied in patients with severe knee arthritis using a movement analysis system and force-plates. The duration of the postural phase and the intensity of the horizontal ground reaction forces during the postural phase were increased when the pathological limb was the supporting one. The monopodal phase was shortened on the pathological leg. These results show that knee arthritis patients develop new posturomotor strate- gies mainly aimed at shortening the monopodal phase when the affected leg is the supporting one. This movement analysis method enables quantification of differences that cannot be observed on clinical examination between knee arthritis patients and control subjects, and provides additional information to the usual clinical evaluation scales

Lay Abstract

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