Balance and fuNctional mobility of individuals with knee osteoarthrosis with and without history of falls / Equilíbrio e mobilidade funcional em portadores de osteoartrose de joelho com e sem histórico de queda

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

INTRODUCTION: Individuals with knee osteoarthrosis show strength reduction and activation of the quadriceps muscle, proprioception deficit, decrease in mobility, episodic pain and decrease in coordination, when associated with the natural physiological changes related to the aging process may favor the occurrence of postural balance disturbance during the daily life activities, possibly causing falls. This study aimed to analyze the balance profile and functional mobility of individuals with knee osteoarthrosis, with and without prior history of falls. METHODS: 64 subjects from 50 to 75 years of age (63.7) were separated into three different groups: KOAF group (18 subjects with KOA and prior report of falls); KOANF (24 subjects with KOA and no report of prior falls) and control group (22 healthy subjects). The KOA groups degree of osteoarthrosis was determined by X-rays of the knee, according to the criteria suggested by Kellgren-Lawrence. Womac questionnaire was used in order to analyze the functional incapacity. For the functional evaluation of balance, two instruments were used: the Berg Balance Scale (BBS) and the Timed Up and Go test (TUG). For the static evaluation of balance, the Chattecx Balance System platform was used. The person was asked to stand up straight for twenty-five seconds, with the eyes initially opened and then shut. RESULTS: The functional evaluation of balance showed that the TUG test time and the BBS score were significantly lower in subjects with KOA, compared to CG. The OA groups (KOAF and KOANF) showed a higher excursion of COPap and ellipse area than CG, with the eyes shut condition. KOAF group showed a higher mean speed of COP than CG. In stabilogram diffusion analysis, for both visual conditions, KOA groups showed greater values in DST, DLT and Δx2 than CG, in AP direction. TUG test showed a moderate correlation with KOA degree and Womac score; and a weak correlation with pain. BBS showed a moderate inverted correlation with KOA degree and womac score; a weak inverted correlation with pain. Womac score showed a weak correlation with VELap, VELml and ellipse area of the COP, with the eyes opened condition. CONCLUSION: Results of the study imply that individuals with KOA, regardless of prior history of falls, show a balance deficit, increasing the risk of falls in this population. In addiction, the level of compromised degree of KOA, as well as the individuals functional incapacity are considered good predictors, for the more they increase, the more the balance alteration, the functional mobility and the predisposition to falls also increase.

ASSUNTO(S)

educacao fisica fall osteoartrose limitação da mobilidade musculoskeletal equilibrium mobility limitation osteoarthritis equilíbrio musculoesquelético

ACESSO AO ARTIGO

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