Article

Balance decreases and activities of daily living (ADLs) deteriorate
in older people with knee osteoarthritis (KOA); however, little is known about
the systems underlying poor balance control and how those impaired systems are
related to decreased ADL. OBJECTIVES: To explore which balance systems are
particularly impaired and to examine the relationship between physical ADL and
balance in older people with KOA. DESIGN: Case-control study. SETTING: Outpatient
clinic. PARTICIPANTS: Thirty people with KOA (mean age: 75.4 years) and 30
age-matched healthy adults (mean age: 75.4 years). METHODS: The Balance
Evaluation Systems Test (BESTest), consisting of 6 sections to evaluate
theoretically driven balance control systems, was used for balance assessment.
BESTest section scores were compared by use of the Wilcoxon rank-sum test. Pain
and physical ADL in the KOA group were evaluated with the Japanese edition of the
Western Ontario and McMaster Universities Osteoarthritis Index. Spearman
correlation coefficients and partial rank correlation coefficients were used to
investigate the relationship between physical ADL and the BESTest scores, pain,
radiography findings, and body mass index. MAIN OUTCOME MEASUREMENTS: The BESTest
total and section scores. RESULTS: Compared with controls, 5 of 6 BESTest section
scores were significantly lower in the KOA group. Physical ADL was significantly
correlated with the total BESTest score (r = -0.484, P = .007), pain (r = 0.635,
P < .001), Kellgren and Lawrence grade (r = 0.601, P < .001), and body mass index
(r = 0.403, P = .027). Partial rank correlation coefficients between physical ADL
and the total BESTest score (r = -0.443, P = .021) or section VI-Stability in
Gait (r = -0.466, P = .014) were significant after we controlled for other
variables. CONCLUSIONS: Most balance systems were impaired in older people with
KOA, and this impairment was associated independently with decreased physical
ADL.
CI - Copyright (c) 2016 American Academy of Physical Medicine and Rehabilitation.
Published by Elsevier Inc. All rights reserved.

Langue : ANGLAIS