Article

Disability resulting from knee osteoarthritis (OA) is determined by physiological
and functional variables though the interactions between the variables remain
unclear and deserve further study. This study's major objective was to explore
the relationship between pain, body mass index (BMI), balance, self-report
function, and physical function in a cohort who had both unilateral and bilateral
knee OA. Fifty-two patients (46 female, 6 male) ranging from 31 to 80 years of
age (mean +/- SD: 59.0 +/- 9.8 years) with radiograph-confirmed OA of the knees
participated in this study. Participants' pain intensity, self-reported function,
dynamic balance, and physical function performance were measured by using box
numerical scale, OA Index of Lequesne, functional reach test, and both stair
climbing and timed up-and-go (TUG) tests, respectively. Associations between age,
BMI, pain, balance, self-reported function, and physical function performance
were explored by univariate and multivariate analyses at alpha = 0.05.
Significant direct correlations were found between physical function performance
and self-reported function (r = 0.56, r = 0.01) and age (r = 0.55, p = 0.01) and
between self-reported function and age (r = 0.40, p = 0.01) in the cohort with
bilateral knee OA. Significant inverse correlation was observed between age and
balance (r = -0.58, p = 0.01) in participants with unilateral knee OA. In the
regression model for all participants, self-reported function and age accounted
for 27.0% of the variance in stair climbing test and 29.0% of the variance in the
TUG test. Self-reported function and age are significant predictors of physical
function in individuals with knee OA.

Langue : ANGLAIS