Article

OBJECTIVE: To identify potential neuromuscular factors associated with dynamic
balance in individuals with knee osteoarthritis (OA).
DESIGN: Cross-sectional
observational study; backward stepwise multiple linear regression was used to
identify factors associated with dynamic balance in 2 statistical models.
SETTING: University clinical research laboratory. PARTICIPANTS: Individuals aged
>/=50 years (N=52) with osteoarthritic changes on radiograph participated.
INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Dynamic balance was
assessed using the Community Balance and Mobility Scale (CB&M). Potentially
modifiable neuromuscular factors associated with dynamic balance were measured,
including the sum of concentric and eccentric lower-extremity muscle strength, 2
quadriceps-hamstrings muscle strength ratios, knee joint proprioception (joint
position sense), anticipatory postural control velocity, and knee joint range of
motion. RESULTS: The first model for explaining variance in CB&M scores consisted
of eccentric lower-extremity muscle strength and knee joint range of motion as
factors. The model containing these 2 variables explained 50% of the variance in
CB&M scores. The second model adjusted for descriptive variables, including age,
body mass index, and knee pain, contained only the neuromuscular variables
eccentric lower-extremity muscle strength, and explained 68% of the variance in
CB&M scores. CONCLUSIONS: These results suggest that muscle strength and, to a
lesser extent, knee joint range of motion are important factors associated with
dynamic balance as measured by the CB&M and should be considered in dynamic
balance interventions.
CI - Copyright (c) 2015 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS