TY  - JOUR
PY  - 2016//
TI  - Postural sway, balance confidence and fear of falling in women with knee osteoarthritis in comparison to matched controls
JO  - PM & R : the journal of injury, function, and rehabilitation
A1  - Taglietti, Marcelo
A1  - Dela Bela, Laís Faganello
A1  - Dias, Josilainne Marcelino
A1  - Marcondes Pelegrinelli, Alexandre Roberto
A1  - Nogueira, Jéssyca Fernandes
A1  - Batista Júnior, João Pedro
A1  - da Silva Carvalho, Rodrigo Gustavo
A1  - McVeigh, Joseph Gerard
A1  - Facci, Ligia Maria
A1  - Moura, Felipe Arruda
A1  - Cardoso, Jefferson Rosa
SP  - 774
EP  - 780
VL  - 9
IS  - 8
N2  - BACKGROUND: Osteoarthritis (OA) is a chronic degenerative disease that commonly affects the knee joints. Individuals over 65 years with knee OA have a greater risk of falls. However, there has be limited examination of the parameters of postural sway (increased time, speed and postural sway area (center of pressure area (CoP)), and OA of the knee. <br><br>OBJECTIVES: Primary: to determine whether the CoP variables discriminate between patients with knee OA and matched healthy volunteers, and to correlate the CoP variables with the Activities-Specific Balance Confidence Scale (ABC) and Falls Self-Efficacy Scale (FES); Secondary: to compare the CoP of the older women with OA with a control group in bipedal support condition with eyes opened and closed. <br><br>DESIGN: Cross-sectional study. SETTING: University Biomechanics Laboratory. PARTICIPANTS: Twenty-two participants were divided into two groups of 11: OA group (x¯=68 years (SD=7.4) and a control group (x¯=66 years (SD=4.4). <br><br>METHODS: Static postural balance was measured by a portable force platform. Data were collected in both visual conditions (eyes open and closed), in a random order. Three attempts of 30 seconds were allowed for each participant on the force platform, with a one minute interval between attempts. MAIN OUTCOME MEASURE: Variables the CoP: total displacement of sway (TDS, in cm), anteroposterior amplitude displacement (APAD, in cm), medial-lateral amplitude displacement (MLAD, in cm), total mean velocity (TMV, in cm/s) and dispersion of the center of pressure (AREA, in cm(2)). <br><br>RESULTS: The postural sway analysis found statistically significant differences in the eyes open condition for the TDS (p=.020), APAD (p=.042), TMV (p=.010), and AREA (p=.045). In the discriminant analysis none of CoP variables were able to classify the groups (p=.15). The correlation analysis showed only the AREA with eyes closed was associated with the ABC Scale (rho=-0.42). <br><br>CONCLUSIONS: Women with knee OA had greater postural sway when compared to a control group for the eyes open condition. CoP variables could not discriminate between the groups. The AREA (dispersion of the center of pressure) was negatively correlated with the ABC Scale, when the eyes were closed.<br><br>Copyright © 2016 American Academy of Physical Medicine and Rehabilitation. Published by Elsevier Inc. All rights reserved.<p />  <p>Language: en</p>
LA  - en
SN  - 1934-1482
UR  - http://dx.doi.org/10.1016/j.pmrj.2016.11.003
ID  - ref1
ER  -