Computerized Posturographic Measurement in Elderly Women with Unilateral Knee Osteoarthritis.
10.5535/arm.2012.36.5.618
- Author:
Kil Byung LIM
1
;
Hong Jae LEE
Author Information
1. Department of Rehabilitation Medicine, Ilsan Paik Hospital and Institute of Sports Rehabilitation, Inje University College of Medicine, Goyang 411-706, Korea. honglee@paik.ac.kr
- Publication Type:Original Article
- Keywords:
Balance;
Posture;
Osteoarthritis;
Knee
- MeSH:
Aged;
Female;
Gravitation;
Humans;
Knee;
Leg;
Osteoarthritis;
Osteoarthritis, Knee;
Postural Balance;
Posture;
Weight-Bearing
- From:Annals of Rehabilitation Medicine
2012;36(5):618-626
- CountryRepublic of Korea
- Language:English
-
Abstract:
OBJECTIVE: To identify the subtle change of postural control in elderly patients with unilateral knee osteoarthritis (OA) with computerized dynamic posturography. METHOD: Twenty-two healthy women and twenty-six women with unilateral knee OA, aged 60 and over, were enrolled. The computerized posturographic measures included a weight bearing pattern during squatting and sit-to-stand, sway velocity of center of gravity (COG) during one leg standing, on-axis velocity and directional control of COG during rhythmic weight shift, rising index during sit-to-stand, end sway during tandem walk, and movement time during step up/over. RESULTS: It was shown that patients bore significantly less weight on the affected side during the 30degrees and 60degrees squat and sit-to-stand. Sway velocity of COG during one leg standing was greater whereas the on-axis velocity and directional control during the front/back rhythmic weight shift were significantly lower in the patient group. The rising index during sit-to-stand was significantly lower and movement time during step up/over with the affected side was significantly longer in patients. CONCLUSION: This study demonstrated in detail a decline of postural balance by utilizing computerized posturography in elderly women with unilateral knee OA. They had less weight-bearing, more sway, and less ability of intentional postural control on the affected side.
