Static Posturographic Characteristics during Balance Control under Virtual Moving Surround in Patients with Chronic Ankle Sprain.
- Author:
Juha AN
1
;
Ji Hye HWANG
;
Young Keun WOO
;
Yun Hee KIM
;
Peter K W LEE
;
Nam Gyun KIM
Author Information
1. Department of Physical Medicine and Rehabilitation, Samsung Medical Center & Center for Clinical Medicine, Sungkyunkwan University School of Medicine, Korea. hwanglee@smc.samsung.co.kr
- Publication Type:Original Article
- Keywords:
Chronic ankle sprain;
Posturography;
Virtual moving surround
- MeSH:
Adult;
Ankle Injuries*;
Ankle*;
Head;
Humans
- From:Journal of the Korean Academy of Rehabilitation Medicine
2005;29(3):297-302
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
OBJECTIVE: To investigate static posturographic characteristics during balance control under virtual moving surround (VMS) using force platform and head mount display (HMD) device in patients with chronic ankle sprain as compared with that of normal adults. METHOD: Ten patients with chronic ankle sprain and 24 healthy adults participated. Center of pressure (COP) parameters were obtained for 20 seconds using force platform as total path distance and total sway area in following conditions (1) comfortable standing with opened and closed eyes, (2) VMS delivered using HMD with four different moving patterns. The virtual moving patterns composed of close-far, superior-inferior tilting (pitch), right-left tilting (roll) and horizontal rotation (yaw) movement. RESULTS: No significant difference was found between patients with chronic ankle sprain and healthy adults on comfortable standing with both open and closed eyes. But, patients revealed significantly increased total path distance and sway area of COP on all VMS conditions. CONCLUSION: These results showed that under VMS conditions patients with the weaker balance control problem were more sensitive to balance control than simple comfortable standing conditions with opened and closed eyes.
