Effects of Freezing of Gait and Visual Information on the Static Postural Control Ability in Patients with Parkinson's Disease

  • Kim, Jung Yee (Department of Taekwondo, Graduate School of Dong-A University) ;
  • Son, Min Ji (Department of Medicine, Graduate School of Dong-A University) ;
  • Kim, You Kyung (Department of Taekwondo, Graduate School of Dong-A University) ;
  • Lee, Meoung Gon (Department of Health Science, Graduate School of Dong-A University) ;
  • Kim, Jin Hee (Department of Health Science, Graduate School of Dong-A University) ;
  • Youm, Chang Hong (Department of Health Care and Science, College of Health Sciences, Dong-A University)
  • 투고 : 2016.08.09
  • 심사 : 2016.09.13
  • 발행 : 2016.09.30


Objective: The purpose of this study was to analyze the effects of freezing of gait and visual information on the static postural control ability in patients with Parkinson's Disease (PD) during the bipedal stance with feet together. Method: This study included a total of 36 patients with PD; the freezer group included 17 PD patients (age: $69.3{\pm}6.2yrs$, height: $159.6{\pm}9.0cm$, weight: $63.4{\pm}9.78kg$) and the nonfreezer group included 19 PD patients (age: $71.4{\pm}5.6yrs$, height: $155.8{\pm}7.1cm$, weight: $57.7{\pm}8.6kg$). Static postural control ability was analyzed using variables of center of pressure (COP) and dividing by mediolateral, anteroposterior, and integration factors during a bipedal stance with the eyes open and closed. Results: Freezers and nonfreezers showed increases in anteroposterior velocity, mediolateral velocity, averaged velocity, and mediolateral 95% edge frequency when visual information was blocked. Additionally, freezers had greater anteroposterior range, 95% confidence ellipse area, and COP anteroposterior mean position than nonfreezers. Conclusion: Freezers and nonfreezers showed a reduction in static postural control ability when visual information was blocked. Additionally, the results of this study found a significant difference in static postural control ability between freezers and nonfreezers with PD. In particular, anteroposterior range, 95% confidence ellipse area, and COP anteroposterior mean position might be used to distinguish between freezers and nonfreezers with PD.


연구 과제 주관 기관 : Dong-A University


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피인용 문헌

  1. The Impact of Dual-Tasking on Postural Stability in People With Parkinson’s Disease With and Without Freezing of Gait vol.32, pp.2, 2018,