Category: Parkinsonism, Others
Objective: This study aimed to investigate the relationship between gait parameters during turning and postural imbalance and falls in Parkinson’s disease (PD).
Background: It is widely recognized that impaired gait during turning is associated with falls in PD patients. However, conventional gait analytic tools including pressure mat systems cannot provide comprehensive gait analysis during turning.
Method: We prospectively enrolled early or de novo PD patients at the Seoul National University Hospital outpatient clinic from March 2022 to February 2023. We collected clinical variables including age, sex, and disease duration and evaluated them using the MDS-UPDRS scale. All participants underwent previously established 3D video-based gait analysis using a single RGB camera (Gaitome) and balance analysis (Pedoscan system). Participants were instructed to walk (forward, turn 180 degrees, and walk back) in a 7-meter walkway five times. Gait phases were segmented into straight walking and turning phases, and turning time and number of steps were automatically calculated. We analyzed the correlation of turning-related gait parameters with center of pressure (COP) deviation measured from the Pedoscan system.
Results: We enrolled 26 PD participants in the study. The mean age was 72.35 ± 13.04, with a disease duration of 2.31 ± 1.49. Mean turning time correlated with static and total COP movement (R = 0.55, p = 0.010), and mean step length during turning correlated with total COP movement (R = -0.77, p = 0.039) on Pedoscan analysis.
Conclusion: Our study showed that turning-related gait variables estimated by video-based gait analysis were significantly correlated with postural instability. Future studies should investigate different clinical syndromes with postural instability and differentiate subtypes of parkinsonian syndrome.
To cite this abstract in AMA style:JH. Shin, HY. Jeon, B. Jin, SM. Lee, KA. Woo, HJ. Kim, B. Jeon. Gait during turning associates with imbalance and falls in PD: 3D Video based analysis from a single camera [abstract]. Mov Disord. 2023; 38 (suppl 1). https://www.mdsabstracts.org/abstract/gait-during-turning-associates-with-imbalance-and-falls-in-pd-3d-video-based-analysis-from-a-single-camera/. Accessed September 22, 2023.
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MDS Abstracts - https://www.mdsabstracts.org/abstract/gait-during-turning-associates-with-imbalance-and-falls-in-pd-3d-video-based-analysis-from-a-single-camera/