J Mov Disord.  2025 Jan;18(1):87-92. 10.14802/jmd.24210.

Spatiotemporal Gait Parameters During Turning and Imbalance in Parkinson’s Disease: Video-Based Analysis From a Single Camera

• Jeon H
• Shin JH
• Yu R
• Kang MK
• Lee S
• Kim S
• Jin B
• Woo KA
• Kim HJ
• Jeon B

• KMID: 2564049
• DOI: http://doi.org/10.14802/jmd.24210

Abstract

Objective
This study aims to objectively evaluate turning gait parameters in Parkinson’s disease (PD) patients using 2D-RGB video-based analysis and explore their relationships with imbalance.
Methods
We prospectively enrolled PD patients for clinical assessment, balance analysis and gait with 180º turning. Spatiotemporal gait parameters during turning were derived using video-based analysis and correlated with modified Hoehn and Yahr (mHY) stages and center of pressure (COP) oscillations.
Results
A total of 64 PD patients were enrolled. The PD patients with higher mHY stages (≥2.5) had significantly longer turning times, greater numbers of steps, wider step bases and less variability in step length during turns. COP oscillations were positively correlated with the mean turning time on both the anterior-posterior and right-left axes.
Conclusion
Spatiotemporal gait parameter during turning, derived from video-based gait analysis, may represent apromising biomarker for monitoring postural instability in PD patients.

Keyword

Parkinson’s disease; Gait; Turning; Postural instability; Video-based analysis