Altered Dynamic Postural Control during Step Turning in Persons with Early-Stage Parkinson’s Disease

<table>Schematic representation of the COP and the eCOM trajectories during the step turn. Solid line: eCOM trajectory; dashed gray line: COP trajectory; Phase 1: from approach step to pivot step; Phase 2: from pivot step to acceleration step.</table>

Parkinson’s Disease

fig2

Figure 2

Figure 2: Altered Dynamic Postural Control during Step Turning in Persons with Early-Stage Parkinson’s Disease 