Figure 3.

Center of mass (COM) excursion in meters in response to waist pulls. Error bars are standard deviation. Top graph: single trial COM traces relative to baseline position for a representative PwDCM and control. Vertical dashed lines indicate start and stop of cable pull. There were significant interactions (P < 0.001) for Magnitude × Predictability × Stance, Predictability × Stance, Magnitude × Stance, and Magnitude × Predictability. Furthermore, there were significant main effects (P < 0.001) of Myelopathy, Stance, Predictability, and Magnitude. PwDCM, people with degenerative cervical myelopathy; SW shoulder width.