Altered Dynamic Postural Control during Step Turning in Persons with Early-Stage Parkinson’s Disease
Figure 3
Resultant COP-eCOM distance (a), and resultant COP-COG distance (b), resultant COM velocity (c) between groups during the step turn cycle (±sd). HS: heel strike; TO: toe off; light gray line: persons with early-stage Parkinson’s disease; black line: healthy control participants; gray shadow: double limb support time; white shadow: single limb support time. †denotes statistically significant difference between groups (). *denotes statistically significant difference between phases ().