Research Article

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 ( ).
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(a) Resultant COP-eCOM distance
386962.fig.003b
(b) Resultant COP-COG distance
386962.fig.003c
(c) Resultant COM velocity