Research Article

Which Aspects of Postural Control Differentiate between Patients with Parkinson’s Disease with and without Freezing of Gait?

Figure 4

COG pattern during mediolateral RWS. Each graph shows a representative COG movement pattern for a freezer, nonfreezer, and control participants. The vertical bars indicate the distance of the shift the participants were instructed to make and are set at 50% of the participants’ limit of stability. Panels (a), (b), and (c) show the COG pattern when a cue was given with respectively a 3 second, 2 second, and 1 second interval.
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(a) SLOW (3 sec/transition)
971480.fig.004b
(b) MODERATE (2 sec/transition)
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(c) FAST (1 sec/transition)