Upper Extremity Freezing and Dyscoordination in Parkinson’s Disease: Effects of Amplitude and Cadence Manipulations

Table 3

Spearman’s correlations between UE PCI, Gait PCI, FOG-Q, and number of FO-UE events.

	FO-UE	UE PCI
Baseline
UE PCI	0.41*	—
Gait PCI	−0.22	0.18
FOG-Q	0.27	0.09
Fast
UE PCI	0.10	—
Gait PCI	0.04	0.15
FOG-Q	0.45*	−0.05
Small
UE PCI	0.66**	—
Gait PCI	0.28	0.19
FOG-Q	0.30	0.27
SmallFast
UE PCI	−0.32	—
Gait PCI	0.06	0.34*
FOG-Q	−0.12	0.21

∗P < 0.05.
∗∗P < 0.01.
Abbreviations:
UE: upper extremity.
PCI: phase coordination index.
FOG-Q: freezing of gait questionnaire.
FO-UE: freezing of upper extremity.