Table 4.

Pearson’s product moment correlation analysis between clinical data and gait variables of PD patients at slower, preferred, and faster speeds.

Variables	UPDRS Total	UPDRS Part 3	L-Dopa Dose
Slower Speed
Stance phase	0.251 *	0.185	0.010
GA	0.246 *	0.333 **	−0.174
CV of stride length	0.263 *	0.219	0.016
CV of single support phase	0.232 *	0.237 *	−0.039
CV of stance phase	0.275 *	0.299 *	−0.074
Preferred Speed
Single support phase	−0.229 *	−0.175	0.031
Double support phase	0.262 *	0.161	0.022
Stance phase	0.250 *	0.123	0.064
Faster Speed
CV of double support phase	0.202	0.299 **	−0.179

CV: coefficient of variance, GA: gait asymmetry, L-dopa: levodopa, UPDRS: Unified Parkinson’s Disease Rating Scale. * p <0.05, ** p < 0.01.