. Author manuscript; available in PMC: 2018 Jul 1.

Published in final edited form as: Arch Phys Med Rehabil. 2017 Feb 28;98(7):1316–1324.e1. doi: 10.1016/j.apmr.2017.01.023

Table 2.

Comparison of step initiation between subjects with PD (Med Off, n=19) and healthy control (n=12) in three conditions.

Variable	Group	Self-initiated	Cued	Compensatory	Group effect		Interaction effect
Variable	Group	Self-initiated	Cued	Compensatory	F	p-value	F	p-value
ML size of APA (mm)	PD	18.1 (7.0)^ˆ	26.8 (7.1)^ˆ	7.3 (6.7)^ˆ	0.00	0.983	5.91	0.009^*
	HC	19.8 (7.0)^ˆ	34.4 (8.4)^ˆ	3.0 (2.6)^ˆ	0.00	0.983	5.91	0.009^*
Step length (m)	PD	0.50 (0.09)	0.49 (0.10)	0.23 (0.04)	5.63	0.025	2.32	0.127
	HC	0.51 (0.08)	0.56 (0.09)	0.32 (0.11)	5.63	0.025	2.32	0.127
Step velocity (m/sec)	PD	1.07 (0.15)⁺	1.17 (0.12)⁺^,^ˆ	1.01 (0.11)^#^,^ˆ	9.50	0.004^*	9.10	0.001^*
	HC	1.09 (0.13)	1.24 (0.14)	1.28 (0.21)^#	9.50	0.004^*	9.10	0.001^*
Step duration (sec)	PD	0.47 (0.04)	0.41 (0.05)	0.22 (0.03)	3.25	0.082	0.543	0.584
	HC	0.48 (0.06)	0.45 (0.08)	0.24 (0.05)	3.25	0.082	0.543	0.584

Note. significantly different (p<0.0125 (Bonferroni adjusted)).

significantly different (across groups; p<0.01) in post-hoc comparison (independent samples T-Test).

^ˆ

and

⁺

significantly different (across two conditions within one group; p<0.001) in post-hoc comparison (paired samples T-Test).