Table 2:

Gait outcomes in neurotypical adults (NTA) and people with PD at comfortable and fast walking speeds. Data are reported for all participants of both groups [N(PD)=67; N(NTA)=40] unless otherwise noted.

					95% Confidence Interval of the Difference
		Mean Comfortable	Mean Fast	Mean Change	Lower	Upper	p-value	Effect size (Cohen’s d)
Speed (m/s)	NTA	1.20	1.50	0.31	0.26	0.35	<0.001	2.38
	PD	0.99	1.21	0.23	0.20	0.26	<0.001	1.84
Stride Length (m)	NTA	1.27	1.39	0.12	0.09	0.14	<0.001	1.59
	PD	1.04	1.15	0.11	0.09	0.13	<0.001	1.64
Cadence (steps/min)	NTA	112.23	129.15	16.92	14.23	19.61	<0.001	2.01
	PD	112.20	124.21	12.02	10.20	13.84	<0.001	1.61
Swing Time (% stride)	NTA	39.44	41.66	2.22	1.86	2.59	<0.001	1.93
	PD	38.38	40.09	1.71	1.44	1.99	<0.001	1.52
Arm RoM (deg)	NTA	47.58	65.18	17.60	14.16	21.04	<0.001	1.64
	PD	28.78	35.83	7.05	5.27	8.83	<0.001	0.97
Turn Velocity (deg/s)	NTA	184.16	217.60	33.44	27.31	39.57	<0.001	1.74
	PD	137.22	156.44	19.22	15.42	23.02	<0.001	1.23
Steps to turn (n)	NTA	3.74	3.91	0.17	0.02	0.32	0.030	0.36
	PD	4.66	4.68	0.02	−0.14	0.18	0.802	0.03
Trunk AP (deg)	NTA	8.32	9.16	0.84	0.19	1.49	0.012	0.41
	PD	7.18	7.55	0.38	0.04	0.72	0.030	0.27
Trunk ML (deg)	NTA	5.16	6.00	0.83	0.53	1.14	<0.001	0.88
	PD	4.28	4.93	0.66	0.46	0.85	<0.001	0.84
Stride Time Variability (a.u)	NTA	0.04	0.03	−0.004	−0.01	0.00	0.230	0.19
	PD	0.06	0.05	−0.01	−0.02	−0.01	<0.001	0.51
Swing Time Variability (a.u)	NTA	0.02	0.02	0.0002	0.00	0.00	0.881	0.02
	PD	0.03	0.03	−0.003	−0.01	0.00	0.003	0.37
LyE- Trunk (a.u)	NTA*	0.31	0.32	0.01	−0.02	0.04	0.445	0.16
	PD**	0.36	0.37	0.004	−0.01	0.02	0.659	0.06
LyE- Lumbar (a.u)	NTA*	0.41	0.41	0.01	−0.03	0.04	0.715	0.07
	PD**	0.46	0.48	0.02	0.00	0.04	0.055	0.25
Double Support Time (% stride)	NTA	10.51	8.43	−2.07	−2.52	−1.63	<0.001	1.48
	PD	11.78	10.15	−1.64	−1.91	−1.36	<0.001	1.46

^*n=25;

^**n=61;

LyE: Lyapunov Exponent; a.u.: Arbitrary Units

Bolded values represent significant impact of walking speed