. Author manuscript; available in PMC: 2007 Dec 27.

Published in final edited form as: Physica A. 2007 Sep 15;383(2):455–465. doi: 10.1016/j.physa.2007.04.120

Table 1.

Standard deviation and scaling exponents of stride-to-stride time series τ^hs; the values are given as mean ± standard error

	σ(τ^hs) (s)	α_DFA1	α_CMA	α_{DFA1_cor}
Controls	0.027 ± 0.001^a	0.92 ± 0.03^b	0.84 ± 0.03^c	0.80 ± 0.03^c
EPD	0.047 ± 0.007^a	0.88 ± 0.05	0.79 ± 0.05	0.73 ± 0.04
PD	0.053 ± 0.013^a	0.84 ± 0.02^b	0.76 ± 0.03^c	0.72 ± 0.03^c

Scaling exponents calculated by the DFA1, CMA and corrected DFA1 method are significantly increased for controls compared to PD patients. The scaling exponents of EPD and PD patients are not significantly different.

Mann—Whitney test:

Controls vs. EPD, Controls vs. PD: P<0.0001.

Controls vs. PD: P<0.05.

Controls vs. PD: 0.05<P<0.06.