Table 2. Gait performance.

Case	Condition	Velocity, cm/s	Step length, cm (CV, %)	Step time, sec (CV, %)	Single support time, sec (CV, %)	Double support time, sec (CV, %)
1	ST	N.A.	N. A.	N.A.	N.A.	N.A.
	DT	N.A.	N.A.	N.A.	N.A.	N.A.
2	ST	42.50	30.00 (9.42)	0.66 (2.58)	0.40 (7.46)	0.55 (40.58)
	DT	18.20	11.24 (26.91)	0.52 (19.74)	0.37 (18.31)	0.30 (96.25)
3	ST	62.30	35.21 (14.14)	0.58 (9.97)	0.47 (3.85)	0.32 (3.13)
	DT	84.73	43.87 (14.28)	0.54 (11.36)	0.42 (7.02)	0.32 (31.31)
4	ST	52.85	36.99 (8.38)	0.66 (9.29)	0.53 (11.83)	0.42 (4.61)
	DT	58.20	34.40 (16.52)	0.60 (11.39)	0.43 (8.66)	0.40 (12.96)
5	ST	N.A.	N.A.	N.A.	N.A.	N.A.
	DT	62.80	36.73 (12.31)	0.56 (5.22)	0.32 (9.51)	0.37 (13.69)
6	ST	56.03	39.17 (5.33)	0.76 (4.55)	0.41 (9.07)	0.60 (4.83)
	DT	52.63	36.56 (9.26)	0.69 (9.62)	0.38 (12.37)	0.57 (21.86)
7	ST	77.63	45.63 (6.13)	0.62 (3.68)	0.42 (6.50)	0.35 (7.85)
	DT	63.23	33.68 (12.29)	0.61 (10.61)	0.38 (7.98)	0.39 (7.20)
8	ST	42.90	27.32 (17.63)	0.60 (13.46)	0.34 (17.31)	0.55 (8.32)
	DT	41.48	13.75 (2.66)	0.82 (66.83)	0.40 (43.62)	0.56 (35.61)
9	ST	52.90	32.84 (8.31)	0.69 (4.69)	0.40 (11.88)	0.54 (4.83)
	DT	74.59	35.17 (9.11)	0.55 (8.19)	0.33 (6.57)	0.41 (6.16)
10	ST	41.60	20.51 (13.88)	0.55 (4.69)	0.36 (6.85)	0.41 (5.90)
	DT	40.75	18.85 (17.60)	0.55 (12.47)	0.33 (6.79)	0.41 (9.60)
11	ST	N.A.	N.A.	N.A.	N.A.	N.A.
	DT	N.A.	N.A.	N.A.	N.A.	N.A.
12	ST	88.63	44.86 (6.70)	0.50 (2.78)	0.34 (6.15)	0.31 (6.99)
	DT	63.17	36.94 (9.39)	0.55 (4.29)	0.35 (10.68)	0.40 (11.07)
13	ST	55.30	37.03 (6.79)	0.67 (6.10)	0.48 (5.19)	0.41 (5.88)
	DT	81.10	40.64 (6.43)	0.51 (6.74)	0.38 (3.71)	0.28 (5.75)
14	ST	83.80	41.43 (3.24)	0.52 (2.92)	0.36 (4.62)	0.27 (4.04)
	DT	84.05	40.75 (5.48)	0.50 (3.86)	0.34 (4.31)	0.27 (7.28)
15	ST	N.A.	N.A.	N.A.	N.A.	N.A.
	DT	N.A.	N.A.	N.A.	N.A.	N.A.

Data derived from more affected parkinsonian side.

Data presented as mean (CV, %).

CV = SD/Mean*100%; Coefficient of variation.

N.A. = Not available.

ST = Single-task gait; DT = Dual-task gait.