. 2015 Nov 23;2015:650645. doi: 10.1155/2015/650645

Table 2.

Gait variables during self-selected walking and DT conditions.

	Low disability				High disability				Controls
	SS	DT ABC	DT 7	DT 3	SS	DT ABC	DT 7	DT 3	SS	DT ABC	DT 7	DT 3
Stride length (cm)	135.64 ± 14.07	121.64 ± 16.66^a	116.55 ± 19.09^a	121.40 ± 16.55^a	123.35 ± 25.96	114.87 ± 25.27^a	110.77 ± 27.14^a	115.91 ± 27.69^ab	135.32 ± 11.89	128.79 ± 12.54	126.28 ± 14.48^a	127.71 ± 10.79
Stride width (cm)	8.00 ± 4.69	7.14 ± 5.52	8.12 ± 5.55	7.61 ± 5.22	11.52 ± 2.94	10.76 ± 3.16	11.31 ± 2.93	11.60 ± 3.07	8.42 ± 3.41	9.20 ± 3.12^b	10.18 ± 3.08^a	9.40 ± 2.97
Double support (%)	28.61 ± 2.80^∗∗	32.78 ± 4.67^a	34.71 ± 5.87^a	32.19 ± 6.09	35.14 ± 9.78^∗	38.05 ± 11.71^∗ab	40.40 ± 12.97^a	39.16 ± 11.84^∗a	27.25 ± 2.57	29.26 ± 5.78	30.48 ± 8.84	29.86 ± 5.62
Velocity (cm/s)	118.27 ± 12.54	76.12 ± 25.24^a	72.31 ± 26.28^a	76.31 ± 17.08^a	101.29 ± 34.28	77.66 ± 29.84^a	80.36 ± 35.89^a	78.16 ± 36.43^a	117.37 ± 15.72	91.96 ± 23.24^a	87.88 ± 27.39^a	91.45 ± 27.27^a
Cadence (steps/min)	104.04 ± 8.68	74.01 ± 19.63^a	72.92 ± 17.96^a	75.77 ± 13.35^a	94.07 ± 22.94	79.03 ± 22.38^a	81.07 ± 27.63^a	77.03 ± 26.59^a	103.48 ± 10.56	85.82 ± 20.90^a	83.63 ± 22.42^a	91.45 ± 20.80

^∗Different from same condition in control group (p < 0.05); ^∗∗different from same condition in high disability group (p < 0.05); ^adifferent from self-selected walking in the same group (p < 0.05); ^bdifferent from DT 7 in the same group (p < 0.05); SS: self-selected walking; DT ABC: dual-task while reciting alternate letters of alphabet; DT 7: dual-task while serially subtracting 7's from 100; DT 3: dual-task while counting, leaving out multiples and numbers including 3; DTC: dual-task cost; values are mean ± standard deviation.