Table 1. The comparison of cerebral hemodynamic changes (n=13).

			Healthy subjects (n=7)		Stroke survivors (n=6)
			Right side	Left side	Affected side	Unaffected side
MCA	Vs	rest	83.0 (9.5)	80.6 (8.3)	72.5 (6.4)	77.5 (9.7)
		AOT	89.6 (12.3)*	89.6 (12.3)	75.8 (5.3)	82.9 (14.0)
	Vm	rest	57.3 (6.4)	57.3 (6.7)	50.7 (6.3)	54.3 (8.5)
		AOT	63.3 (9.1)*	61.6 (7.4)*	53.2 (6.9)*	57.1 (7.7)*
	PI	rest	0.75 (0.09)	0.70 (0.04)	0.74 (0.14)	0.74 (0.17)
		AOT	0.71 (0.12)	0.71 (0.12)	0.73 (0.17)	0.77 (0.15)
	RI	rest	0.52 (0.04)	0.50 (0.02)	0.51 (0.06)	0.51 (0.07)
		AOT	0.49 (0.05)	0.50 (0.02)	0.50 (0.08)	0.52 (0.06)
ACA	Vs	rest	70.3 (16.2)	79.0 (12.6)	69.5 (16.6)	80.0 (35.3)
		AOT	73.1 (17.1)*	84.9 (13.8)*	73.0 (17.3)*	82.9 (32.3)
	Vm	rest	46.6 (9.8)	54.4 (10.4)	47.5 (13.0)	54.0 (19.8)
		AOT	49.0 (10.5)*	59.0 (11.7)*	50.3 (13.5)*	58.9 (24.8)
	PI	rest	0.83 (0.14)	0.79 (0.14)	0.79 (0.11)	0.74 (0.19)
		AOT	0.80 (0.12)	0.73 (0.13)*	0.77 (0.15)	0.72 (0.18)
	RI	rest	0.55 (0.05)	0.53 (0.06)	0.53 (0.04)	0.50 (0.08)
		AOT	0.53 (0.04)	0.50 (0.05)	0.52 (0.06)	0.50 (0.08)
PCA	Vs	rest	39.9 (5.3)	34.1 (5.6)	35.0 (7.9)	34.5 (4.9)
		AOT	41.6 (4.4)	37.7 (5.1)*	38.5 (4.9)	37.8 (4.3)*
	Vm	rest	27.9 (3.7)	24.6 (4.4)	25.5 (3.8)	24.3 (3.5)
		AOT	29.4 (3.6)	27.3 (4.3)*	27.2 (4.8)	26.8 (3.6)*
	PI	rest	0.73 (0.07)	0.68 (0.06)	0.73 (0.14)	0.72 (0.07)
		AOT	0.72 (0.09)	0.68 (0.11)	0.72 (0.14)	0.71 (0.09)
	RI	rest	0.50 (0.03)	0.48 (0.02)	0.50 (0.07)	0.50 (0.03)
		AOT	0.50 (0.04)	0.48 (0.05)	0.50 (0.06)	0.50 (0.04)

Values are mean (SD). MCA, middle cerebral artery; ACA, anterior cerebral artery; PCA, posterior cerebral artery; Vs, systolic peak velocity; Vm, mean flow velocity; PI, pulsatility index; RI, resistance index; AOT, Action Observational Training; Significant difference between rest and AOT *p<0.05.