Table 1.

Values at baseline and during static handgrip

	Baseline	Handgrip	P Value
SBP, mmHg	128 ± 11	142 ± 13*	<0.05
DBP, mmHg	69 ± 9	81 ± 10*	<0.05
HR, beats/min	58 ± 4	65 ± 5	0.077
MVC, kg		29 ± 3
CBV, cm/s (LIMA)	10.1 ± 2.1	9.3 ± 2.2*	<0.05
CVR unit (LIMA)	7.35 ± 0.73	9.40 ± 1.09*	<0.05
CBV cm/s (LAD)	15.1 ± 2.2	14.0 ± 2.2	0.053
CVR, unit (LAD)	4.82 ± 0.63	6.31 ± 1.1*	<0.05

Values (means ± SE) were obtained from patients who had left internal mammary artery (LIMA) grafted to the left anterior descending coronary artery (LAD). All hemodynamic data (SBP, systolic blood pressure; DBP, diastolic blood pressure, HR, heart rate; CBV, coronary blood flow velocity; CVR, coronary vascular resistance index) were obtained during baseline and during static handgrip at 50% of patient's respective maximum voluntary contraction (MVC). CBV was measured simultaneously by 2 separate transthoracic duplex ultrasound machine from the LIMA graft and the distal LAD.

^*Significantly different (P < 0.05) from the corresponding baseline values.