Table 1.

Systolic properties of the left ventricle in male and female rats 8 weeks after MI

	M‐MI	F‐MI
n	6	7
Heart Rate, beats/min	318.7 ± 8.1	324.6 ± 5.2
Mean Arterial Pressure, mmHg	87.5 ± 3.4	93.6 ± 3.3
End‐Diastolic Volume, mL	0.57 ± 0.08	0.46 ± 0.02*
End‐Diastolic Volume/BW, mL/kg	0.95 ± 0.13	1.11 ± 0.09
End‐Systolic Volume, mL	0.43 ± 0.10	0.28 ± 0.03*
End‐Systolic Volume/BW, mL/kg	0.72 ± 0.19	0.68 ± 0.08
Stroke Volume, mL	0.14 ± 0.02	0.18 ± 0.01*
Stroke Work, mmHg • mL	12.1 ± 1.9	17.1 ± 0.9*
Stroke Work Index, mmHg • mL/kg	20.2 ± 3.3	40.4 ± 2.1***
Cardiac Output, mL/min	44.6 ± 8.7	57.8 ± 3.1*
Cardiac Index, mL/min/kg	74.9 ± 14.7	139.2 ± 7.9**
Fractional Shortening, %	13.3 ± 4.1	20.6 ± 2.1*
Ejection Fraction, %	26.7 ± 7.7	39.9 ± 3.4*
LV Peak Systolic Pressure, mmHg	98.6 ± 1.7	99.4 ± 3.6
Maximum dP/dt, mmHg/sec	4693.3 ± 402.4	5008.9 ± 258.5
End‐Systolic Wall Stress, kdynes/cm2	130.2 ± 8.5	110.6 ± 5.5*

Values are means ± SEM; n, number of rats. BW, body weight. *P < 0.05, **P < 0.01 and ***P < 0.001 versus M‐MI.