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Figure 2 Measurements of left ventricular function. (A) Left ventricular end-systolic diameter (LVESD) and left ventricular end-diastolic diameter (LVEDD) were measured by echocardiography four weeks after myocardial infarction. (B) Left ventricular shortening fraction (SF [percent]) in the same hearts. Values expressed as mean ± SD. *p = 0.003; #p = 0.001 vs. SedMI. In panel A, solid bar = SedMI and open bar = ExMI. ExMI = exercised-infarcted (n = 8); SedMI = sedentary-infarcted (n = 4).