Reserach Institute of Angiocardiology and Cardiovascular Clinic, Faculty of Medicine, Kyushu University
Echocardiography, Exercise test, Cardiac function
The purpose of this study was to quantitatively analyse the response of the left ventricular wall motion
to a submaximal treadmill test in 14 normal subjects applying two-dimensional echocardiography.
Echocardiograms of the left ventricle were recorded before and immediately after treadmill testing. The
heart rate and blood pressure increased from 73±7 beats/min to 161±19 beats/min and from 125±10/82±21 mmHg to 165±27/79±9 mmHg, respectively.
Immediately after exercise, the systolic shortening ratio of the left ventricular wall increased from 41±8% to 46±8% at the chordae level (p