田代 英樹, 小柳 左門

Hideki TASHIRO, Samon KOYANAGI

九州大学医学部循環器内科

Reserach Institute of Angiocardiology and Cardiovascular Clinic, Faculty of Medicine, Kyushu University

キーワード : 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