THE INFLUENCE OF WAR-SHIP INTENSE NOISE ON THE CARDIOVASCULAR SYSTEM OF YOUNG MEN / 第二军医大学学报

ABSTRACT

65 healthy young male subjects(20-25 age) were divided into test group(N = 25) and control group(N = 40) .The test group were exposed to intense noise environ-ment(124dBA)and the control group in relatively quiet condition(80dBA) for 1 hour.At the end of 1 hour exposure, the blood pressure, heart rate, electrocardiograph were m asured, and compared with that of pre-exposure.The results showed that the dia-stolic BP were rised,heart rate became slow and irregular after exposure to intense noise