Alterations Of The Cardiovascular Hemodynamic Parameters During An Exhaustive Exercise In Non- And Air Polluted Environments And Their Relationships With The Maximal Oxygen Uptake In Perimenopausal Women
Poster Presentation XML
Authors
Department of Sport Physiology, Faculty of Sport Sciences, Mazandaran University, Babolsar, Iran
Abstract
Numerous epidemiological evidence has reported a link between air pollution exposure and increasing stress on the cardiovascular system. The purpose of this study was to investigate the effect of exhaustive exercise on the oxygen pulse, myocardial oxygen consumption, systolic blood pressure (SBP) and heart rate (HR), and their relationship with the maximal oxygen uptake in air-polluted (PE) and non- air polluted (NPE) environments.
Randomly; 60 perimenopausal women in PE and NPE were divided into experimental and control groups. Various cardiovascular hemodynamic parameters; such as the oxygen pulse, percentage of oxygenated haemoglobin (SPo2), myocardial oxygen consumption, maximum rate of oxygen consumption (Vo2MAX), SBP and HR; were evaluated before and after an exhaustive exercise (Bruce test). The information of air pollution status was obtained from the Department of Environment at least 3 months prior to the start of the study. Data were analyzed by independent t-test and Pearson correlation.
Performing an exhaustive exercise significantly increased the myocardial oxygen consumption and oxygen pulse while it caused a significant decreased SPo2 in PE compared to NPE. However, Air pollution led to an increase in resting heart rate. Significant correlation was observed between Vo2Max and the myocardial oxygen consumption (r = 0.394) and heart rate (r = 0.641) during exhaustive activity in PE.
Based on the findings, even one exhaustive exercise session can affect the myocardial oxygen consumption and cardiovascular efficiency of the perimenopausal women population in PE. Therefore, doing exercise should be accompanied by considerations for disposed individuals in an air-polluted environment.
Keywords
Subjects