Gender differences in cardiac work of static exercise among healthy young population
Journal Title: Indian Journal of Basic and Applied Medical Research - Year 2018, Vol 7, Issue 4
Abstract
Introduction: Sustained hand grip test is widely used to assess the cardiovascular functions. Cardiovascular responses to static exercise is found to increase as the intensity and duration of exercise increases. Several studies have assessed the heart rate and blood pressure response to exercise, however studies assessing the cardiac work in response to isometric exercise is scarce. Our objective in this study is to determine the cardiac work response to sustained isometric contraction and to find the gender difference in cardiac work and cardiovascular response to sustained isometric contraction. Method: 42 healthy young participants between 18 and 30 years were recruited. Heart rate (HR), Cardiac output (CO) and left ventricular ejection time (LVET) was measured using impedance cardiography. Blood pressure was measured using an automated blood pressure device. Cardiovascular response to 40 % of maximal voluntary contraction for 90 seconds was assessed. Rate pressure product and triple product was derived from the parameters assessed. Results: There was significant increase in cardiac work during isometric exercise. There was increase in HR, SBP and DBP during isometric exercise. There was no gender differences in cardiac work and cardiovascular responses to isometric exercise. Conclusion: This study concludes that there is significant increase in cardiac work while performing isometric exercise. There is no gender differences in cardiovascular responses to isometric exercise.
Authors and Affiliations
Jean Fredrick
Keywords
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