The Effect Of Exercise On Heart Rate, Stroke Volume, Total Peripheral Resistance, And Oxygen Consumption

2497 Words Sep 6th, 2014 10 Pages
Abstract: Many people are not getting adequate amounts of exercise and it is costing grave health problems such as diabetes and obesity. There has been an on-going, major concern in the medical field about the relationship of exercise and cardiorespiratory health and to better understand this correlation, this study analyzes the effect that exercise has on heart rate, stroke volume, total peripheral resistance, and oxygen consumption. I hypothesize that those who regularly exercise will overall have lower heart rates, increased stroke volume, lower total peripheral resistance, and higher oxygen consumption. To test my hypothesis, two groups were obtained: active, those who exercised more than seven hours a week, and inactive, those who did not exercise at all. Test subjects were asked to exercise on a bicycle ergometer until exhaustion as intensity increased every minute. In this experiment, both active and inactive groups observed an increase in heart rate, stroke volume, and oxygen consumption and a decrease in total peripheral resistance as time progressed. Overall, active individuals had lower heart rates, larger stroke volumes, and lower total peripheral resistance compared to inactive individuals. Surprisingly at rest, both groups were shown to have similar oxygen consumption rates, but at peak, the rate of the active group was much higher. Our results indicate a strong association between regular exercise and cardiorespiratory variables which stresses the importance…

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