Cardiovascular System Lab Report

The Affects of Light Exercise on the Cardiovascular System
Maggie Moreau

Abstract The objective of this lab report and our experiment was to show how the cardiovascular system is affected by reclining or standing position and light exercise. The average reclining systolic pressure is 116.2 mmHg, and the average standing systolic pressure is 115.9 mmHg. The standard deviation for reclining systolic pressure was 8.2, and the standard deviation for standing systolic pressure is 12.3. The average reclining heart rate is 69.1 beats per minute, and the average standing heart rate is 82.9 beats per minute. The standard deviation for reclining heart rate is 9.8, and the standard deviation for standing heart rate is 17.8. The average
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The cardiovascular system includes the heart, blood vessels, and blood (McKinley 732). The heart provides the body with energy and nutrients by pumping blood to various parts of the body (732). In this experiment, we are trying to examine heart rate and blood pressure at the reclining and standing position with light exercise. Blood flow throughout valves of the heart can cause pressure changes within the chambers (760). The force applied to the heart’s walls and the pressure in the venous system is blood pressure (793). In determining blood pressure, systolic pressure appears when an artery is stretched to its maximum during contraction of the heart chambers, and diastolic pressure appears when an artery can no longer recoil during relaxation of the heart chambers (794). The top value of blood pressure is the systolic pressure, and the bottom value is the diastolic pressure (794). The reclining blood pressure is usually always lower than standing blood pressure. Light exercise can help people control their blood pressure, but lack of exercise can increase risks of developing cardiovascular disorders (“Physical Activity”). The number of beats per minute equals heart rate (765). To find heart rate, a pulse point must be determined on the body, and the most common are the carotid and radial arteries (795). The rhythmic throbbing of the arterial wall as blood is being pumped is called a pulse (795). By knowing this information about a pulse, we can correctly identify the number of beats per minute. Each heartbeat is different from the next one (Watanabe). Heart rate can vary among people based on their fitness level and the degree of exercise they complete (“Aerobic Exercise”). Different body positions cause the cardiac autonomic drive to change in humans over the course of exercise (Watanabe). This leads to many positive effects on heart rate and blood

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