Effect of Exercise on Cardia Output Essay

Predictions1. During engagement HR impart summation. 2. During recitation SV will decrease. 3. During exercise CO will ontogeny.Materials and Methods1. Dependent Variable EDV, ESV, and cardiac motorcycle space 2. Independent Variable level of physical activity(resting or exercise) 3. Controlled Variables age, weight, line of longitude 4. What instrument was apply to measure cardiac volumes? MRI 5. Does the instrument used to measure cardiac volume use X-Rays? Explain. noResults Table 2 Resting and Exercising cardiac Cycle Length, EDV, and ESV Resting value Exercising Values Cardiac EDV (mL) ESV (mL) Cardiac EDV (mL) ESV (mL) cycle length cycle length (msec) (msec) 856 145 72 431 139 34 809 136 66 457 141 38 828 135 72 414 140 35 139 70 140 36 beat 1 Subject 2 Subject 3 AveragesResting and Exercising HR, EDV andESV1. Resting and exercise cardiac cycle length -a. What was the average resting cardiac cycle length? 831 b. What was the average practice session cardiac cycle le ngth? 434 c. The concatenation of shape resting cardiac cycle length is between 818 and 858 ms. Did average cardiac cycle length improver, decrease, or not potpourri with exercise? Decrease2. Resting and exercising EDV -a. What was the average resting EDV? 139 b. What was the average exercising EDV? 140 c. The domain of normal resting EDVis between 135 and 145 ml for these subjects. Did average EDV increase, decrease, or not interpolate with exercise? not change3. Resting and exercising ESV -a. What was the average resting ESV? 70 b. What was the average exercising ESV? 36 c. The range of normal resting ESV is between 65 and 75 for these subjects. Did average ESV increase, decrease, or not change with exercise? decreaseTable 3 Resting and Exercising HR, SV and COHR (strokes per second) 70 74 72 72 Resting Values SV (mL) SV (L) 73 70 63 0.073 0.07 0.063 0.069 CO 5.1 5.2 4.5 4.9 HR (strokes per second) 139 131 145 138 Exercising Values SV (mL) SV (L) 105 103 105 0.105 0.103 0.10 5 0.104 CO 14.6 13.5 15.2 14Subject 1 Subject 2 Subject 3 AveragesResting and Exercising SV and CO4. Resting and exercising HR a. What was the average resting HR? 72 b. What was the average exercising HR? 138 c. The range of normal resting HR is between 70 and 73 beats per spot for these subjects. Did average HR increase, decrease, or not change with exercise? increase5. Resting and exercising SV -a. What was the average resting SV? 69 b. What was the average exercising SV? 104 c. The range of normal resting SV is between 60 and 80 ml for these subjects. Did average SV increase, decrease, or not change with exercise? Increase6. Resting and exercising CO a. What was the average resting CO? 4.9 b. What was the average exercising CO? 14 c. The range of normal resting CO is between 4.2 L per minute and 5.84 L for these subjects. Did average CO increase, decrease, or not change with exercise? increaseDiscussion1. What caused the change in HR with exercise? Muscles use much type O and  glucose from the profligate with increase movement. This produces wastes that decrease blood pH below the normal range cause an increase in core rate. The heart rate increase delivers blood to the lungs and kidneys more quickly so these organs can remove the wastes from the body. The fast-breaking the muscles use energy and create waste, the faster the heart must gist blood.2. Discuss the effect of venous return and heart rate on exercise EDV. Exercise increases venous return by forcing your body to tally and enlarge blood vessels. In addition to circulatory improvements, exercise helps muscles and tissues vex conditioned to allow them to overcome the stresses of working out. During exercise, the body demands additional atomic number 8 and requires removal of extra carbon dioxide increasing the heart rate. EDV is increased with exercise 3. What caused the change in ESV volume with exercise? ESV decreases with exercising so that in that respect is less resistance for th e blood to flow to increase cardiac output. 4. wherefore did SV change with exercise? SV increase during exercise because an individuals body needs more oxygen and nourishment that are both received from the pumping of blood.The level of increase of SV is also depends on the type of exercise 5. Discuss the importance of the change in CO with exercise? When the body is in rest cardiac output is lower as the demand in oxygen is low. During exercise heart rate and stroke volume increase which results in an increase in cardiac output 6. Restate your predictions that were correct and give data from your experiment that support them. Restate your predictions that were not correct and correct them, enceinte supporting data from your experiment that supports your corrections. My prediction were correctApplication1. We heedful the stroke volume of the left ventricle. What was the average stroke volume of the aright ventricle at rest and after exercise? 69 resting 104 exercising 2. Assum e that for one beat, the stroke volume of the left ventricle is greater than that of the right ventricle. Explain why in a normal heart this would be corrected on the next beat. blood would be transferred from your general circulation into you pulmonary circulation.Pressures throughout your pulmonary circulation would begin increasing. As soon as small amount of blood is transferred from the systemic to pulmonary circulation, the pressure in the pulmonary veins and left atrium increases a little. This increases the filling of the left ventricle, and the resulting increase in its end-diastolic volume increases the stroke volume, correcting the problem 3. Explain why elite athletes contribute a lower than normal heart rate, yet have a high than normal ability to increase cardiac output. An athlete has a larger stroke volume, which means a greater volume of oxygen is delivered to the body per heartbeat.They usually have larger heart that results in higher cardiac output, as more blood is pumped out with each(prenominal) beat. The raised cardiac output allows the heart to beat more slowly