LABORATORY REPORT (Click on the Save a Copy button on the panel above to save your report) Activity: Name: Instructor: Date: Effect of Exercise on Arterial Pressure and Vascular Resistance Abbie DeBerg Ms. Brantley May 30, 2012 Predictions 1. During exercise increase. 2. During exercise decrease. 3. During exercise increase. Materials and Methods 1. Dependent Variable HR, SV, BP 2. Independent Variable level of activity 3. Controlled Variables age, gender 4. Identify one variable that was not controlled in this study (not dependent or independent variables; hint: think aboutpossible differences between subjects). weight? 5. SVR was calculated using values for BP, CO, and HR. What instrument was used to measure each of the …show more content…
Deacreased vascular resistance and increased arterial pressure causes an increase in blood flow. This is important to supply organs with oxygen. 4. 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 with supporting data from your experiment. MAP would increase due to increase in activity, SVR would decrease due to decrease in resistance, CO would increase due to more force of blood being expelled. Application 1. Calcium channel blockers, a type of anti-hypertensive drug, block the entry of calcium into smooth muscle which causes smooth muscle to relax. Explain how this decreases blood pressure. This dialates arteries and arterioles and slows cardiac conduction. 2. Explain why cutting an arterial vessel will cause a greater loss of blood over the same amount of time than cutting a venous vessel. There is more force expelling blood inan arterial
The artery’s purpose is to carry blood away from heart at high pressure. An artery is adapted for its role because the artery
Breathing Rate 2.6 2.9 3 2.8 TV(L) 2.9 3 2.9 2.9 Resting Values ERV(L) IRV(L) 3.9 4.3 4.3 4.2 5.5 5.9 5.9 5.8 RV(L) 3.4 3.6 3.7 3.6 Breathing Rate 2.2 2.3 2.3 2.3 TV(L) 4 4.3 4.4 4.2 Exercising Values ERV(L) IRV(L) 5.6 5.9 6 5.8 6.2 5.3 6.7 6.1 RV(L) 42.2 50.2 49.5 47.3
Blood pressure rises – arteries constrict blood to the visceral area and skin, sending the blood to the extremities for maximum muscle effort.
The purpose of arterial pressure and the pulse lab is to determine the effect of posture and exercise on systolic and diastolic pressure and the heart rate. And also in order to find the differences in the reading taken under these condition compares to the baseline reading. The Sphygmomanometer and stethoscope are used to measure the systolic and diastolic blood pressure, counting the beat on the radial artery will give the reading for pulse rate and by using the lab scribe software and IWX214, the blood pressure will be measured. In the heart, the aorta and the carotid arteries have baroreceptors and the chemoreceptors that identify the changes in arterial pressure and the changes in
Exercise is a strong influencer of both heart rate and blood pressure. Isometric exercise, or exercise that involves muscle contraction but not movement, moderately increases the demand for oxygen in the skeletal muscles. Dynamic exercise, or aerobic exercise involving movement, greatly increases the demand for oxygen in skeletal muscle. Both of these exercise types lead to increase in both systolic blood pressure and heart rate to increase blood flow to the active tissues
Capillary beds in your muscles enlarge and deliver more than twelve times as much blood to occupied muscles throughout exercise. Your blood pressure escalates during exercise because larger quantities of nutrient-rich blood flowing through your circulatory system upsurge pressure inside the blood vessels. The cardiovascular system reaps a numerous benefits from regular exercise which can help you live a healthier and longer life. Any form of aerobic exercise such as: swimming and running to dancing or skateboarding, can play a significant role in strengthening the cardiovascular system.
In this experiment, the controlled variables were the age of the person, length of experiment,
Blood pressure is the amount of force and blood being pumped by the heart throughout the body. It is associated with the size and flexibility of the walls of the arteries and the body’s heart rate. The heart beats more rapidly after strenuous exercise, causing the BPM and the blood pressure of the body to increase. Blood pressure increases during exercise because the force of each of the heart’s contractions increases. More contractions means that more blood is pumped with each beat, causing an increase in blood pressure. However, after a period of rest, the heart rate returns to normal and along with that, the blood pressure. The blood vessels become larger as a result and allow the flow of blood to increase. As a result, there is no excess
Chronic responses to the cardiovascular system: Increase in stroke volume: When the size of the heart increases, the blood capacity inside the heart also increases because it stores more blood. This means that the stroke volume can increase. Increase in cardiac output: Cardiac output is the amount of blood pumped by each ventricle per minute. Cardiac output increases 5 to 7 times which means more oxygen can get to the muscles. The bigger the cardiac output depends on how much the stroke volume and heart rate increases.
Blood flow is increased due to rise in the levels of nitric oxide which greatly expands the blood vessels, thus aiding vigorous exercise and post-exercise recovery1.
The heart rate increases as activity intensity in the body increases. The cause of this increase in heart rate is due to the working tissues in the body increasing their need for oxygen and nutrients. The heart needs to pump faster to supply the tissues with an adequate amount of oxygen and nutrients needed for the muscles (Tortora & Derrickson, 2014, p. 716). During the increase of activity levels in the body and rise of heart rate, blood pressure is additionally effected because of the increased need of oxygen flow to tissues in use and cardiac output directly affects blood flow (Tortora & Derrickson, 2014, p. 741). Therefore the main focus of this report will be discussing the two main concepts of the effects of increased intensity of exercise on heart rate and blood pressure.
During exercise the blood pressure will increase because the muscles will need more oxygen to use if more exercise needs to be done. As the muscle continues to work, the heart rate must also increase to make sure that enough blood is being pumped around every part of the body. This would mean that systolic pressure increases because of the pressure in your heart when the muscles contract. In the other hand the diastolic pressure should be the same so there should be little or no changes to the pressure. This is because the blood vessel like the arteries become dilated so any heat can be exerted or escape.
Is a condition where your blood pressure is higher than normal. Frequent exercise can help reduce it. The body needs a set amount of blood when resting preferably around 5 litres per minute when the amount of blood ejected from the heart increases. Regular exercise of cardio vascular disease of hypertension because the heart is more efficient of pumping blood around the body reducing high blood pressure.
The effects of exercise on blood pressure, heart rate, respiration rate and electrical activity of the heart were assessed. The measurements of respiration rate, pulse rate and blood pressures were noted as described in Harris-Haller (2016). Data was first taken from subjects in a relaxed position and then followed by sets of reading after exercising based on one minute intervals. The data also noted sitting ECG traces from Harris-Haller (2016). The respiratory rate, pulse, blood pressure, P wave, QRS complex and T wave were defined for each subject. The class average was calculated for males and females and graphed to illustrate the results by gender for each cardiopulmonary factor.
Blood pressure is the force exerted by circulating blood against the walls of blood vessels and usually refers to the arterial pressure of the systemic circulation. Blood pressure is routinely regulated in order to direct appropriate amounts of nutrients and oxygen to specific tissue types. For example, when exercise requires additional supplies of oxygen to skeletal muscles, blood flow to these muscles increases, while blood flow to the digestive organs decreases. Blood pressure can be altered in numerous ways, such as varying cardiac output by changing heart rate or stroke volume, or by changing the resistance to blood flow in the blood vessels. Altering peripheral resistance in the blood vessels is achieved by vasodilation or vasoconstriction, or also by changes in blood viscosity or blood vessel length. The cardiac center stimulates cardiac output by increasing heart rate and contractility. These nerve impulses are transmitted over sympathetic cardiac nerves. The cardiac center inhibits cardiac output by decreasing heart rate. These nerve impulses are transmitted over parasympathetic vagus nerves. The cardiovascular center obtains information about the body’s status through baroreceptors and chemoreceptors. Baroreceptors are sensory neurons that monitor arterial pressure. Major baroreceptors are located in the carotid sinus, the aortic arch, and the right