Affects of Physical Activity on the Heart Rate And Blood Pressure Essay

PurposeThe lab prepared will teach you how to measure note impel. Learn where systolic and diastolic rack begins. Next observe venous return, inwardness rate, and production line thrust in three different scenarios including practice range, resting rate, and change magnitude exercise.ResearchIn the circulatory system lab, students spy how material activity affects blood twinge and heart rate. With a partner, one students insisting was recorded at basal (normal) rate, lying down, and after exercising. Normal blood oblige is systolic great hundred and diastolic 80. A normal heart rate is 60 centralises per minutes. Systolic pressure is the pressure of blood during contraction and would be considered as the maiden extort of the stethoscope. Diastolic pressure is the pressure in the blood vessels in between heart overcome at a relaxation point and would be the last twitch before the strikele drops completely on the stethoscope.These points are considered as lub & dub. Lub or S1 is the set-back heart beat and the closing of the tricuspid & bicuspid valves. The due south heart beat, s2 is dub, the closing of semilunar valves. Blood pressure and heart rate increase after physical activity due to the fact that the body uses more type O and releases high volumes of carbon dioxide. In our experiment the test subject needed more oxygen small-arm exercising. The 25 jumping jacks preformed increased blood pressure and heart rate. If the test was preformed on a different test subject results may change, depending onbody mass, weight, height, male or female.HypothesisIf physical activity increases, then blood pressure and heart rate will rise.MaterialsStethoscope Test subject settle Administer Sphygmomanometer (Blood pressure cuff)ProcedureSee Lab 4 The Circulatory System 2013 eScience Labs, LLC, 10/21/2014.Data/ResultsTable 2 Blood drive and Pulse ReadingActivityBlood Pressure(mmHg)Systolic/DiastolicPulse(beats/minute)Basal (Normal) great hundred/7 560Lying down120/6056After exercise140/8068Lab Questions1. What is systolic pressure?Systolic blood pressure is the pressure when the heart ventricles contract and pump blood out of the heart. This is the highest pressure in the blood vessels.2. What is diastolic pressure?Diastolic pressure is the pressure between heart beats when the heart ventricles are resting and filling with blood. This is the lowest pressure in blood vessels3. Why is pressure a sensible reading to circulatory health?Because through pressure, people can determine how much blood are pumped out of the heart in a single contraction. A person with a healthy circulations blood pressure should be at the normal level.4. Explain the lub-dub sounds of the heartbeat?Lub-Dub is the first and second heart sounds that are clearly heard with a stethoscope. These sounds are the closing of the heart valves. The first heart sound, know as lub starts when the ventricles contract. The atrioventricular valves are closed and the bl ood is pumped out of the heart. The second heart sound, known as dub, starts when the ventricles relax. The semilunar valves are closed and the ventricles are filled.5. Why do blood pressure and heart rate change after exercise?The muscles in the body need more oxygen during exercise. The heart then pumps more blood to the lungs for gas exchanging. Since the heart need to contract harder, the blood pressure and heart rate will be increased.6. How might the results in Table 2 change if someone else performed the activities? Why?The results in Table 2 would be lower or higher if someone else performed the activities because the sex, height, weight, and health could also affect the results.7. Why is it important for blood to flow in just now one direction?Every part of human body needs oxygen in vagabond to perform works properly. Oxygen-rich blood supplies oxygen needed to every part of the body and oxygen-poor blood needs to flow to the lungs to exchange gas. If blood flows backwa rd, the body will not get the oxygen it needs to obtain normal homeostasis therefore it will be under a serious threatening.Conclusion/DiscussionIn this experiment, we saw that the blood pressure and heart rate significant increased after the subject exercised. From panel 2, we saw that the blood pressure increased from 120/75 to 140/80 and the pulse increased from 60 beats /minute to 68 beats /minute after exercised. The rate of blood pressure and pulse were lowest when the subject lied down, which only 120/60 mmHg for blood pressure and 56 beats/minute for the pulse. Since the blood pressure and heart rate raised as body course increased, we concluded that this is a statistically significant result.TheoryBlood pressure measurements generally reflect arterial blood pressure. The high and low points of blood pressure are expressed in millimeters of mercury (mmHg). The normal blood pressure in healthy individual is 120/80(mmHg). Blood pressure is usually mensurable with the sphygm omanometer (blood pressure cuff) which normally composed of a cuff with an inflatable bladder and a mechanical manometer with a rubber bulb.