How Does Exercise Affect The Heart Rate

The effects of heart rate on differing durations of exercise were studied in this experiment. For people, heart rate tends to increase as they perform physical exercises. The amount of beats per minute gradually increases as people perform physical activities. Heart rates taken before exercise are relatively low, and heart rates taken one minute after exercise increase significantly. Heart rates slowly begin to decrease after they are taken two minutes and three minutes after performing the step test, which is to be expected. The rates of intensity throughout exercise relates with changes in heart rate throughout the step test performed in the experiment (Karvonen 2012). The age of the participants affected the experiment, since the heart rate during physical exercise, in this case the step test, is affected by age (Tulppo 1998).

1. What caused the change in HR with exercise? Muscles use more oxygen and glucose from the blood with increased movement. This produces wastes that decrease blood pH below the normal range causing an increase in heart 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 faster the muscles use energy and create waste, the faster the heart must pump blood. 2. Discuss the effect of venous

The graphs also show that Sara’s heart takes the longest to recover after exercise, followed by Jonathan and then me. This means that from these results, Sara is the most unfit and I am the fittest out of the three of us. Since all three of us did the exact same kind of moderate and strenuous exercise it shows that Sara’s heart is not as used to

During rest or normal physical activity muscles use glucose and break it down to CO2 and H2O to give ATPs (energy) to the muscles to work. This reaction requires oxygen which comes from the blood. Therefore your heart constantly requires to pump oxygenated blood from the lungs to the body muscles and carry back the CO2. the independent variable would be exercise, leaving the heart rate as the dependent variable; thus it is the one that it affected. This lab was to fully understand how the heart is affected by exercise.During exercises, more ATPs are required and hence more glucose is broken down, therefore more oxygen is required. therefore the heart needs to pump oxygenated blood into the muscles faster and Therefore the heart rate increases.

As the heart uses a larger amount of blood, over time the left ventricles adapts and grows. This causes it to hold more blood, and ejects more blood per beat , even when your not exercising, at the same time certain muscles are contracting and relying on type two muscle fibers and the arteries expand each time the ventricles pump blood out from the heart. With that it helps increase the amount of oxygen you breath, which causes a quicker supply of oxygen and helps remove waste from your body.

Aims - This study is to ascertain, if there is an effect on heart rate after exercise. This is being done to see, if there is a difference between resting heart rate and heart rate after performing exercise.

How can exercise impact human heart rate over time? After a while of doing exercise your heart rate will start going down, that’s what I saw. During the first days my heart rate was high but after the weeks went by it started going down a lot. I also saw that you will get really hot and you will start sweating a lot.

1 Heart Rate and Exercise Intensity Kiera Brown Biology 101 Bio101L Increasing your workout intensity, will increase your heart rate. The oxygen in our blood helps contribute to this experiment.

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.

The speed and distance of the run affects your heart rate reading, and how far you should run and be healthy about it (Heather Topham Wood 2015). To find out what your heart rate max should be for men she did 220 minus your age, and for women she subtract 88% of your age from 206. For instance, she said a 40- year- old man will have a maximum heart rate of 180, and a 40- year- old woman will have a maximum heart rate of 171. If you are new to exercise, she says, not to start running at 70 percent of higher of your maximum heart rate immediately. Long intervals of three to five minutes should be run at 95 percent of your max heart rate with short rest periods in- between. Short intervals of no more than 90 seconds can be ran at 100 percent of your max heart rate and should have long rest sessions (Topham Wood, 2015).

The literature on the effects of exercise of cardiac output maintains the idea that exercise should affect cardiac output- pulse rate, systolic blood pressure, diastolic blood pressure, QRS-pulse lag, P-T and T-P intervals, because of increased heart rate. For our experiment, we tested this theory by measuring our cardiac output before and after some rigorous exercise. We measured the individual cardiac output and then combined the data to compose a class-wide data average. We compared the results of the experiment to what we expected, which was that exercise does affect our heart. Our data from this experiment supported the notion that exercise does, in fact, change cardiac output.

Investigating the Effect of Exercise on Pulse Rate Aim: To see what happens to the pulse rate during exercise. Prediction: I predict that the pulse rate will increase in order to take more oxygen for respiration. The heartbeat will increase and become stronger to transport oxygen and carbon dioxide to and from the muscle cells. The breathing rate will increase in order to get rid of the extra waste such as Carbon dioxide. Respiration is the release of energy.

I predict that during exercise the heart and respiratory rate (RR) will increase depending on the intensity of exercise and the resting rates will be restored soon after exercise has stopped. I believe that the changes are caused by the increased need for oxygen and energy in muscles as they have to contract faster during exercise. When the exercise is finished the heart and ventilation rates will gradually decrease back to the resting rates as the muscles’ need for oxygen and energy will be smaller than during exercise.

The heart rate is a measurement of how many times the heart beats in a minute. Physically fit people tend to have a lower heart rate and during intense exercise tend to have lower rates as well. A decrease of heart rate at both rest and at fixed intensity of sub-maximal exercise [7] occurs a few months after an exercise program is begun. One’s heart rate reflects the amount of work the heart must do to meet an increase of demands of the body when engaged in activity. Heart Rate tends to increase proportionally with intensity oxygen uptake [16].

The muscles demand more energy and oxygen due to the increased workload that comes from exercise. This causes the heart rate and respiratory rate to increase in order to provide the required additional fuel to the muscles. In addition, the entire circulatory system works more efficiently due to vascular dilation and cholesterol reduction. By improving the condition of your cardiovascular fitness you are also helping yourself live longer, decrease the risk of heart disease, lower blood pressure, strengthen your cardiovascular system, and the list goes on. These reasons alone could save you from having heart disease.