Exercise And Heart Rate Essay

Introduction: In this experiment, cardiovascular fitness is being determined by measuring how long it takes for the test subjects' to return to their resting heart rate. Cardiovascular fitness is the ability to "transport and use oxygen while exercising" (Dale 2015). Cardiovascular fitness utilizes the "heart, lungs, muscles, and blood working together" while exercising (Dale 2015). It is also how well your body can last during moderate to high intensity cardio for long periods of time (Waehner 2016). The hypothesis is that people who exercise for three or more days will return to their resting heart rate much faster than people who only exercise for less than three days.

Two intervals did show a significant shorting post exercise. Besides the RR interval, the other recorded interval which contained a marked shortening after exercise was the TP interval. To understand why the TP interval is shortened when the heart rate increases and lengthened when the heart rate slows, one must first understand what the TP interval is. The TP interval, which is the the interval between the end of the

Exercise increases heart rate by a process of sympathetic autonomic stimulation. Sympathetic (adrenergic) nerves increase the excitability of the sino-atrial node and reduce the P-R interval .As exercise continues, the physiological changes in the body are continuously monitored by a number of physiological systems and the balance of activity of the sympathetic system (speeding up) and the parasympathetic system (slowing down) is constantly adjusted. When exercise is over, the heart rate does not drop immediately as the body has to undergo a period of re adaption to return to the resting state.

The authors then share their analysis on the changes of heart rate and GSR at the many different points throughout their study.

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).

They both have a negative correlation but we can see that there are more heart beats straight after strenuous exercise and after moderate exercise on Sara and Jonathan’s results. However, that is not so when looking at my results. This may mean that my results may be incorrect.

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.

In conclusion, this experiment was successful. The purpose of the experiment was to observe the change in heartbeats per minute before and after a physical activity, in this case, ten jumping jacks. As predicted, the data proved that the hypothesis was correct because you can clearly see in the graph that the heart rate after exercise was higher. One point that I noticed from the data was that the ten jumping jacks affected the subjects differently. Subject two’s heart rate after exercise was significantly higher than subject one’s. Subject one’s heart rate increased only slightly; whereas subject two’s heart rate increased significantly. This experiment is a good basis for additional testing involving heart rates and exercise. If this investigation

Research Question: What is the effect of practicing aerobic sports on a daily basis, on the recovery heart rate of people?

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 subjects were divided into groups of women that exerted low, medium, and high exercise levels and a controlling group. The number in each of them was: Control – 393, Low Exertion – 82, Medium Exertion – 309, and High Exertion – 61. The exertion levels were evaluated independently for each woman based on the amount of exercise needed to get the heart level to 80 percent of maximum and remain there for 20 minutes. The exercise sessions consisted of a warm-up period using a treadmill or stationary bicycle, weight lifting exercises focusing on the back, arms, legs, and abdomen, and a one-

Good physical health is a vital part of the well-being of every person. A major component of our physical health is “Cardiovascular fitness”. Cardiovascular fitness is the ability of the heart and lungs to provide oxygen to the muscles for activity of an extended duration. If we have a good level of cardio-vascular fitness we are able to sustain activity for a reasonable period of time and not fatigue easily. This can give individuals a variety of health benefits and allow more regular and enjoyable activity to be participated in. This research report will examine my results of cardio-vascular fitness tests and weekly physical activity events, which

As the intensity of exercise increased, so did the rates of the heart and breathing. After a small period of rest, the heart rate and breathing rate both decreased to a point close to their resting rate. This proved the stated hypothesis. First, the hearts average resting rate was recorded to be 76 bpm. The heart is therefore transporting oxygen and removing carbon dioxide at a reasonably steady rate via the blood. During the low intensity exercise (Slow 20) the heart rate increases to 107 bpm, which further increases to 130bpm at a higher intensity level (Fast 20). The heart therefore needs to beat faster to increase the speed at which oxygen is carried to the cells and the rate at which carbon dioxide is taken away by the blood.

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.

Once the patient returned, she was asked to expose her arm to the middle portion of her bicep, and her wrist and forearm were placed on the laboratory desk. With the patients arm resting on the desk, approximately equal to the patient’s heart level, pulse palpation began. The left radial artery was visually located. The researcher lightly placed an index and middle finger over the left radial artery and began palpation of the radial pulse for fifteen seconds. The pulse rate was calculated by multiplying the total pulse count for the fifteen second duration by four to determine the heart rate. The rate was recorded as the Post-exercise pulse rate.