Movements That Affect Heartrate Experiment

Research into the relationship between physiological variables and running performance has been variable. The aim of this study was to examine the relationship between 5k running performance and a number of physiological variables in a group of 11 trained club runners (Age 21.451.63yrs, Height 175.092.77cm, Weight 67.865.12kg). The athletes underwent a laboratory treadmill test to determine their maximum oxygen uptake (VO2 max) and running velocities at lactate threshold (v-Tlac) and blood lactate concentration of 4mM (v-OBLA). Running performance was determined by a 5k time-trial on an athletics

There were two intervals remained constant between at rest and after exercise, the PR interval and the RT interval (there was a clinically insignificant 0.01 second increase in the RT interval after exercise, however I suspect this was likely due to measurement error error rather than an actual increase).

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 range of normal resting systolic BP for the subjects in this experiment is 115-125 mmHg. Did systolic BP increase, decrease, or not change with exercise?

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).

Being knowledgeable about the heart is very important, especially if one is an athlete. This experiment is significant, because it can tell us how important it is for one to keep their heart healthy. It will also tell us how playing a sport can benefit one’s health and the well being of their heart. Our hypothesis says, if the athleticism of a person increases, then the heart rate recovery time will decrease when heart rate recovery in a function of athleticism. The purpose of this project is to see which type of athlete, or non-athlete has the best heart function.

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 minute for these subjects. Did average HR increase, decrease, or not change with exercise? increase

8) Make a graph of heart rate and breathing rate (please put both sets of data on the same graph) versus time after exercise. (from lab paper)

Also seen in the graph, we can see that Jonathan’s results have a rogue showing that his pulse rate dipped a lot but then proceeded to decline steadily and mine also has a rogue where my pulse rate dips a lot straight after exercise too.

When someone who exercises a lot such as a person that does sports the pulse rate level rises much less than in a person that doesn’t exercise a lot or does sports. You can check your heart by taking the tips of your first two fingers to press gently over your blood vessels on your wrist count your pulse for 10 seconds and multiply by 6 to find your beats per minute. You want to stay between 50percent to 85 percent of your heart rate. That is how you check your pulse.

Method and results - The study was compiled of seven female students from the University of Huddersfield. For the exercise a step was used, a polar heart rate monitor was used for each participant with an independent assessor timing the participants, and recording the readings. Results of the study showed there was an increase in heart rate when performing mild exercise.

The heartbeat: the heartbeat at rest, a regular heart beats about 50 to 99 times a minute. Exercise, fever and emotions can make the heart to beat quicker, occasionally to well around 100 beats per minute. The heart rate slows down when you stop running. The pulse after two minutes of running is named the "recovery heart rate," and that rate will lower as you develop to be more fit. The actual numbers vary because everyone's heart rate varies--even between similar people at similar fitness levels. In some people, the heart rate remains elevated after exercise, and electrical pulses from the heart are irregular. In this experiment an investigation was made to test if getting a fit and a unfit person to run 4 laps of the basketball court, what

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.

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].