Comparing resting pulse to pulse after activity

Sophomore (College 2nd year) ・Biology ・APA ・2 Sources

Comparing resting pulse to pulse after activity

Independent Variable: Is the exercise

Dependent Variable: Pulse

Control: Resting pulse

Hypothesis: The pulse will be greater after physical activity.

Materials and Methods:

Pulse monitor, timer, pen and paper


An experiment was once conducted in a period of three days. Using a pulse screen on the first day, measurement of the pulse was taken in a minute whilst the body was at relaxation and the recordings were labeled as R1. The following day the procedure was once repeated where a timer was set for one minute, and the pulse display used to test the rate of the pulse for a minute whilst the body was at rest and the recording was taken as RE. The second experiment was carried after a strenuous exercise, and the record was labeled as E2. The third day the same procedure was carried with recording being labeled as R3 and E3.


In the first day of the experiment, the pulse monitor recorded that 89 pulses were observed per minute when the body was at rest. After an exercise, the pulse monitor indicated that the pulse rate had double to 138 pulses per minute. In the second day, the pulse monitor reported that there were 85 pulses per minute when the body was at rest. After an exercise, the pulse monitor indicated that pulses had double to 136 pulses per minute. In the third day, the starting pulse rate when the body was at rest was 91 pulses per minutes. After an exercise, the pulse rate doubled to 145 pulses per minute.


The data collected from the experiment supports the hypothesis since the hypothesis states that the pulse will be higher after physical activity. The result found in the experiment was similar to the results that were fund in the investigation that was conducted by (LeBrasseur 827). It is correct to conclude that there is an increase in the pulse rate of a body once a person has undergone through a strenuous exercise hence the reason as to why there was a higher indication of pulse rate on the pulse monitor after exercise.


After the body has gone through a strenuous exercise, a lot of energy is used, and hence the body needs to generate energy for the basal metabolic rate and other activities. One of the raw materials for the production of energy in the body cells is oxygen. After an exercise, blood needs to be highly oxygenated and to accomplish the whole process of oxygenation; it has to circulate the lungs as fast as possible. The heart being the pacemaker, it increases its rate of pumping so that there is a higher amount of blood that flows through the lungs to be oxygenated for more energy production. As a result of pumping more blood via the lungs, the pulse rate of a body is seen to be doubling the speed of blood flow also increases so as to overcome the oxygen debt that was lost during exercise (Haldane 18). In this case, a person will be feeling tired until there is enough oxygen in the blood that is used to generate another energy that will assist the body to recover strength.

Work Cited

Haldane, John Scott. Respiration. [Place of publication not identified]: Theclassics Us, 2013. Print.

LeBrasseur, Nicole. "Genes Pulse with Activity". The Journal of Cell Biology 173.6 (2006): 827-827. Web.

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