Heart Beat Lab

Lab Investigation 7B (Stefan, Milan, Nathan)

Introduction:

In this experiment, my group and I measured blood pressure, beats per minutes (BPM), and recovery time for different levels of exercise. According to the instructions, we had to come up with exercises for three different intensity levels: mild, moderate, and strenuous. Although this is rather subjective, we finally reached a conclusion on what exercises should be performed to reach these levels. The decision is below.

Mild: 10 squats

Moderate: 20 perfect push-ups

Strenuous: Sprint to Lokey main door from Mr. Wong’s classroom

With these different tests, we observed how blood pressure, BPM, and recovery time changed for Stefan and I. For example, after performing 10 squats, I measured Stefan’s blood pressure and BPM. After, these results were compared to experimentation done at resting heart beat.

Results:

TABLE OF RESULTS BELOW

	Resting	10 Squats	20 Pushups	Sprinting
Milan	Pressure = (103/85) BPM = 70 Recovery = N/A	Pressure = (109/84) BPM = 85 Recovery = 45 seconds	Pressure = (108/80) BPM = 118 Recovery = 1:30 minutes	Pressure = (120/82) BPM = 145 Recovery = 4:53 minutes
Stefan	Pressure = (118/73) BPM = 76 Recovery = N/A	Pressure = (114/75) BPM = 81 Recovery = 40 seconds	Pressure = (120/81) BPM = 113 Recovery = 1:25 minutes	Pressure = (126/78) BPM = 139 Recovery = 5:15 minutes

GRAPH OF RESULTS BELOW (INSTRUCTIONS ONLY ASKED FOR BPM)

X axis = Intensity of Exercise (0 = resting, 1 = mild, 2 = moderate, 3 = strenuous)

Y axis = Beats per minutes (BPM)

Conclusions:

Based on the graph and resting time, the difference between data obtained from Stefan vs. Milan is barely noticeable. The resting BPM is somewhat different, but after, the graphs are very close to one another. This was probably just a lucky coincidence, due to the fact that Stefan and I are the same age and almost the same weight. However, the blood pressure yields different results. For me, the systolic number increases, while the diastolic number decreases. For Stefan, the systolic number begins to decreases but then increases, while the diastolic number increases but then goes down. These are some interesting observations that could show a possible relationship between systolic and diastolic numbers.