Running in place
Number of pulses in 15 second
Multiply by 4
Heart Rate (Number of beats in 60 Seconds
2. Which activities increased your heart rate the least?
3. Was the order in which you ranked the activities accurate? (It's good to be wrong!) Explain.
4. What changes did you notice about your heart rate as you became more active?
5. Why do you think your heart rate changed when you were more active? What inference can you make? (Use pages 65–66 of your reference book to help you answer this question.)
The activity that increased my heart rate the most was running in place. The activity that increased my heart rate the least was standing still. The order that I ranked the activities was accurate. I predicted that standing still would be first because it required very little energy. Walking in place would require the next most energy, with pull-ups coming next. After pull-ups I thought jumping jacks would increase my heart from all of the jumping up and down. Lastly would be running in place as what would make my heart increase the most. I noticed that as the activities got harder it took more energy to do the task. Each one required more energy than just standing still. The inference that can be made is that as the muscles work harder the heart pumps faster to deliver oxygen-rich blood to hard working muscle cells. Further the blood removes the waste from these cells.