What Makes a Heart Beat Faster?

Only available on StudyMode
  • Download(s) : 591
  • Published : March 18, 2012
Open Document
Text Preview
Activity 2.3.1

What Makes A Heart Beat Faster?

The Problem:
How does physical activity affect your heart rate?
Introduction:
In this experiment you will be jumping rope to figure out how physical activity affects your heart rate. You will be using jump ropes to see how much of your heart rate has changed. The purpose of this experiment is to see if different activities make change in the way your heart beats. For example this experiment will test the rate at which your heart beats. Hypothesis:

If people jump rope for different amounts of time then your heart rate will increase because physical activity increases your body’s ability to produce more blood causing your heart to work faster. Variables:

Independent Variable: jumping rope
Dependent Variable: heart rate
Control: resting heart rate
Design:
Materials:
1. Stop watch
2. Jump rope
3. Partner
4. Recording Sheet
Safety Concerns:
1. No horse play!
2. Watch out for people behind you before you start Jump roping. Environmental:
When performing this experiment you must be sure that no one is behind you and that when you are jumping you are in an area that is free from clutter.

The Experiment:
1. Take your resting heart rate and record it on a separate sheet of paper 2. Have your partner time you and begin jumping rope for 30 secs 3. Use your stopwatch to stop yourself at 30 sec

4. Record your heart rate in a chart after 30 sec
5. Repeat step 1
6. Begin jumping for 1 min
7. Have your partner stop you at 1 min
8. Record your heart rate in a chart after 1 min
9. Repeat step 1
10. Begin jumping for 1 min and 10 sec
11. Have your partner time you and stop you at 1 min and 10 sec 12. Record your heart rate in a chart for 1 min and 10 sec. 13. Repeat steps 1-12 two additional times
14. When finished with one person have your partner complete steps 1-13 15. Record any observations you see that might help you conclude the...
tracking img