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# Measuringheartrate

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### Measuringheartrate

1. 1. MEASURING HEART RATE YEAR 8 – BODY SYSTEMS
2. 2. AIM & HYPOTHESIS Aim: • To examine the effect of activity on heart rate Hypothesis: • (Write your hypothesis here)
3. 3. EQUIPMENT • a watch or timer • graph paper or graphing software
4. 4. RISK ASSESSMENT Risk Injury Prevention Fill out a risk assessment for your experiment
5. 5. METHOD 1. Find your resting pulse rate (pulses per minute), while standing, by counting the number of pulses in 15 seconds and multiplying the result by 4. Do this three or more times and average your results. Write down your average resting pulse rate. 2. Gently jog or run on the spot for 3 minutes. (Don’t overdo it!) Stop and immediately measure your pulse rate.
6. 6. METHOD 3. Keep resting and each minute measure your pulse rate until it doesn’t get any lower. Record all your results in the table below. 4. Draw a line graph of your results and determine the effect of exercise on heart rate.
7. 7. RESULTS • Average Resting Pulse:______________________ Time after end of jog (minute) 0 1 2 3 4 5 6 7 8 Pulse rate (per minute) • Use Google Spreadsheets to create your graph and paste it here. 9
8. 8. DISCUSSION 1. Construct a line graph for the results in your table. 2. State how long your pulse rate took to return to normal. 3. Describe why exercise will effect your heart rate. 4. Compare your results with those of classmates. 5. Account for any differences in results.
9. 9. CONCLUSION Write a conclusion for your experiment here.