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BBiologyS1 to S4Medicine · Health
Health lab: the heart and exercise
How fast does your heart beat when you run, and how quickly does it recover? Measure the pulse like a nurse and compare fit and less active learners.
LevelS1 to S4 (and IGCSE)
TimeAbout 30 min
You useRates, percentages, graphs
PriceFree: no account
🎯 Aim
To investigate how exercise affects heart rate and how fitness affects recovery.
You will learn to
- Measure the pulse and calculate heart rate.
- Calculate percentage change and cardiac output.
- Explain why heart rate rises in exercise.
- Compare recovery times as a sign of fitness.
🧭 What to do
- Choose Step test (3 min) and Average learner. Tap Start.
- Tap Count the pulse for 15 s at rest, during exercise and during recovery.
- Read the time to return to the resting rate.
- Change the Fitness and the Activity and compare the graphs.
- Answer the questions with the class data.
- Write your conclusion and download your lab report.
📋 The data
Pulse counts (beats in 15 s) of two learners before and after a step test.
🧠 Investigate: answer from the data
Type your answer and tap Check. Use 💡 Hint first; open the method only when you are stuck.
➕ Get more from this experiment
📝 Free
Print the worksheet (button above), download the data, and save your report. Teachers can project this page in class.
📦 Premium Lab Pack
1 000 RWF
- Practical worksheet: pulse and the step test in the class
- Data analysis and fitness questions
- Teacher guide and answer key
- Exam-style questions with marking scheme
👩🏫 For teachers
Use it as a practical when apparatus is missing, as homework, or as a project. Free lesson plans help you plan, teach and assess.
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