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8 The effect of different types of exercise on the heart rate of an athlete was investigated - Edexcel - GCSE Biology - Question 8 - 2022 - Paper 1
Question 8
8 The effect of different types of exercise on the heart rate of an athlete was investigated. The athlete counted the number of beats in 10 seconds at the carotid a... show full transcript
Worked Solution & Example Answer:8 The effect of different types of exercise on the heart rate of an athlete was investigated - Edexcel - GCSE Biology - Question 8 - 2022 - Paper 1
Step 1
State how the heart rate was calculated using this method.
Answer
To calculate the heart rate using this method, the number of heartbeats counted in 10 seconds is multiplied by 6. This conversion is done because there are 60 seconds in a minute, and multiplying the count of beats in 10 seconds by 6 gives the total number of beats in one minute.
Step 2
Give two ways of improving the method used to obtain the data needed to calculate the heart rate.
Answer
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Use a heart rate monitor or electronic device to measure the heart rate continuously rather than at intervals, which can provide more accurate and consistent data.
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Take readings more frequently than every 5 minutes during exercise, such as every minute, to capture changes in heart rate more precisely.