Maths and Stats by Email | Correlating heart rates

Maths and Stats by Email | Correlating heart rates: "Have you ever measured your heart rate? Your heart rate is the number of times your heart beats per minute.
When you’re exercising, your muscles need more energy. To get more energy, oxygen is needed from the blood, so your heart rate increases to pump more blood. Regular exercise can improve your heart strength, so it’s more efficient and doesn’t need to beat so often when you’re not exercising. But fitness isn’t the only thing that can affect your heart rate.

The lowest recorded resting heart rate is 27 beats per minute. This Guinness World Record was set by Martin Brady in 2005 in the United Kingdom (Guinness World Records 2013). Most people’s heart rates are a lot higher – but there’s a lot of variation. The following table shows some information about heart rates – 90% of people have a heart rate faster than the ‘slowest 10%’ number, and only 10% have a heart rate faster than the ‘fastest 10%’ number."

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