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You cannot exceed your maximum heart rate (MHR). Some literature suggests a simple formula to determine MHR, however these guidelines are only a basic starting point. Your personal MHR will depend on many factors, including age, sex, and importantly, strength of your legs.

If you observe a heart rate higher than the point you believed was your maximum, your MHR should be adjusted to reflect the higher number.

1) Robergs R and Landwehr R., "The Surprising History of the "HRmax=220-age" Equation". Journal of Exercise Physiology 2002;5 (2): 1-10

2) International Journal of Sports Medicine, January 2008

3) Medicine and Science in Sports and Exercise, May 2007

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13y ago
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15y ago

In Humans your maximal heart rate is about 200 BPM. You cannot go above your maximal heart rate so the heart rate would only beat at a maximal rate of about 200 BPM. However with people with diseased hearts their hearts can speed up to higher heart rates than 220 however this occurs in diseased hearts. Heart rates can occur up to 600 BPM. It can causes heart damage, inchemia heart disease- very low cardiac output and coronary blood flow, fibbrilation.

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16y ago

Your heart rate is always higher during excercise. If there's discomfort or shortness of breath, see your doctor.

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Q: What happens when your heart works too hard?
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