Holland Clinic Maximum Heart Rate Calculator
Online Maximum Heart Rate Calculator
Based Upon the University of Oakland's Non-Linear Equation

Note: This number is NOT derived from the "Fox and Haskell Formula"
(HRmax = 220 - Age (yrs)), but from the following equation developed at
Oakland University:

HRmax = 191.5 - (0.007 [age Squared])


HRmax = 191.5 - (0.007 x age x age)
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