Quote:
Originally Posted by frankotank
OK…..alnorth….I really hope you are a young dude talking about heart rate of 170….either you are young or I have my heart rate calculation way off! I need to know if I’m doing this right. Very important!
I have been using this formula…..220 – age times .65 for low end and 220 – age times .85 for high end. I’m 47. My low end is 112 and my high end is 147. I frigging LIVE in the 150’s. I just can’t help it. Am I calculating this right???
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Yep, definitely younger than you. During the insanity workouts, I'm mostly in the 160's or low 170's. A normal workout or weightlifting routine is supposed to get you around 60% to 80%, but from reading around, there's almost no chance of staying under 75% or 80% while doing insanity without really long breaks, so I'm just trying to stay under 92%-ish or so.
(Also, this is probably only interesting to math nerds like me, but the traditional 220-age formula which became really popular is apparently thought to be not the most ideal formula. Some researcher just threw that out there years ago as a rough estimate and heart rate monitor companies just took it and ran with it. There's a lot of other more complicated formulas out there, one that was created a few years ago is calculated as: 163 + (1.16 x age) - (0.018 x (age^2)), but 220-age still gets you pretty close to that.)