Originally posted by VenusdeVelo
Your max heart rate will drop with age, BUT it is somewhat .

And, of course, we have all heard it before....our best fat-burning zone is when we are in our aerobic heart ranges. (65-85% of our max). Not that we worry about that right? Yeah, right.

Good reads: Sally Edwards: Heart rate Monitor Book
Ed Burke: Precision Heart Rate Training
Phil Maffetone: High Performance Heart
Stu Mittleman: Slow Burn
Each of these authors has more than 1 book out also.
I got the Sally book from the library... excellent! now I just have to do some sub max testing. I was fascinate by her 5 division of HR zones, and the stated percentages of how much fat you burn in each zone.

Irulan