59 Miles, first dry day with temps over 40°. Just finished reading Leonnard Zim's "Haywire heart", panicked and searched everywhere for my heart rate monitor, bought new batteries for it and went out. I rode over 4 hours at close to 100% of my aerobic max, and the readings were from 185 to 211 BPM. Now after a half hour rest it's fluctuating between 124 and 130 BPM. I have no clue what that means, I'm sure nobody does. I'm 68, ride fairly hard 50-55 miles every other day when the weather is good. Rode over 6K miles last year, been riding 25+ years. Also I have constant A-Fib. I had a cat-scan last week showing 0 plaque, Dr said I have the heart of a healthy 30 year old. A bunch of interesting but useless information, Only thing it shows that that "Your age-80 is your max heart rate" is nonsense.
Last edited by John00; 02-16-18 at 09:38 PM.