anyone got the low down on heart rates.i'm thinking more in a medical way here.
i've always had a high max heart rate,i was 203 when i was 40ish and a couple of years ago (aged 51) when fitter it was over 190.i went for a 3 hour ride on new years day not having ridden much for the last couple of months and i had a average h/r of 147 and a max of 186.i was wondering if this was just as a result of being fat and unfit and it being -2 or could it be a sign of some underlying medical condition causes my heart to have work this hard.
