Resting Heart Rate
I have been doing a bit more distance lately in preparation for the zurich swim in August. My sets are normally a 25km in the pool followed by a 10 to 15km set the next day, so am averaging close to 100km per week. As a result, I guess I am getting fitter, but wanted to know if my resting heart rate is abnormal? I am currently sitting on between 38 to 40 beats per minute. Is this normal? Would like to get a poll going for other people who are reasonably fit and doing distance to double check that I don't have some sort of condition that is dropping my heart rate to this level.