i have recently worked out my maximum heart rate - 220 - age = 182. apparently this rate could only be maintained for short periods until i do myself a damage.
so ive been on a fitness programme now for about 6 weeks. part of this involves running on a treadmill for at lease 20 mins.
over the course of 6 weeks my speed has increased, and though i am finding it hard i never feel like im overdoing it, so it was a shock to find out my heart rate while running is 172, thats about 95% of the maximum, for 20 mins.
is this over training? am i going to do myself a damage if i keep this up?
help much appreciated, thanks in advance.