Why would a low heart rate run feel like a frustratingly exhausting, all stops out, thumping great effort?!
Program : 14km with heart rate @ 113 (76%) after 2km warm-up.
I did the 2km warm-up on the grass in Renwick Soccer Field & decided to stay there - for as long as I could stand it! - going round & round to see if I could keep HR at 113 on a flat surface. Even there, it was all hard work & I felt I was having to make too much of an effort for what I assumed should be a fairly comfortable pace.
At the end of 7km, I went out onto the road where I thought it would be easier with some downhills thrown in! The downhills were OK, but the rest of the run just kept getting tougher & tougher. It felt like running flat out to stay with a low heart rate! This doesn't sound right to me, but then obviously, I know very little about HR running & I've asked Ewen to tell me where I'm at or going!.... Track tomorrow.