[QUOTE=creaky;491303]
Quote Originally Posted by Twister View Post
Although I'm finding myself quite sceptical about it I've been following the Maffetone approach last winter during the aerobic base building phase of my training.
So I use the HRM to make sure that I'm not going over the point where Maffetone says you start becoming anaerobic which is 180 minus your age. in my case 144 Bpm.

This is very interesting, it certainly puts a different complexion on training pace, if I used this system i would need to keep below 120bpm to stay aerobic.

Not sure my training partners would let me run that slow It might explain why I can't get a decent sequence of training sessions going though. Might try this out next winter.
very very sceptical about this. 180 minus age is totally meaningless and for me would give an 'anaerobic limit' of 138, which is nonsense. I know my anaerobic threshold is around 170 bpm.
But as far as I know, theories about building base endurance over the winter at low hear rates aren't anything to do with aerobic / anaerobic - you're talking much lower levels. So 138 might well be about right as a max HR if I was going to adopt it - but that's not anywhere near my anaerobic threshold.