Sorry, yes, some bio: I'm 34year old, male, 5'10'', 71kg. Only started running when i was 30, ran a few 10ks and a couple of HMs and a Marathon (brighton 2010). None of my times were particularly impressive and my "training" was very haphazard (basically running 5k about 3 times per week as fast as possible, and not really finding that I was getting any faster. PB 24:05).
For what it's worth PB for 10k = 0:55:00, HM = 2:00 and Marathon = 5:08
started running again in August with the intention of doing it "properly" this time, which means with consistency, and I think what needs most immediate attention is my aerobic fitness.
I like the idea of running around 70 - 75% MHR (which is what the HADD article seemed to suggest), and so at a comfortable pace below lactate threshold to ensure all the effort is aerobic and not anaerobic, which I guess is what most of my previous running has been, and why i'm still aerobically unfit.
However, assuming my MaxHR is "somewhere" in the region of 185-190 that would put a 70-70% run at 133-142 bpm, which I've recently demonstrated is almost impossible as my slowest possible jog still has my HR around 150. So I guess I'm asking whether continuing to run at this effort level, even given the higher than optimum HR, is going to encourage the same adaptations mentioned in the Hadd article? Will I develop aerobically from this incredibly slow jog that could still effectively be anaerobic? (having had no clinical LT test I can't say definitively what my LT is).