H.I.T. Reader wrote:
I agree with others, if 4x2T or whatever it's supposed to be seems too hard/impossible, you aren't running the correct pace. I didn't start running my workouts under control until I began wearing a HR monitor and gained an understanding of where my HR should be on a Lactate Threshold or MP Tempo Run. Look up Heart Rate Reserve. That tells you where about your HR zones should be as a % of your working heart rate (MaxHR- RestHR = HRR). Lactate Threshold is usually around 85% of HRR, so ((.85 x HRR) + RestHRR) = LT HR. For MP tempos, which Lydiard athletes did twice a week at 10 miles a pop (solid training, not racing), you want to target your HR between 70-80% of HRR. The best way to push your lactate threshold up is from below, not above your LT. I have no problem doing two 1 hour MP tempos twice a week. This is how training for the marathon should be. It shouldn't seem impossible, far from it. It will be challenging, but not impossible.