Sub-85 wrote:
Even for marathoners, anything beyond 80 mpw is simply junk mileage that fools amass to impress other runners or gain some sort of false confidence by seeing it in their training log.
This is wrong. But perhaps you know better than all of the "fools" who have become world-class marathoners. Perhaps you even have support from exercise physiologists who, having failed to identify the reasons that virtually every notable marathoner runs more than 80 miles per week, have simply concluded that these marathoners are wasting their time or using "junk mileage" as a substitute for confidence achieved through superior knowledge.
I remember when Paul Pilkington, after winning the L.A. marathon, was told by an interviewer that it had been scientifically proved that running more than 70-80 miles a week had no beneficial effect on performance. Pilkington replied that he was aware of that claim, and when his competition started running only 70-80 miles a week, he would follow suit.