pretty much all elites run twice a day, ez in the morning which for some will be as slow as 8+ per mile and then a hard run in the evening.
Anywhere from 6-10 in the am to 15+ in the evening depend on time of year and what they are training for.
Alan Culpepper in the run up to Chicago was running 140 miles a week, Radcliffe 130.
If your body can handle it without breaking down I suspect that there are huge gains to be made from it, similar to a running camp but without building to it you can not sustain doubles for very long........
A more interesting development in elite running is what KK and Radcliffe were doing prior to their WR's which was 20-22 miles at faster than race pace, run till you puke literally in KK case.
I think that combined with doubles is one way to get fast........oh and triples work as well with a quick three miles at lunch :)
Anywhere from 6-10 in the am to 15+ in the evening depend on time of year and what they are training for.
Alan Culpepper in the run up to Chicago was running 140 miles a week, Radcliffe 130.
If your body can handle it without breaking down I suspect that there are huge gains to be made from it, similar to a running camp but without building to it you can not sustain doubles for very long........
A more interesting development in elite running is what KK and Radcliffe were doing prior to their WR's which was 20-22 miles at faster than race pace, run till you puke literally in KK case.
I think that combined with doubles is one way to get fast........oh and triples work as well with a quick three miles at lunch :)