Have any of you followed the Furman Institute of Running and Scientific Training (FIRST) marathon training plan of just 3 days of pretty intense running per week for a stand-alone marathon or in IM training? http://www.furman.edu/first/2.htm
Basically you run only 3 days a week at paces based on your 10K pace and also cross train hard for 2 days a week:
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Long run up to 20 miles at 10K pace plus 60-75 seconds per mile
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Tempo run up to 10 miles at 10K pace plus 0 – 30 seconds per mile
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Speed work of 400 – 2000 meter repeats eventually totaling up to 3 miles at 10K pace minus 30 – 60 seconds per mile
Runners World forum has lots of positive comments on the plan and they had an interesting article on it too:
http://www.runnersworld.com/article/0,5033,s6-51-56-0-8257,00.html
A few excerpts:
The Furman Institute of Running and Scientific Training (FIRST) marathon program was born, in a sense, when Bill Pierce and Scott Murr decided to enter a few triathlons way back in the mid-1980s. Just one problem: They hit the wall when they added biking and swimming to their running. The demands of three-sport training were too much, so they cut back their running from six days a week to four.
To their surprise, they didn’t slow down in local road races. So they cut back to three days of running. “Lo and behold, our 10-K, half-marathon, and marathon times didn’t suffer at all,” says Pierce. “The more we discussed this–and we discussed it a lot–the more we became convinced that a three-day program, with some cross-training, was enough to maintain our running fitness.”
Pierce, chair of Furman’s Health and Exercise Science department, has run 31 marathons, with a best of 2:44:50. At 55, he still manages to knock out a 3:10 every fall by practicing what he preaches: running three workouts a week. While Pierce has retired from triathlons, Murr, 42, with a doctorate in exercise physiology, still wants to complete another Hawaii Ironman, having already done five. He has run a 2:46 marathon, also on three training runs a week.