Eric, I wanted to address a few of your points because I think they represent a common but understandable misconceotion among a lot of triathletes.
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Weekly mileage is less correlated to your AT that most people guess.
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What we know is that if you want to run fast in a distance event, you need lots of milage and, depending on the event, moderate amounts of threshold work and a little bit of interval and speed training.
The only place where this is not true is in the heads of people who don't think it is. You won't find a successful distance program in the world where this is not the case. If it is possible to succeed otherwise, no one has figured out a way to show it.
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I think prescribing 7 runs in 7 days is saying one of two things: either there are circumstances where no rest day is optimal over a 7 day period or that a run is the optimal way to recover from previos run training.
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Why do you a 48 hour period to rest? Elites don't run 7 times a week. They run TWELVE times a week!
What Desert Dude and I try to get across to people is that the trade off is not between doing 3 8 mile runs or doing 7 8 mile runs. If 8 miles is tough enough to require a rest day the next day, then there is no way you can just double the amount of runs that you do.
The idea is to trade your 8 mile runs for 7 runs that average 3 1/2 miles. Think about it. If you can run 8 miles and instead you only ran 3 1/2, you will probably be pretty well rested by the next day.
There is a point in running where you push the body beyond the point where it just takes too long to repair. That is pushing it way to hard and inhibits the main contributor to stimulate improvement, which is consistent training volume.
I don't wish to read too much into what you wrote....maybe you think 5 days a week is ideal for triathletes, which isn't unreasonable, but I have run into so many who think that you should only run 3-4 times a week. Not only will you not find a college or pro program in the world that does that, you can't even find a mediocre high school team that runs that seldom. Running is simply an activity that you can do every day, and you need to do it at least 20-30 times a month if you want to come close to your potential.
-----------------------------Baron Von Speedypants
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