another guest wrote:
Here are the things I did not like:
- running twice on a day that calls for a medium-long run. I tried putting in 5 miles AM and 14 miles PM one time because it was in the schedule. That nearly killed me. My long run on the following weekend was slower than usual as a result of dead-tired legs.
- running twice a day (6 miles, 4 miles) on recovery days. In my experience it's a lot easier on the body to just run the 10 miles at one time.
That's the whole point, you're suppose to be tired from this workout. It teaches your legs to keep going when you get to those last miles of your marathon. Better yet, it teaches your MIND to keep going ...
And, unless that weekend's long run was a race, so what if it was slower. Even if it WAS a race, so what, it wasn't your goal race. Quoting Summer of Malmo, "Who you trying to impress? Not me, baby".
10 miles in one run is not a recovery, it's a workout. Running twice teaches your body to adapt to short rest without beating you up too much. If it's too hard on your body, it's because you're running it too fast. It's a RECOVERY, treat it that way. Allow yourself to recover, and next time you'll be faster on the same amount of effort.
The human body is an amazing machine. It'll learn and adapt without your mind even being aware of it (until it's too late). Sit on the couch eating Ho-Hos and it'll adapt to that too. Different workouts teach your body different things, all of which you'll need on marathon day.