I can never understand to run faster you have to run slower!
A lot of newer runners end up doing everything medium hard, thinking the only way to improve is to continually attempt to smash it.
Firstly they simply haven't the conditioning to run a proper hard session, and secondly, through running everything medium hard they get fatigued.
You'll get plenty of gains simply by running everything slower, but when that levels out, you need to do the majority easy to allow 1 or 2 really hard workouts.
It's those couple of workouts that are the money, but the rest of the structure is the support works. You need both to get faster long term
Edited: 13/12/2012 at 14:42