This post is sort of a personal note.
I have been logging about 30km a week, on average, since I came back from Barcelona’s marathon; this is, after about 4/5 weeks that I was down after the race because my knee was injured.
Right now I am not pushing so hard, but I still try to go out at least 3 times a week. In fact I really feel the need to run at least every other day, unless I am able to go kitesurfing and if it is a good windy day I will be tired enough not to think about running!
With that said lately I have been noticing that during the first 4 to 5km my body does not feel at ease and only after those 20/25 minutes my body is warm and my stride gets in sync with my lungs. After that point I can either push speed a bit more or go on up to 12 or 15km without much effort, especially if I am running at around 5min/km.