I did a Itrain workout friday morning, it kicked my butt. I ran saturday morning with my friends and thought for sure I would be tired from the itrain workout. It was the opposite, I felt fast and light then I took sunday off and ran this morning. Today I felt sluggish and heavy. I just dont understand why after a rest day that I would feel like that. I have a race on saturday I was planning on doing another Itrain workout tomorrow and then my bootcamp class on wednesday night and then rest thurs/friday race on saturday but I am afraid I will feel the same way, sluggish and not up to top speed. I did this exact same workout before and on saturday was sluggish. How can I avoid feeling this way come saturday? thanks!