I decided to take last week "off". I had a nasty headcold, was very tired from that, and just needed a breather from the gym. Last night went back and it was great! I had so much more energy and power. The week of rest also allowed my shin splints to heal! I was able to do 4.5kms of 200m walk, 400m run, repeat. I also seemed to be a lot stronger in terms of strength training. So, I think the break was really beneficial, I'm glad I did it! Now I'm totally ready to jump back on full speed.