I have started training recently, i have been training for about 2 months just getting my base milage up, now i want to increase my power and i have been told to do this by intervals. I was just wondering if someone could explain to me what an interval is. I am guessing that it is a sprint as hard as you can with a rest period followed by another repition. What sort of things do you do when you do interval training? What exactly does it do? does it increase your power? anaerobic fitness?
I have a vauge idea what they are about, but i would just like someone to give me a explanation.