you need to run at a low intensity...
on the treadmill it should have an option of fat burning, you need to run at around 60% percent of your maximum heart rate (which has already been explained).
working at 60-70% means you are working aerobically (using oxygen) and supply's you already have (fat), if you run above 70% you will be working anaerobically which should only be used for short distances because you will build up lactate acid in your muscles due to reactions blah blah which hurts basically.
you don't really need to set a speed or distance because everyone is different. se the timer for about 30mins and run at a pace which keeps you in that 60-70% zone, when it starts getting to easy increase the distance and speed. if its too difficult lower it, safe.
Edited by lepino on 07/09/08 11:30pm