Mental Running

Is running on the spot as beneficial as actually running outside or in a treadmill ?

is running up and down stairs a good work out? if so, how many should I do a day?

I heard that when running, the most used muscle is your abdomnal??? is it true??

Does anybody run the 1600 or 3200? If so what are your best times and how do you train?

Which burns more calories: biking or running? Like if you did each for an hour which would burn more?

About how many calories do you burn when you run a mile?

I was wondering if I Bike a certain amount of miles is there an equivalent to a amount of miles running

people say 2 burn fat you need 2 do cardio or aerobic. what im wondering is how are you supposed 2 run or jump rope 4 20 min ...

I have to run a mile in 2 days, and I have never ran one before. I weigh 154 Ibs, and I am a slow runner. I am overweight. (I...

When I run in football I get tired to easily and I play linemen but I have so many people say that I am the right size for a ...