Sprinting is very much like High Intensity Interval Training or HIIT which is becoming very fashionable these days. These incorporate fast sessions mixed with slow recovery sessions, or in this case runs. They can be enjoyable and provide a different way of working out for someone like me who runs longer distances.
As I've said before sprinting and HIIT is a shock to the body and it won't be used to doing such a workout, which is kind of the point. There are other speed workouts you can try which are less strenuous than sprinting. These are fartlek, tempo and interval. A treadmill is perfect for these and there is a page of 12 speed workouts you could try.
Unless you've done many of these before and are confident, it might be an idea to have someone you the first few times you attempt this. It's a hard workout but a great way of telling your fitness level. Athletes do this with doctors to test their VO2 max. It's a way to see how well your body uses oxygen. I recommend you have a go and see what you think of it.