Treadmills allow users to walk or run regardless of the weather. Many treadmills also provide specific information, such as speed, distance, calories burned and time elapsed. Learn how to use a treadmill from a trainer in this exercise tutorial. When you use a treadmill you should start at a moderate speed, increase speed comfortably, relax shoulders, and keep abs tight. With this how to video you will be able to use a treadmill for a more effective workout.