Treadmill walking for fitness is an effective way to get a good cardio exercise to burn extra calories and achieve a healthy lifestyle. Walking on a manual treadmill is one of the easiest and most effective ways to develop a regular exercise pattern. Fitness walking is a great way to stay in shape by helping you lose body fat and tone muscles. Easy assembly out of the box uses no electrical power and is maintenance free. The main advantage of a manual treadmill is that you go only as fast as you push yourself. When you slow down the treadmill slows down and when you stop walking the treadmill stops.