According to the Harvard Heart Letter, walking can burn anywhere from 120 to 222 calories per hour, depending on the walker's weight and pace.
Walking can be suited to each exerciser's fitness and mobility level, starting at a gentle walk, then working up to a brisk walk and finally race walking.
Walking is beneficial for many exercisers, especially those with bone or joint problems or who are overweight, because it's low impact. There's no pounding or leaping about involved in a walking workout.
Weight-bearing exercise like walking, where your bones, joints and muscles have to support the weight of your body, is often recommended for people with osteoporosis. The gentle pressure of your body weight helps strengthen the bones without subjecting them to damaging stresses or sudden pressures and impacts.
You don't need any extra equipment for walking, which makes it the most convenient form of exercise possible. No matter where you are, as long as you can stand up and have a little space, you can walk.
Walking on uneven surfaces challenges even a very fit individual's stability and balance.