Walkers Get Fewer Injuries Than Runners
Walking produces far fewer injuries, the least injuries of any aerobic exercise. Researchers note that up to half of all runners are affected by running injuries each year, most commonly of the knees. It has long been suspected that these injuries, as well as stress from long runs such as marathons, leads to changes that can result in osteoarthritis, especially in the knee.
Walking Is Lower-Impact than Running:
Runners impact the ground with three times their body weight with each step, while walking only produces an impact of 1.5 times your body weight. This is especially important if you are overweight or already have developed joint problems. As a lower-impact exercise, you feel less fatigue and there is less wear-and-tear on your body with walking. Yet walking is still is a weight-bearing exercise that may prevent bone loss.