"A study at Boston University School of Medicine looked at the continuous impact of the foot with the ground and the commonly accepted belief that running cause

"A study at Boston University School of Medicine looked at the continuous impact of the foot with the ground and the commonly accepted belief that running causes degeneration of the knee and can lead to all sorts of arthritic conditions. Said lead researcher and epidemiologist David Felson of BU: “We know from many long-term studies that running doesn’t appear to cause much damage to the knees. When we look at people with knee arthritis, we don’t find much of a previous history of running, and when we look at runners and follow them over time, we don’t find that their risk of developing osteoarthritis is any more than expected.” Felson added that recreational running doesn't increase the risk of arthritis." Quoted from: http://www.mizunousa.com/running/blog/article/the-planet-wave-is-running-bad-for-your-knees http://www.mizunousa.com/running/blog/article/the-planet-wav...