Running May Not Cause Arthritis
Researchers have extensively studied the relation between running and arthritis of knees to conclude that running regularly may not increase the risk of osteoarthritis. In fact, running can prevent arthritis of the knee in runners.
This study contained data from 2600 people who used to perform some form of physical activity in their life. The age groups were divided into 12-18, 19-34, 35-49 and 50 or older. 29 % of the people were runners at some point of time in their lives.