Fig 4. Perception of HCP about running and the progression of knee osteoarthritis.

(A) “People with knee osteoarthritis who continue to run will sustain greater knee cartilage damage leading to more severe OA”; (B) “It is fine for people who have OA to run as long as they don’t have symptoms on the day they go running”; (C) “A person with knee osteoarthritis who keeps running regularly will speed up the need for joint replacement surgery (knee arthroplasty)”.