9% of the population have OA but this figure jumps to 60% once >55 years old1. However, with an ageing population and rising obesity rate this figure could increase. OA is the end result of excessive or abnormal loading of the joint surface. Previous joint injury can accelerate this process, but degenerative joint changes are a normal process for all of us.
Hockey involves high speed running, cutting, direction change as well as repetitive and forceful rotation on the stance leg (particularly the left hip).