Often when we're looking at musculoskeletal injuries we classify them in two different ways. When we have an acute injury, there's a clear mechanism. You fall off a curb and break your ankle. We know what happened.
Overuse injuries are the accumulation of microtraumas over time. Something that's common in the news right now is MTBI, mild traumatic brain injury. It's subconcussive trauma over time. Fractures, tendinitis and bursitis would be examples of that. Those types of injuries are what I'm talking about.