What's the connection to myth-busting static stretching for preventing injuries in runners?

It seems pretty obvious that you should take hourly movement breaks from static positioning, especially with arthritis. If static-stretching is your preferred movement, as it is for many people (see: yoga), go for it.

But for health and fitness goals in the absence of pathology, everyone would do better replacing their static stretching with strength training in a full range of motion with eccentric control while using proper neuromuscular stabilization including diaphragmatic breathing.