More often than not, it all starts in the foot for runners
Injuries to runners happen almost anywhere in the body: the bottom of the feet, the ankles, the lower leg, the knee, the upper leg, the hip and pelvic girdle and on up the body.
It reminds me of that song we learned in school that went over the body, “the foot bone connects to the ankle bone; the ankle bone connects to the leg bone, etc., etc.”
No matter what the injury is, the basic point of everything starts at the bottom of the foot. That is where a runner hits the ground and pushes off with the feet to run the race.