This is Sheldon, he was the most injured last (2016) marathon season, showing over 10 injuries as we went through the correction process, that he obtained running the way TOO many runners, not experts in movement, suggest. Which is the why so many get injured listening to it. He is completely corrected and now my fastest male runner. Because of that stride, he now has the function to utilize his entire movement pattern of a run, to actually run. That said, I can actually explain why you are 100% dysfunctional, with a smile of course ;), and that's why you're so injured for so long.
When you don't have any hip rotation, which requires full extension and flexion, you create dysfunction in restriction of your own joints. I call this "under running" meaning, anything LESS than YOUR full range of motion, which will cause injury.. This happens, be it you are running wrong, or your mechanics are actually restricting your ability to run, both resulting in your body not functionally moving as a unit, making the joints and muscles to work against one another which leads to the greater imbalance (how the severity of the injury is determined), muscles and joints start OVER working improperly, resulting in injuries. You need BASIC HUMAN BIO-MECHANICS before any sport. Or, I don't care how good you are, you will never reach your potential, and you will stay with injuries. The mechanics MUST be present first IN ORDER to train the athlete.
So, for instance, a runner that does not have knee flexion at all (doesn't bend), is running as if they are running on stilts, jamming their hip, knee, ankle and back with every step. If you are not flexing your ankle, you are not flexing your hip. The dysfunctional movement, compounds injuries and makes the dysfunction STRONGER with every workout (speed workout is a strength workout FYI), until you correct the pattern.
So, you have no chance at running totally pain free or to your potential, or any PR for that matter, without fixing base line mechanics.
Breakdown: Hip function, to ankle flexion, to full foot movement to completely ROLL THROUGH your foot (ESSENTIAL FOR RUNNERS), then engages the glute, which extends the hip to then fire the hip to flex (you do not get full flexion with out full extension first), the ankle extends and push off occurs, then the knee can extend .. that is gazelle movement, the full function of the entire lower body, dictated by the glutes support of the upper body and with no tissue/fascia restriction across the T-spine preventing twisting or torque. The IT Band covers the entire movement pattern, covering all major joints and muscles required to allow a run movement. If that is restricting anything, nothing will work. Its a process to getting your body functional IN ORDER To perform. And that is all #RunPainFree is about, preparing the body to perform.
CLICK THE PHOTO BELOW FOR A SLIDE SHOW OF FUNCTIONAL STRIDES, Performed by Lead Female #RunPainFree Runner Jazz, and lead Male #RunPainFree #Runner Sheldon.