This Principals of Natural Running video[0] is pretty good at illustrating foot strike, running stride, posture, mechanics. [0] https://www.youtube.com/watch?v

This Principals of Natural Running video[0] is pretty good at illustrating foot strike, running stride, posture, mechanics. [0] https://www.youtube.com/watch?v=1finiZn4G3E https://www.youtube.com/watch?v=1finiZn4G3E