Animation walk cycle

WALKING

http://www.youtube.com/watch?v=ePhHDs53lfo- How to draw a walk cycle!

Identifying the key four poses, Contact, Recoil, Passing, and High Point of both the first and second stride for walk cycle animation.

RUNNING 

The same four cycle points as walking can also be used to break down a run,(Contact, Recoil, Passing, and High Point) only the movements are far more defined with more power and intent. Here is my recreation of a run.