An area of sprinting that I am having a hard time conceptualizing and applying is vertical hip displacement.
What is the role of vertical force and motion?
What is the role of hip height / lift?
Try looking through the pictures in this thread
http://www.charliefrancis.com/community/showthread.php?t=12672, plenty of examples of vertical force and high hips
Yeah. Those pictures are great at demonstrating technique. Problem is that with a lack of understanding the roles of vertical force, hip height and how it applies to sprinting, I don’t know what I am looking at.
Check out Edmonton dvd handouts
This is covered extensively in the Vancouver 2002 DVD, which I think unfortunitly is no longer availible. There is a whole section on the harvard discussion and mechanics. Very interesting stuff.