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heel striking and midfoot striking
3:25pm, 21 Sep 2012
Grandpa FlumpI can't really add anything extra that AndrewS and Canute haven't already said except to mention that the book with the most links to studies I can remember reading in one place which really looks at all aspects of form is Tread Lightly by Peter Larson and Bill Katovsky for those that want to read some more.