Archives for Cross Country training

The Oxygen Deficit Curve: The Limiter of Mid-Distance Performance

Adenosine triphosphate (ATP) molecules are reduced and then regenerated constantly to facilitate skeletal muscle contractions.  The amount of ATP that goes through this process is astonishing.  David Costill Ph D, estimated that in the running of a marathon, an athlete will reduce and then regenerate, a quantity of ATP molecules equivalent to their full body…

Q&A: Morning runs after a hard workout?

In addition to over 2.5 hours of excellent middle distance training information, Coach Christensen has agreed to answer training questions for anyone who invests in his program.  Preparing the Elite Junior Middle Distance Runner (800-1600m) Here is one he answered the other day. Question: Hi Coach! I thoroughly enjoyed your talk and handouts, etc. Regarding…

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