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Metabolic Efficiency

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Metabolic Efficiency Testing: Explanation and motivations

By Andrew Skurka / November 30, 2014 /

Tomorrow I am having tested my “metabolic efficiency” by Dina Griffin of eNRG Performance in Denver. In this post I will explain the concept and its relevance for backpackers and runners. In a second post, I’ll share my results. What is Metabolic Efficiency? Our bodies rely primarily on two sources of energy: Carbohydrates Fat Carbohydrates are most quickly…

TNF 50 Mile Race Report: Reflections on pacing, nutrition, training, and a lot more

By Andrew Skurka / December 8, 2014 /

It almost certainly will not be another four years until I race again. But overtime my recollection of The North Face 50 Mile Championship will change: I’ll forget the finer details, and my reflections will be influenced by future developments and conversations. So my race report is meant to be as instructive to me as…

Metabolic efficiency test results: I’m a butter-burner!

By Andrew Skurka / January 30, 2015 /

In the lead-up to the The North Face 50 Mile Championships in December, I was looking for any “edge” that could help me race to my potential and to offset some of the advantages that a comparably talented runner had over me, like more ultra racing experience and a training cycle longer than 6 weeks.…