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Biomechanical Work: Concentric, Eccentric and Isometric Contractions

Today’s post is from my friend Jim Lien.  He writes over at Jim’s Primal Suit, and is the developer/programmer behind Is It Paleo and Carbhacker.  You can follow him on twitter here.

An app to calculate carb calorie offsets with squats

An app to calculate carb calorie offsets with squats

This post helps to clarify some of the physics and math put into a new app I developed called CarbHacker, which is a carb calorie burning estimator.  It may seem like a little bit of hocus pocus, but there is a good amount of math and logic backing the app.  Plus it doesn’t hurt that some fitness gurus like Tim Ferriss and Mark Sisson have covered the topic similarly, although without the math behind it.  This post covers just one part of the app’s assumptions regarding work and muscular contraction.

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