John Grunn Marx

Posted on Friday, June 14th, 2013 by John Wood
A look at John Grunn Marx about to break a chain with the arm that broke three horseshoes in two minutes and 15 seconds. Marx did a lot of training with thick-handled barbells and dumbbells which gave him a grip of steel, in fact, that was the title of a grip course that he wrote: “The Grip of Steel. The Complete Science of Hand and Forearm Training.”
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Author: John Wood

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