"Muscle Power Truths," University of Washington Study  
7/10/2013 7:16:40 AM

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Scientists have discovered a new truth behind big muscles, turning 50 years of knowledge on its head. Bulging biceps get their power from a mesh arrangement of cells rather than long ropes, detailed studies reveal. As muscles flex, tugging filaments fan out in a lattice, say the University of Washington team who made the breakthrough.

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