There is an optimal amount of strain that a beating heart can generate and still beat at its usual rate, once per second. Researchers have now shown that this "sweet spot" depends on the stiffness of the collagen framework that the heart's cells live within.
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/N...
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/N...