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Researchers at Penn show optimal framework for heartbeats

December 6, 2013

still image of a chicken heartbeat There is an optimal amount of strain that a beating heart can generate and still beat at its usual rate, once per second. Researchers at the University of Pennsylvania have now shown that this "sweet spot" depends on the stiffness of the collagen framework that the heart's cells live within. Full Story

University of Pennsylvania

The National Science Foundation (NSF) is an independent federal agency that supports fundamental research and education across all fields of science and engineering. In fiscal year (FY) 2016, its budget is $7.5 billion. NSF funds reach all 50 states through grants to nearly 2,000 colleges, universities and other institutions. Each year, NSF receives more than 48,000 competitive proposals for funding and makes about 12,000 new funding awards. NSF also awards about $626 million in professional and service contracts yearly.

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