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Relative energy deficiency in athletes

Relative Energy Deficiency in Sport

By Matthew Kadey, MS, RD / September 7, 2021

Relative energy deficiency in sport is a term describing a mismatch between calorie intake by athletes and what they expend training.

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Drawing of a man exercising and emanating body heat

Harnessing Your Body Heat to Fuel Batteries

By Shirley Archer-Eichenberger, JD, MA / June 7, 2021

Imagine a future where you can go for a run or teach a group exercise class and convert your body heat to power your smartwatch.

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Man running high-speed

The Three Metabolic Energy Systems

By Jason Karp, PhD / February 1, 2009

The energy we use to move comes from three metabolic energy pathways: the phosphagen system, glycolysis and the aerobic system.

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