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Physiology

Humans aren’t machines—we’re much more complicated. Exercise physiology involves changes in the body from exercise and rest.

From anaerobic threshold to environmental acclimatization, from FTP to PGC-1 alpha, we explore the science of human performance.

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Physiology > Cardiovascular Drift

heart cardiovascular drift

Cardiovascular Drift, with Dr. Ed Coyle

Cardiovascular drift is an instability in heart rate and stroke volume over time. On the bike, we measure it by looking at a rise in heart rate relative to power. We dive in.

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