Andy Galpin is the muscle physiologist most masters cyclists have been quoting without realising it. He runs the Center for Sport Performance and the Biochemistry & Molecular Exercise Laboratory at Cal State Fullerton, has co-authored more than ninety peer-reviewed papers on skeletal muscle, hypertrophy, fibre-type adaptation, and recovery, and consults for athletes across MMA, motorsport, the NBA, the NFL, and Olympic sport. If you have heard a coaching argument in the last three years that turned on type II fibre atrophy, velocity-based training, or protein dose timing for older athletes, the original work behind that argument almost certainly has Andy's name on it. He is also the rare academic whose communication ability matches his research credentials — his Perform podcast and Huberman Lab guest appearances have done more to translate skeletal muscle physiology into amateur-athlete language than any textbook ever has.
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Where Galpin lands on the questions people ask most.