Iron Culture presented by MASS Ep. 236 - Muscle Fiber Types & Training Explained (feat Andy Galpin)
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Aug 21, 2023 
World leading muscle fiber researcher Dr. Andy Galpin discusses muscle fiber typing, misconceptions, and training adaptations. Topics include slow vs fast twitch lifting, fiber conversion, measuring muscle fiber composition, fiber-specific hypertrophy, outdated muscle fiber myths, and future research directions. The podcast provides a highly educational and informative discussion on muscle physiology.
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Galpin's Biopsy Experience
- Andy Galpin has analyzed over a million single muscle fibers and performed around a thousand biopsies.
- He has also undergone approximately 40 biopsies himself, including multiple biopsies in one session.
Biopsy and Power Cleans
- A participant intentionally hit his biopsy site with a barbell after the procedure, causing a bruise.
- He repeated the action the following day, despite being advised against it.
History of Muscle Biopsies
- The Bergstrom needle biopsy technique, used for over 60 years, emerged during a surge of interest in human performance in the mid-20th century.
- This period saw advancements like the first ascent of Everest, the four-minute mile, and the rise of organizations like the American College of Sports Medicine.