17min chapter

The Peter Attia Drive cover image

#239 ‒ The science of strength, muscle, and training for longevity | Andy Galpin, Ph.D. (PART I)

The Peter Attia Drive

CHAPTER

Exploring Muscle Fiber Types and Hypertrophy

This chapter investigates the complexities of muscle fiber types, particularly the rare 2X fibers, and their distribution in trained versus untrained individuals. It highlights how training, nutrition, and age can influence muscle fiber composition and adaptations, particularly focusing on muscle hypertrophy and the physiological changes that accompany strength training. Additionally, the chapter addresses the relationship between muscle size and strength, emphasizing the importance of hydration and dietary considerations for optimal athletic performance.

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