18min chapter

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

The Peter Attia Drive

CHAPTER

The Science of Muscle Contraction

This chapter explores the complexities of muscle contraction, emphasizing the functions of motor units and the process of neurotransmission. It examines the differences between muscle types, particularly slow twitch and fast twitch fibers, and their impacts on performance and endurance. Additionally, the discussion highlights how genetic factors and activity levels influence muscle composition, illustrated through fascinating twin studies.

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