56 -Where Strong Starts - Nerves, Fibers & the Science of Strength feat. Dr. Sean McEachern

Join your favorite doctor of physical therapy and strength coach as we dive into the fundamentals of muscle physiology and what actually drives strength gains in the body.

If you lift weights, train hard, or just want to understand what’s happening under the hood when you exercise, this episode breaks down the neuromuscular system in a way that actually makes sense. From nerve signaling to muscle fiber types, we explore the science behind contraction, adaptation, and why certain types of training produce different results.

EXPECT:

How the neuromuscular system drives strength gains (hint: your nerves are just as important as your muscles)
A clear breakdown of the sliding filament theory and how muscles actually contract
The role calcium and nerve signaling play in turning muscle contractions on and off
Differences between type I and type II muscle fibers and how training intensity influences them
Why eccentric and isometric contractions matter for strength, growth, and rehab
How muscle fibers can adapt based on the way you train

We also tee up the next chapter of this series with a preview into bioenergetics and energy systems, and why understanding how your body produces energy can completely change the way you train. 💪

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