The Science of Muscle Contraction for CSCS Coaches @TheMovementSystem
The Science of Muscle Contraction for CSCS Coaches  @TheMovementSystem
Uploaded April 2026 | Updated September 2026, 1 week ago
Terms CSCS Coaches need to know:

⚡️ Action Potential: An "All or nothing" electrical impulse traveling down the nerve to the muscle.

Rate Coding: Action potentials per second

📈 Henneman Size Principle: Small, slow twitch fibers activate first, larger fast twitch fibers activate later.

Selective Recruitment: Well trained athletes can learn to activate fast twitch fibers first.

🧠 Acetylcholine: A neurotransmitter helping to get the signal from the nerve to the muscle.

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The Science of Muscle Contraction for CSCS Coaches

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