S1E05 The Size Principle

In this episode, you will learn the fundamental mechanics of how the human body recruits muscle fibers to produce force. This episode systematically breaks down Henneman’s Size Principle, explaining the hierarchical nature of motor unit recruitment and how you can strategically bypass the body’s "efficiency mode" to target high-power fibers. By understanding the levers of intensity, velocity, and fatigue, you will gain a blueprint for optimizing training sessions for strength, power, and hypertrophy.