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💪 Muscle Hypertrophy and mTOR Signaling Lab

Explore how resistance training triggers the mTORC1 signaling pathway inside muscle fibers, driving the protein synthesis response that builds new muscle over repeated training sessions.

Medicine & Biophysics3DModerate60 FPS

This simulation demonstrates how mechanical tension, metabolic stress, amino acid availability, and recovery timing combine to activate the mTORC1 signaling pathway, and how the resulting temporary shift in the muscle protein synthesis versus breakdown balance determines whether repeated training sessions accumulate into real hypertrophy.

🔬 What It Demonstrates

🎮 How to Use

Adjust training load and effort to see how mechanical tension and metabolic stress feed into mTORC1 activation, set leucine and protein intake levels to observe their permissive effect on the translational response, and vary the rest interval between sessions to see whether the elevated synthesis window has time to produce net-positive growth or gets undermined by insufficient recovery.

💡 Did You Know?

Did you know that the popular idea of a narrow post-workout anabolic window lasting only thirty to sixty minutes is a myth -- research shows muscle protein synthesis actually stays elevated for roughly twenty-four to forty-eight hours after a resistance training session, giving a much wider practical window for nutrient timing than commonly assumed.

⚙ Under the hood

Explore how resistance training triggers the mTORC1 signaling pathway inside muscle fibers, driving the protein synthesis response that builds new muscle over repeated training sessions.

hypertrophymtormuscle physiologyresistance trainingprotein synthesisexercise sciencecell signalingsports biology

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install