biomechanics
22 November 20251 min read
Mechanical Tension: The Primary Driver of Muscle Growth
Why is lifting heavy weights more effective than doing endless light reps? We analyze the role of mechanotransduction and why creating tension on muscle fibers is the key to triggering the mTOR pathway.
Introduction While metabolic stress (the "pump") and muscle damage contribute to hypertrophy, recent meta-analyses (2023) confirm that Mechanical Tension is the king.
What is Mechanotransduction? It is the process by which cells convert mechanical stimulus into chemical activity. When a muscle fiber stretches under load, it signals the nucleus to synthesize new proteins.