Satellite Cells
2 articles
Hypertrophy Hub
Satellite Cells and the Myonuclear Domain: Why Your Muscle Fibers Can Grow Without New Nuclei
The classic "myonuclear domain ceiling" theory, which suggested muscle growth strictly requires new nuclei from satellite cells, is challenged by modern research. Evidence shows muscle fibers can hypertrophy significantly by utilizing the transcriptional reserve of existing myonuclei.
Elena Pappas·October 29, 2026
Hypertrophy Hub
How Satellite Cells Rebuild Your Muscle: The Sequence from Damage to Hypertrophy
Resistance training causes microscopic muscle damage, activating dormant satellite cells. These cells then multiply and fuse with muscle fibers, adding nuclei to drive repair and hypertrophy.
Elena Pappas·October 29, 2026