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
