Mechanical Loading Induces the Longitudinal Growth of Muscle Fibers via an mTORC1-Independent Mechanism
Jamie E. Hibbert, Kent W. Jorgenson, Ramy K. A. Sayed, Hector G. Paez, Marius Meinhold, Corey G. K. Flynn, Anthony N. Lange, Garrison T. Lindley, Philip M. Flejsierowicz, Troy Alan Hornberger
This study shows mechanical loading induces muscle fiber growth through two mechanisms: mTORC1-dependent radial growth and mTORC1-independent longitudinal sarcomere addition.
bioRxiv · Sep 19, 2025 · PreprintPhysiology