A novel imaging method (FIM-ID) reveals that myofibrillogenesis plays a major role in the mechanically induced growth of skeletal muscle. - Jorgenson KW; Hibbert JE; Sayed RKA; Lange AN; Godwin JS; Mesquita PHC; Ruple BA; McIntosh MC; Kavazis AN; Roberts MD; Hornberger TA (ELife, 2024)