Marked irregular myofiber shape is a hallmark of human skeletal muscle aging and is reversed by heavy resistance training
C. Soendenbroe, A. Karlsen, R. B. Svensson, M. Kjaer, J. L. Andersen, A. L. Mackey
This study identifies myofiber shape as a marker of skeletal muscle aging in humans and mice, showing that resistance training reverses shape irregularities in type II myofibers.
bioRxiv · Jun 5, 2023Physiology