Age-related reductions in the number of serial sarcomeres contribute to shorter fascicle lengths but not elevated passive tension
G. A. Power, S. Crooks, J. R. Fletcher, B. R. MacIntosh, W. Herzog
This study examines age-related changes in muscle architecture, finding shorter fascicle lengths and reduced serial sarcomere numbers in older rats, but no elevation in passive tension.
bioRxiv · Dec 21, 2020Physiology