Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Individual human skeletal muscle fibers were studied for their contractile performance. Normalized power was 2, 6, and 12 fold greater in MHC I/IIa, MHC IIa, and MHC IIa/IIx fibers when compared to MHC I fibers. No MHC IIx fibers were studied. MHC = myosin heavy chain.
