For decades, scientists believed that muscle fiber typology was mostly set at birth—some people were built for speed, others ...

Skeletal muscle, the type that is responsible for moving our muscles when we run, is comprised of three different muscle fiber types, each with its own advantages, disadvantages and specialty.

A protein family’s role in the regulation of fast-twitch muscle fibers – those involved in fast and powerful movements – has been identified by scientists at the University of Tsukuba. The research is ...