Type I slow-twitch muscle fibers are recruited during aerobic exercise and can sustain longer periods of movement Daniel Herman, the founder of Bio-Synergy, explains.

This type of muscle memory also means your brain no longer has to think so much about the movement, said Brett Johnson, CEO of Chicago-based SwitchedOn Training Inc., who holds a bachelor’s ...

Skeletal muscle is the type of muscle that controls movement. Problems with these muscles can be minor, life-threatening, or ongoing problems that make it hard to perform basic daily activities.