Muscles can get bigger and stronger, but they don't get toned-er. Sort of.

Estimates suggest there are more than 650 skeletal muscles in the human body. Muscles perform a variety of functions that are essential to life. Skeletal muscles are attached to bones via tendons and ...

You can't 'tone' muscle, so here's what is really happening when you build muscle definition, and why you need to know about body recomposition.

Estimates suggest there are more than 650 skeletal muscles in the human body. Muscles perform a variety of functions that are essential to life. Skeletal muscles are attached to bones via tendons and ...

The hamstring muscles are responsible for your hip and knee movements in walking, squatting, bending your knees, and tilting your pelvis. Hamstring muscle injuries are the most common sports injury.

The muscular system works to control the movement of our body and internal organs. Muscle tissue contains something called muscle fibers. Muscle fibers consist of a single muscle cell. They help to ...