There's a lot of talk about lean muscle compared to bulk muscle, but experts say it's not worth differentiating the two.

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.

Most fitness-minded people have probably heard of fast- and slow-twitch muscle fibers. However, the distinction can be somewhat mysterious, especially in the context of understanding how it relates to ...

There can get a point where you’re climbing mountains, navigating rough terrain, or carving fresh pow and feeling good —but ...

The human body is a wonderous thing, especially when you consider how intricate and efficient each bodily system is. For instance, an adult’s blood vessels could encircle the earth 2.5 times if ...

More than 30 types of muscular dystrophy have been identified. They all cause problems with movement due to muscle protein defects caused by genetic mutations. Muscular dystrophy is a group of ...

Bone structure, how easily you gain muscle, and where you tend to store fat all help define your somatotype (body type). Learn how to personalize your fitness goals based on your body type.

When you hear the term “muscle memory,” it conjures up images of your muscles being able to memorize certain movements, such as dribbling a soccer ball or playing “Happy Birthday” on the piano. But ...

Electrical myostimulation is the use of electric currents to enhance muscle function. This type of therapy is called electrotherapy. It helps to strengthen and stimulate the recovery of muscles after ...