Eccentric exercise may help build muscle and strength with less effort than traditional workouts. Learn the benefits, risks, ...

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.

Medically reviewed by Brigid Dwyer, MD Key Takeaways Involuntary muscle movements happen when your body moves without you intending it, like with tics or tremors.  The causes of involuntary movements ...

The back consists of large, complex muscles that support your trunk and spine. There are many types of back muscles, and they are all essential, helping you walk, bend, twist, and hold your body ...

Dystonia and chorea are two types of involuntary movement associated with neurological disorders. Dystonia movements are repetitive, while chorea movements are more random. A person with dystonia may ...