Run a finger down the center of the forearm, curl the fingers, and flex the wrist. For many people, a thin cord jumps into view, tight as a guitar string under the skin. It feels deliberate, almost ...
Your arms contain many muscles that work together to allow you to perform all sorts of motions and tasks. Each of your arms is composed of your upper arm and forearm. Your upper arm extends from your ...
The shoulder muscles are responsible for maintaining the widest range of motion of any joint in your body. This flexibility is also what makes the shoulder prone to instability and injury. Muscles, ...