Using powerful new visualization technologies, researchers have captured the first 3-D images of the structure of a key muscle receptor, providing new insights on how muscles develop across the animal ...

Time under contraction is not directly measured in a typical weight training program. Most people really don't even think about the number of seconds a given muscle is forced to work. Indirectly, ...

A research group has uncovered important details about how platelet-activating factor (PAF)—a powerful molecule involved in inflammation and allergic reactions—triggers contractions in the smooth ...

Though many people experience muscle twitching, it's often incorrectly identified as a muscle spasm. While both are involuntary contractions of a muscle, muscle spasms and muscle twitching aren't ...

Science reveals that your lower legs act as a secondary circulatory pump, pushing blood against gravity to protect your heart ...

Ken Nosaka is a Friend of The Conversation. One of the most popular new year’s resolutions is to exercise more. Many of us set ambitious goals requiring a big, regular commitment, but then abandon ...