A new study explains how a tiny enzyme switch helps muscles make energy during exercise and may even connect to diabetes risk ...

When you take a muscle through the full range of motion, it goes through three phases of muscle contraction: eccentric, isometric, and concentric. Placing more attention on one phase can yield ...

Supplements for muscle recovery include creatine, turmeric, and vitamin C. Many athletes use these to improve performance and ...

Learn why pickle juice is the athletes drink of choice for cramps, how it works, and whether it could also relieve menstrual cramps.

In a serendipitous discovery, UC San Diego researchers using cryo-EM technology captured the first visualizations of the 3-D structure of the muscle acetylcholine receptor in fetal and adult muscles.

8-minute bed routine to rebuild muscle after 65, from a certified personal trainer, using low-load strength moves and time ...

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 ...

While leg cramps are often benign and temporary, in some cases, they can indicate underlying health issues that require immediate medical assistance.

Add Yahoo as a preferred source to see more of our stories on Google. Why is it harder to build muscle as you age? DjelicS/iStock via Getty Images There is perhaps no better way to see the absolute ...

Muscle atrophy is the loss of muscle mass. Low physical activity, nutritional deficiencies, genetic factors, and some medical conditions may contribute. Muscle atrophy due to inactivity can occur if a ...