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 ...

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

Every sport has specialized training, specialized gear, specialized nutrition. Heck, every niche of every sport is specialized--the training an 800-meter runner does is worlds away from that of a ...

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.

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 ...

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 ...

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