Repeated exercise, or wasting, can change the way key genes work.

For most of us, everyday life is characterized by a lack of movement. But those long hours sitting at a desk, commuting by ...

Muscle loss can creep up faster than you think. Whether it’s due to injury, life changes or simply taking a break from working out, the body begins to change almost immediately when you stop using it.

Many people who were active when they were young end up inadvertently taking a long break from sport in adulthood. Perhaps you lifted weights in your teens and 20s, then had kids and didn't get back ...

This image from video provided by UPMC and University of Pittsburgh Health Sciences shows Doug McCullough, who has spinal muscular atrophy, during tests of experimental spinal cord stimulation to ...

The device has so far been tested on 3D-printed leg molds which were filled with ground beef to simulate the calf muscle in an average-size person. It was found to accurately detect small-scale ...

WASHINGTON (AP) — Three people with a muscle-destroying disease destined to worsen got a little stronger – able to stand and walk more easily – when an implanted device zapped their spinal cord. On ...