Split hand syndrome is a potential sign of amyotrophic lateral sclerosis (ALS). This means that some of the muscles in the hand are weak and thin (atrophied), while others are less affected.

Spinal muscular atrophy or “SMA” for short is a terrible disease in which a genetic mutation causes certain nerves responsible for sending signals to muscles to degenerate. This leads to muscles ...

The loss of muscle mass, or muscle atrophy, is a relatively common condition in today's aging and increasingly sedentary societies. While the disuse of muscles is the most frequent catalyst for muscle ...

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 ...