A powerful muscle in the lower body quietly supports the heart’s work every single day. Experts say it plays a far greater ...

Many studies have demonstrated covariation between muscle activations during behavior, suggesting that muscles are not controlled independently. According to one common proposal, this covariation ...

Hypotonia is the medical term for low muscle tone that doctors usually diagnose in infants. The condition is less common in adults. People sometimes call it floppy muscle syndrome. Usually, even when ...

A large study of middle-aged women shows that age-related changes in skeletal muscle are part of everyday life for women in their fifties. During this time, women transition from perimenopause to ...