As people get older, they often notice that their muscles don’t feel as strong as they once did. Many assume this is just a normal part of aging—that muscles naturally become weaker over time. However ...

While a gradual loss in muscle strength is a natural part of aging, for many older adults it's more than just feeling a little weaker. Sarcopenia -- a condition affecting nearly half of adults over 80 ...

Once the team made MuMuTAs work, they used five of them to actuate multi-jointed fingers in a robotic hand.

Arnold added that while all adults lose motor neurons as they age, he and his research team are learning that the muscle weakness linked with sarcopenia is less about the loss of the number of ...

Most causes of new onset muscle weakness are serious. True weakness points to diseases of the spinal cord or its nerves. Nerves carry messages from the spinal cord to the muscles in the arms and legs.

A common gripe among people when performing exercises like squats is that it hurts their knees, or that their knees are too ...

Thurman M. Wheeler, MD, of the Department of Neurology at Massachusetts General Hospital, is the senior author of a paper published in Nature Communications, "Analysis of human urinary extracellular ...

Later during her childhood, she frequently complained of significant muscle stiffness that was often followed by generalized limb weakness lasting 2–3 min, usually at the onset of physical ...

A weak pelvic floor is a common condition; some risk factors are age, pregnancy, chronic constipation and coughing. Working ...

NASA astronaut Sunita Williams is set to return to Earth after an extended stay aboard the International Space Station (ISS).