Although male kangaroos do appear to flex their muscles to show off their impressive figures, researchers in a 2013 study said it is not currently possible to determine whether or not such behavior is ...

Researchers developed a way to help people with amputation or paralysis regain limb control. Their optogenetic technique could offer more precise control over muscle contraction, along with a dramatic ...

For people with paralysis or amputation, neuroprosthetic systems that artificially stimulate muscle contraction with electrical current can help them regain limb function. However, despite many years ...