It can look like a tightly folded arm with a flexed wrist and tightly curled fingers or like a pointed foot and curled toes. These involuntary movements caused by spasticity have different names.

What spasticity is, is an abnormally contracted or overtight muscle. So the muscle is like this. It's like a little ball that doesn't want to be stretched. And so that's why you have stiffness.

MS also makes movement and gait, or the process of walking, difficult. As the weakness and muscle spasticity progress, people with MS are likely to experience stiffness and aching. In MS ...

Background OnabotulinumtoxinA has demonstrated significant benefit in adult focal spasticity. This study reviews the injection patterns (i.e., muscle distribution, dosing) of onabotulinumtoxinA ...