Spasticity causes chronic muscle tightness and stiffness that keep muscles contracted, reducing mobility and affecting both large movements like walking and fine motor skills like eating or writing.

Spontaneous muscle twitching can be an early symptom of ALS and a sign that motor neurons are damaged. But other causes can also contribute to muscle twitching. Consulting a doctor can help identify ...

Spasticity is a symptom or complication of many different neurological disorders in which normal muscle movement patterns are disrupted, and muscles contract, or tighten, involuntarily. In a healthy ...