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Spastic cerebral palsy is a disorder that involves muscle stiffness. Symptoms and signs may include difficulty walking, trouble manipulating objects, and vision, hearing, or speech challenges.

In cerebral palsy (CP), the spastic motor type is most common, associated with a velocity-dependent increase in muscle stiffness that precedes the development of fixed muscle contracture. In ...

Spasticity is a common consequence of upper motor neuron lesions such as stroke, cerebral palsy and multiple sclerosis, characterised by a velocity-dependent increase in muscle tone and ...

U.S. regulators have issued warnings to 18 websites that were selling fake or unapproved versions of Botox and similar wrinkle-relaxing injections. Researchers at the University of Ottawa have made a ...

Stiff person syndrome (also known as SPS, Moersch-Woltman syndrome, and stiff man syndrome) is a very rare condition that can cause your muscles to become rigid or spasm. This is a progressive ...

Though many people experience muscle twitching, it's often incorrectly identified as a muscle spasm. While both are involuntary contractions of a muscle, muscle spasms and muscle twitching aren't ...

Muscle relaxers help reduce muscle stiffness and pain from conditions like cerebral palsy and lower back pain. There are two main types of muscle relaxers: antispastics and antispasmodics. Muscle ...

Spasmodic dysphonia (or laryngeal dystonia) is a rare voice disorder that is thought to happen when your brain sends abnormal signals to your vocal folds. It only affects about 1 in 100,000 people.