Spasticity (from Greek "spasmos" meaning "drawing, pulling", aka tightness, stiffness, pull of muscle) is a feature of altered skeletal muscle performance, with a combination of paralysis, increased tendon reflex activity, and hypertonia.

• Results from the loss of motor neurons, causing excessive muscle contractions
• Ultimately leads to hyperreflexia, an exaggerated deep tendon reflex
• Spastic CP is the most common form of CP, which is a group of permanent movement problems that don't get worse over time

• Baclofen, which acts as an agonist at GABA receptors, which are inhibitory. GABA's inhibitory actions contribute to its efficacy as an anti-spasticity agent