In this article. Spasticity is a muscle control disorder that is characterized by tight or stiff muscles and an inability to control those muscles. In addition, reflexes may persist for too long and may be too strong (hyperactive reflexes).n this article. Spasticity is a muscle control disorder that is characterized by tight or stiff muscles and an inability to control those muscles. In addition, reflexes may persist for too long and may be too strong (hyperactive reflexes).
US actor Ethan Cutkosky (of Shameless) is 17 years old (born August 19, 1999).
Jackson Duggar is 7 years old. He will turn 8 in May 2012. Jackson Duggar is 7 years old.