Stiff Person Syndrome (SPS) is a rare, progressive neuromuscular condition in which a hyperactive startle reflex results in constant painful contraction of the muscles, thus causing violent spasms of the voluntary muscles, particularly the muscles of the back and upper legs. These spasms are capable of slamming the victim into walls and furniture. The disorder's cause is unknown. Also: Moersch-Woltmann Syndrome, Stiff Man Syndrome

	Stiff Man Syndrome The Condition "...Stiff Man Syndrome is a neuromuscular condition in which a hyperactive startle reflex results in the contraction of the muscles, thus causing violent spasms..."

Last updated: Feb 28, 2008