Catatonic Rigidity
Catatonic rigidity is a type of catatonia characterized by stiff, immobile postures that cannot be easily moved. Sufferers of catatonic rigidity have flexibilitas cerea or waxy flexibility which refers to a bodily state in which you can move a person's limbs and they will stay wherever you move them. If you physically moved the arm of someone with catatonic rigidity it would stay wherever you moved it. This condition is seen in catatonic schizophrenia and mood disorders with catatonic features.