Muscle tone increasing in patient trying to relax the muscles is seen in?

Muscle tone increasing in patient trying to relax the muscles is seen in Paratonia. Paratonia (gegenhalten) is increased tone that varies irregularly in a manner seemingly related to the degree of relaxation, is present throughout the range of motion and affects flexors and extensors equally; it usually results from disease of the frontal lobes. Paratonia can be distinguished from spasticity by observing a lack of exaggerated deep tendon reflexes and a lack of a clasp-knife response. It can be distinguished from Parkinsonian (aka "lead-pipe") rigidity in that the amount of resistance in Parkinsonian rigidity does not vary with the velocity of the movement.