Which phase of a seizure involves contracted and tense muscles?

The phase of a seizure that involves contracted and tense muscles is the tonic phase. During this phase, the muscles become stiff and rigid, which can lead to significant muscular contractions throughout the body.

In the context of a generalized tonic-clonic seizure, the tonic phase is characterized by the individual's body becoming completely rigid, usually lasting for several seconds. This muscle stiffness can sometimes be mistaken for a person having an injury or can appear as if they have lost control of their bodily movements.

Understanding the characteristics of each phase is crucial in recognizing and providing appropriate care for someone experiencing a seizure. The tonic phase is followed by the clonic phase, where rhythmic jerking movements begin, highlighting the progression of the seizure's phases. The preictal phase refers to the aura or early symptoms that may precede a seizure, and the postictal phase involves the recovery period after the seizure has ended, both of which do not involve the characteristic rigidity of the muscles.