Quadriceps Setting. This exercise helps to strengthen the quadriceps muscle (the big muscle on the front of the thigh), an important stabilizer of the knee. click to enlarge. Lie on your back with the leg you want to exercise straight. Place a small rolled towel underneath the knee.
Hallucinogens can cause an excited catatonic state, including 3,4-methylenedioxymethamphetamine (ecstasy) and phencyclidine (angel dust). Carbon monoxide poisoning can cause catatonia due to damage to the basal ganglia.
Features[edit] Patients with catatonia may experience an extreme loss of motor skill or even constant hyperactive motor activity. Catatonic patients will sometimes hold rigid poses for hours and will ignore any external stimuli. Patients with catatonic excitement can suffer from exhaustion if not treated.