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.
Catatonia has been reported to result from a variety of medical conditions, including metabolic, neurologic, and substance-induced disorders. A review11 of 261 published cases of catatonia found that in 75% of cases there was no relevant psychiatric disorder associated with the catatonic state.