In the One Leg Stand test, what is the subject instructed to do?

In the One Leg Stand test, the subject is instructed to stand on one leg for 30 seconds. This test is designed to assess the individual's balance and coordination, which can be indicators of impairment. During the test, the subject must keep one foot raised approximately six inches off the ground while counting out loud for the duration of the 30 seconds. The test evaluates the subject's ability to maintain balance and follow instructions, which can be significantly affected by alcohol or drug use. Successful completion of this test without exhibiting signs of imbalance can suggest that the individual is not impaired, while difficulty in performing the task may indicate a level of impairment consistent with intoxication.