What is NOT a clue of impairment in the instruction phase of the one leg stand test?

In the one leg stand test, an individual must balance on one leg while keeping the other leg elevated in front of them. The instruction phase is crucial for assessing the participant's understanding and readiness to perform the task. Starting too late does not reflect any physical or mental impairment during the actual performance of the test; rather, it simply indicates that the individual was delayed in beginning the task.

On the other hand, putting the foot down, using arms for balance, and jumping to maintain balance are direct actions that suggest difficulty in coordination and balance, which are key indicators of impairment. These behaviors can provide observable evidence that the participant is struggling with the task due to intoxication or impairment. Therefore, the act of starting too late is not a functional clue of impairment within the context of the one leg stand test.