Which clue associated with the One Leg Stand indicates poor balance?

The clue indicating poor balance during the One Leg Stand is the behavior of swaying while balancing. This action demonstrates an inability to maintain a stable position on one leg, which is essential for this test. A subject who sways shows signs of instability and difficulty in maintaining their center of gravity, which can suggest impairment.

Maintaining balance requires a combination of physical coordination and mental focus. Swaying indicates that the person may be struggling to control their body movements, which can be influenced by factors such as intoxication or other impairments.

Other behaviors noted in the options, such as stopping while walking or putting a foot down, also reflect balance issues; however, swaying is particularly indicative of ongoing difficulty in maintaining balance. Hopping can suggest an attempt to regain stability, rather than a consistent inability to balance as demonstrated by swaying. Thus, the correct answer captures the essence of poor balance specifically during this testing scenario.