What are the major indicators of impairment during the One-Leg Stand test?

The major indicators of impairment during the One-Leg Stand test are primarily focused on the subject's ability to maintain balance and stability. Swaying and using arms for balance are critical signs of impairment because they demonstrate a loss of motor coordination and an inability to maintain the required posture. When a subject exhibits these behaviors, it indicates that their physical and cognitive faculties may be compromised, which is a significant sign of impairment.

In the context of the One-Leg Stand test, a person is required to stand on one leg while keeping the other leg raised to a specific height for a duration of 30 seconds. Impairment can manifest through actions such as swaying from side to side or utilizing arm movements to keep from falling, which are not expected from a sober individual. This performance can provide law enforcement with important observations regarding a person's level of intoxication or impairment.

The other options reflect behaviors or symptoms that may suggest impairment but do not specifically align with the mechanics and objectives of the One-Leg Stand test. For instance, stopping and starting repeatedly pertains more to different testing protocols and does not reveal balance issues during the One-Leg Stand. Similarly, increased heart rate and sweating are physiological responses that are not directly measured in this test. Lastly, inability