Which performance factor is associated with the ability to change direction quickly?

The ability to change direction quickly is best associated with agility. Agility is a crucial performance factor that encompasses the capability to move rapidly while maintaining control over one's body. It involves both speed and stability, allowing a person to start, stop, and change directions effectively without losing balance.

When engaged in activities that require quick movements, such as sports or certain military maneuvers, agility becomes essential. It is not just about moving fast; it's about the efficiency and precision of those movements when altering direction, which is the hallmark of agility. This makes it the most relevant factor when considering the skill of changing directions swiftly and effectively.

Balance, while important in maintaining stability during movement, does not specifically address the skill of rapid directional change. Coordination involves the effective use of multiple body parts in a harmonious way but is also less focused on the quickness of movement in varying directions. Speed refers primarily to the rate of movement, without the additional aspect of maneuverability that agility encompasses. Thus, agility stands out as the most accurate descriptor for the ability to change direction quickly.