What property does agility primarily improve in an individual?

Agility primarily improves speed and quickness, which are essential components of athletic performance and overall fitness. Agility involves the ability to rapidly change body position or direction, which is crucial in many sports and physical activities. It combines elements of speed, coordination, balance, and reflexes, allowing an individual to respond quickly to dynamic situations. Training for agility often includes drills that enhance reaction time and improve overall athleticism, making it a vital skill for athletes and active individuals.

While muscle mass, body composition, and flexibility are important aspects of physical fitness, they are not the primary focus of agility training. Muscle mass refers to the amount of muscle in the body, body composition relates to the proportion of fat and non-fat mass, and flexibility pertains to the range of motion in joints and muscles. Each of these components contributes to overall fitness, but they do not directly enhance agility as much as speed and quickness do. Therefore, the primary benefit of agility training is the improvement in speed and quickness, which are critical for effective performance in many physical endeavors.