What is the definition of agility in the context of fitness?

Agility in the context of fitness refers to the ability to effectively and efficiently change direction while maintaining control and balance. This skill is crucial in various sports and physical activities where quick movements are needed, such as in basketball, soccer, or martial arts. Improving agility can enhance overall athletic performance and is typically achieved through specific training drills that focus on coordination, speed, and reaction times.

In contrast, the other choices involve different aspects of physical fitness. Running at high speeds pertains more to sprinting or speed endurance, maintaining speed over distance relates to aerobic fitness and stamina, and lifting heavy weights is associated with strength training. While all these elements are important in a well-rounded fitness program, they do not encompass the specific definition of agility.