Which of the following is NOT a component of physical fitness?

Fatigue resistance is not typically considered a standard component of physical fitness. The traditional components of physical fitness include flexibility, muscular strength, and cardiovascular endurance.

Flexibility refers to the range of motion in the joints and the ability of muscles to lengthen. Muscular strength relates to the maximum amount of force that a muscle or group of muscles can exert against resistance. Cardiovascular endurance is the ability of the heart, lungs, and muscles to perform efficiently during physical activity.

Fatigue resistance, while important in terms of overall endurance and performance, does not fit within the established categories of physical fitness components that are commonly used to assess an individual's fitness level. Instead, it can be seen as a quality related to endurance or stamina in various activities, but it does not stand alone as a primary component like the others mentioned.