Which of the following is NOT a component of health-related fitness?

Bone density is not considered a direct component of health-related fitness. Health-related fitness typically includes components that directly contribute to overall health and the ability to perform daily activities. The main components generally recognized are cardiovascular endurance, muscular strength, flexibility, and muscular endurance.

Cardiovascular endurance refers to the body’s ability to sustain prolonged exercise and is crucial for heart and lung health. Muscular strength is the amount of force a muscle can produce, essential for physical tasks and overall bodily function. Flexibility involves the range of motion available at a joint, which can prevent injuries and improve performance in physical activities.

Bone density, while certainly important to overall health especially in preventing conditions like osteoporosis, is more related to the structural health of the bones rather than a fitness performance metric. Thus, when comparing to the others that are strictly functional fitness components, bone density stands out as not fitting within the typical definitions used in health-related fitness assessments.