Which of the following is NOT one of the five components of health-related fitness?

The five components of health-related fitness include cardiovascular endurance, muscular strength, muscular endurance, flexibility, and body composition. Agility, while an important aspect of overall fitness, is primarily categorized under skill-related fitness. Skill-related components focus on performance and are aimed at enhancing athletic performance, while health-related components are vital for overall health and disease prevention. Therefore, agility does not fall within the five components associated with health fitness, making it the correct answer in this context.