Cardiovascular efficiency muscular strength and endurance flexibility and body composition are all considered health-related factors. Cardiovascular Efficiency is the ability of the body to maintain physical activity over a prolonged period of time, muscular Strength is the capacity of your body's muscles to generate extreme amounts of force in a short period of time utilizing anaerobic energy, while flexibility is the ability to move a joint through its full range of motion, which depends on the elasticity of a muscle. All of them are important aspects of the physical fitness and are vital to a person's lifetime well-being.