Final answer:
Flexibility is the ability to move joints through their full range of motion and is a vital health-related fitness component often overlooked. The step test assesses cardiorespiratory endurance.
Explanation:
Flexibility is the ability to move joints freely through their full range of motion. It is one of the health-related components of fitness, along with cardiorespiratory endurance and muscular endurance. The step test is used to measure cardiorespiratory endurance.
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