The document defines and provides tests to measure six components of skill-related fitness: agility, balance, power, speed, reaction time, and coordination. It describes popular sports that involve each component and gives instructions for tests to measure ability in side shuttles for agility, broad jump for power, sprints for speed, catching a dropped yardstick for reaction time, stick catching for coordination, and balance on a yardstick for balance. Researchers are named for each component to further study and define the tests.