dragonsbarbelle: crossfittinhawaiiantexaschick: The Ten Principles of Physical Fitness Cardiovascular/Respiratory Endurance: The ability of body systems to gather, process and deliver oxygen. Stamina: The ability of body systems to process, deliver, store and utilize energy. Strength: The ability of a muscular unit, or combination of muscular units, to apply force. Flexibility: The ability to maximize the range of motion at […]