The document is a module on physical fitness from St. Louise de Marillac College. It discusses the importance of fitness to health and defines physical fitness. It outlines the three major components of physical fitness: health-related physical fitness including cardiorespiratory endurance, body composition, muscular endurance and flexibility; skill-related physical fitness including agility, balance, coordination, power, reaction time and speed; and physiological fitness relating to metabolic, morphological and bone integrity. It also describes three types of physical activities - aerobic, muscle-strengthening and bone-strengthening activities. Students are asked to write regular physical activities and answer questions to evaluate their understanding of the topic.