This work is designed as a textbook for middle school students, as well as a reference for PE teachers. It is a specific middle school version of the secondary school PE textbook, "Fitness for Life". It helps prepare students to live physically active lives, providing a foundation for lifelong health and fitness. Sections cover aerobics, active sports, recreation, flexibility, muscle fitness, body composition and energy balance. Activities get students involved in physical activity and reinforce concepts presented in the book. It includes over 100 full-colour photos and illustrations.