Life Span Motor Development, Fifth Edition", is the only introductory textbook to use the model of constraints (or dynamical systems) approach in discussing reasons for changes in movement throughout the life span. This fully updated edition encourages students to observe and examine how the interactions of the individual, environment, and task affect changes in a person's movements. The principles of motor development are presented in a clear and accessible manner so that even readers with minimal movement science background will comprehend the material. "Life Span Motor Development, Fifth Edition", will give readers the foundation for continued study and real-world practice. The text begins by introducing students to the basics: motor development, the model of constraints, and the theoretical perspectives relevant in motor development research.