The eighth edition of Understanding Motor Development: Infants, Children, Adolescents, Adults provides readers with both an explanatory and a descriptive basis for the processes of motor development. Covering the entire lifespan, this text focuses on the phases of motor development and provides a solid introduction to the biological, affective, cognitive, and behavioral aspects within each developmental stage.Readers are presented with the most up-to-date research and theory, while the Triangulated Hourglass Model is used as a consistent conceptual framework that clearly defines infant, childhood, adolescent, and adult motor development. Key Features:-- In order to reflect current research and professional viewpoints, all chapters have been extensively revised, particularly those focused on the development of fundamental movement, perceptual-motor development, and motor skill intervention. -- Age-group-specific chapters in the Eighth Edition feature an enhanced focus on intervention. -