Physical activity remains a critical area of research as we consider cost-effective measures for lowering the chronic disease epidemic worldwide. This volume summarizes essential topics in physical activity and community health and guides public health practitioners and researchers in understanding the positive impact that physical activity has on a host of disease states. The book includes historical insights into physical activity and health, public health philosophy, and approaches to understanding health concerns. It discusses the application of public health strategies to increase physical activity in youth, adults, and older adults and discusses effective policy and environmental approaches applied to various settings.