This book reports on cutting-edge digital technologies and their applications in physical activity and sport. Gathering selected chapters from the 1st International Conference on Technology in Physical Activity and Sport, held virtually on November 24-27, 2020, from Seville, Spain, it offers a practice-oriented and evidence-based perspective on how technologies can be used for evaluation and control of different parameter relating to sport, physical activity, and health. It covers how digital technologies can be applied for training and monitoring purposes, and for improving athlete's performance, how they influence sport habits in different populations, demonstrating their growing influence in sport businesses (such as fitness centers) and management, and provides new findings on the connection between physical activity and human health, suggesting some interesting directions for future studies. With a good balance of laboratory research and information relevant for professional trainers, this book will provide bioengineers, sport scientists, and physiotherapists with timely information and a multidisciplinary perspective on the use of digital technologies to improve fitness, wellbeing and health in different population groups.