Orienteering is a sport modality that is not very professionalized, which is the main reason why scientific research has not focused on its study. For this reason, the book "Physical-physiological performance factors" has been carried out with the aim of defining, for the first time, all those variables that athletes, coaches and physical trainers must take into account when planning their training. The benefits of this knowledge will result in more realistic and efficient training and an improvement in the competitive results of these athletes.