摘要：The concept of progressive resistive exercise (PRE) is one of the major principles of athletic training. Development of strength and other physical elements during conditioning and orthopedic injury rehabilitation depends on proper application of the PRE principle. A related concept, progressive skill development (PSD) is essential in educating athletic training students. Indeed we might say that the competence (strength) of a new graduate depends on proper application of the progressive skill development principle.ft Approaches.
