NASM book Essentials of Sports Performance Training 2nd edition. This book will teach you how to create highly personalized, integrated training programs that enhance overall athletic performance. Since 1987, the Academy of Sports Medicine of America (NASM) has been the world leader in providing scientifically proven certifications and specializations. This book offers a systematic approach to designing training programs that help athletes at all levels achieve their goals using the NASM Optimum Performance Training (TM) (OPT(TM)) model. Incorporating information from our research institute and from qualified exercise professionals in sports improvement, we have developed a wealth of user-friendly content, new techniques and up-to-date scientific research, such as: – Training recommendations (metabolic energy system) and injury prevention information. – Sports psychology information. – Ergogenic aids, including four new substances you need to know about.