The benefits of strength training for youth are clearly documented. Yet teachers, fitness instructors, and youth coaches are often not sure how to proceed, and they end up watering down adult versions of strength-training programs. That is definitely not the way to go. But authors Avery Faigenbaum and Wayne Westcott, with their 50 years of combined experience in teaching youth strength-training classes and coaching, can tell you the way to go--and...