In recent years there has been a significant increase in the number of youth participating in organized and competitive sports. Recent studies have supported the participation of preadolescent athletes in strength training to improve health and performance in sports. This article presents the most recent data available to help youth develop a safe and effective strength training program. Variables, such as the recommended rate of progression, the number of sets and repetitions an athlete should perform on each exercise, and how often an athlete needs to workout to avoid loss of strength achieved during a period of strength training are presented.