This is one of the biggest fallacies surrounding youth strength training that can easily be debunked by looking at impact forces on the body. When an athlete hits the ground during a sprint stride or landing from a jump, they can strike the ground with forces ranging from three to nine times their bodyweight during each stride or jump. Comparatively, a "good" squat is approximately 1.5 times an athlete's bodyweight. Simply by comparing forces, it is doubtful weight training could affect
the growth plates of young athletes who are untrained. Training should be supervised by a competent coach, and the athletes need a level of maturity to pay attention and take weightlifting seriously; detrimental weightlifting injuries become practically nonexistent.