Adolescent athletes may be at risk of restricted growth and delayed maturation when combining intense training with insufficient energy intake. Because catch-up growth commonly occurs with reduced training, final adult stature is generally not compromised. However, in athletes with long-term, clinically delayed maturation, catch-up growth may be…

A review of research studies suggesting that girls who exercise vigorously may experience disruptions in maturational processes suggests that carefully-monitored sports participation and training have no effect on growth and maturation. (Author/CB)

Excessive physical loading may disrupt normal osseous development and inflict injury. This is particularly applicable to young female gymnasts, for whom the injury rate is astonishingly high at advanced levels of competition. There is a need for a more extensive database using a longitudinal approach. (MT)

Plyometric exercises or drills combine speed and strength to produce an explosive-reactive movement or increased power. Some world-class athletes have used plyometric-training in sports such as high-jumping, hurdles, football, baseball, and hockey. The method is still considered experimental. Sample exercises are described. (JL)

Believing that synthetic human growth hormone (hGH) will lead to athletic prowess and fortune, some parents and young athletes wish to use the drug to enhance sports performance. Should hGH become widely available, its abuse could present many problems, from potential health risks to the ethics of drug-enhanced athletic performance. (JL)

The results of 2 studies determining the effects of body checking in Pee Wee hockey indicate variability in player size and strength is reason to avoid this practice. In leagues allowing body checking, 55 percent of all injuries and greater frequency of serious injury were a result of body contact. (SM)

This article discusses the SCAM Program, a screening method that matches athletes in grades 7 to 12, ages 12 to 19, by physical maturity, fitness, and skill instead of age. (JS)

The article looks at the 1979 physical development program for cadets at West Point's U.S. Military Academy, noting adjustments made to the physical education program for women and comparing physical abilities of female cadets in 1979 and 1989. Standards are adjusted as fitness test scores improve. (SM)

As weight training becomes increasingly popular with children and adolescents, physicians need to advise patients and parents about what is safe and what is not. Young people who adhere to a well-supervised, progressive strength training program can improve their strength and improve performance in other sports. (SM)