24.10 Weight-lifting injuries. Resis-tance training is a popular form of conditioning aimed at enhancing sports performance and is widely used among high school, college, and professional athletes, although its use for younger athletes is controversial. A random sample of 4111 patients between the ages of 8 and 30 admitted to U.S. emergency rooms with the injury code “weight-lifting” was obtained. These injuries were classified as “accidental” if caused by dropped weight or improper equipment use. The patients were also classified into the four age categories 8 to 13, 14 to 18, 19 to 22, and 23 to 30 years. Here is a two-way table of the results: