Through an examination of data on injuries to the lower extremities of varsity high school players, this study sought to ascertain 1) whether modified cleats brought about a reduction in the number and/or severity of such injuries; and 2) whether there existed an optimum combination of equipment for reduction in the number and/or severity of such injuries. After two years of gathering data and identifying other variables, it was determined that the lowest rate of serious knee injuries was incurred by youngsters outfitted with either low shoes, disc heels and ankle wraps or low shoes, shortie cleats and no ankle support. Data showed that those players with previous serious knee injuries were reinjured at a rate of 15 to 17 times greater than youngsters with no previous injury. Recommendations included: 1) all players be outfitted with low shoes and modified heels, discs, or shortened cleats; 2) consideration be given to modifying sole cleats; and 3) extensive efforts be undertaken to improve the physical conditioning of all football players. (KJ)