I believe you'll develop speed via strength work which includes hill running, either repeats, or running hilly courses as the Kenyans do on a steady basis
Bill RodgersMy guess is many top athletes, distance runners included, use performance-enhancing drugs, enough so that the problem must be tackled.
Bill RodgersI believe in keeping running simple and, in regard to shoes, that would mean no gimmicks, unnecessary cushioning, etc
Bill Rodgers