LSD

Long slow distance was a term coined to describe running at a steady pace to develop the aerobic base. Unfortunately as it evolved the emphasis was on SLOW. This is a huge mistake. The result was proficiency at running slow for a prolonged period. This has little carryover to racing, remember the goal of training is to prepare to race. The emphasis in this method should be on long steady distance. Select a degree of effort that allows the runner to run a steady effort for the duration of the distance with good running mechanics. This type of training needs to be a means to an end. Unfortunately for many runners it has become an end to itself.