Lydiard was not the first at anything. All of Lydiard's ideas came from pioneers before him. For example, in the 1920's, another Arthur, Arthur Newton, "was an early pioneer of the concept of high mileage training at relatively slow speeds (later called long slow distance)." According to a presentation from the Lydiard Foundation, they acknowledge several Lydiard influences in a historical timeline, putting Lydiard's contribution into historical perspective:
Evolution of training:
o Alfred Shrubb, Walter George, Arthur Newton, etc. (early 1900s) - Aerobic Endurance.
o Paavo Nurmi (1920s~1930s) - Mixing forest trail and road running with anaerobic.
o Jack Lovelock (mid 1930s) - Peaking.
o Gosta Holmer, Gunder Haegg ^ Arne Anderson (1930s~1940s) - Fartlek.
o Dr. Woldmar Gerschler, Dr. Hans Reindell & Rudoplh Harbig (1940s~1950s) - Anaerobic interval training.
o Emil Zatopek (1950s) - Aerobic base plus anaerobic development. Balance.
o Mihaly Igloi (1950s~1960s) - Use of short sharp repetitions.
o Percy Cerutty and Arthur Lydiard (1950s~1960s) - Marathon type conditioning. High VO2max.
o Arthur Lydiard (1960s to present) - Co-ordination of training. Peaking.
With respect to "rational" and "scientific", Lydiard developed his approach to training based on a decade of extensive research of previous ideas as well as extensive "trial and error" using detailed observations as feedback to improve and refine the system, which is both rational and scientific. Decades of world class results were proof of their validity, as well as historical acknowledgement from great coaches of today and the magnitude of similarities with today's methods to Lydiard's.
Lydiard was wrong wrote:
Lydiard was wrong about everything. He was just the first training geek to systematize a passionate, albeit nonsensical training theory for which there is still no rational proof. I use the “rational” qualifier because people will inevitably resort to the insanity of invoking the popularity of his ideas and their use by elite athletes as proof of their validity. My only response to which is to say that some people think rationally and some don’t, and it’s clear which category most runners fall into. Lydiard’s ideas are popular because running culture is irrational and mystical, not logical and scientific.