HRE wrote:
Joe Henderson is always credited or blamed for the latter. Joe says the idea for it as a way of training mostly came to him after facing Ed Winrow who had been fifth in the '68 OT Marathon and that he took the term from Browning Ross.
This is what Dr. George Sheehan said regarding Joe Henderson's 'new method' of L.S.D: "The LSD method of running that Henderson espouses is not new. He has simply systematized it and, in effect, founded a new order, a new sect that has bid pain, suffering and sacrifice good-bye. Joe Henderson is a revolutionary not because his writings have produced a wave of faster runners, but because he has spawned happier ones.”
https://www.goodreads.com/book/show/1426106.Long_slow_distance_