Who were the most disciplined fighters ever?

Marciano took conditioning very seriously...Hagler was the man too in his earlier days he was something to marvel...as he got older he became a tough banger

 

The Tarahumaras' word for themselves, Raramuri, means "runners on foot" in their native tongue according to some early ethnographers like Norwegian Carl Lumholtz, though this interpretation has not been fully agreed upon. With widely dispersed settlements, these people developed a tradition of long-distance running for intervillage communication and transportation. The long-distance running tradition also has ceremonial and competitive aspects. Often, male runners kick wooden balls as they run in "foot throwing" competitions, and females use a stick and hoop. The foot throwing races are relays where the balls are kicked by the runners and relayed to the next runner while teammates run ahead to the next relay point. These races can last anywhere from a few hours for a short race to a couple of days without a break. The Tarahumara also practice persistence hunting, using their ability to run extremely long distances (sometimes as far as 160km) to catch animals such as deer; the animals eventually tire and slow down, and the Tarahumara get close enough to the animal to kill it.

 

Your right in that taller people suffer from bad mechanics...its why baseball pitchers get hurt or can easily go into a rut. Tall men especailly 180 with bad mechanics will blow a knee, hurt their ankle and or foot. Ironically I think that is the same reason we rarely get a great Big man like Ali or Tyson.