If you are interested in this from an Ancient Greek military context, I can recommend some earlier threads by u/Iphikrates. In this thread he writes of what bodies those in the Spartan military would have had, noting that athletes were not seen as good soldiers since agility and endurance was preferred over strength. He also tears down the concepts of "great warriors" or "heroes" on the battlefield in these two threads. More examples can be added of course, and new answers are also much appreciated!