bodybuilding ? nah, dont do that…upper body work shouldnt kill you…but a push and pull exercise is necessary, the latts and chest are used in sprinting so to just ignore them would be silly…do them in a simular way you'd do the main lifts, maybe just less sets…and a lesser emphasis during comp time…
i agree that chest and lats are very important no matter what event and should be train with a press and pull movement.
