Some may not see it, but there is a big difference between body building and performance training. One difference is that body building is primarily done for aesthetic purposes, whereas performance training is done to improve certain physical skills. Another difference is that the muscles that are focused on. The body builder, in most cases, wants to build that muscle mass focusing heavily on the slow twitch muscles that help with raw strength and appearance. In the realm of performance training, you want to focus on the fast twitch muscles and the tendons. Performance training sometimes requires quick direction changes and explosive movements. For the aesthetic purpose, the body builder will also focus on keeping the body fat low to look more defined, whereas body fat only becomes an issue in performance training if weight class or poor performance become an issue. Now, I’m not saying that you won’t be aesthetically attractive doing performance training, but it is more of a side effect or after thought not a focus. Also, you do work strength into performance training, but it is more for the purpose of performing a certain physical activity. In the end they both have benefits, and it really comes down to what do you want in the end.