Originally Posted by BendtheBar
Complex topic. Not always simple answers to the questions.
Split training forced all exercises to be placed into body part boxes, so that they could be assigned "properly" for programming. An unfortunate consequence of this is that over the years certain compound exercises have grown to be associated with a single body part part, and not seen effective for others.
A lot of the materials I read in the bodybuilding genre over the years placed deadlifts in a "lower back box". Some people simply interpret this as meaning it simply not a good trap builder.
Bench press is another great example. The bench press builds amazing front delts, better than any front lateral exercise I've ever seen, but you rarely hear anyone talking about it because it belongs in the "chest box."
does this thinking come from certain sectors of the fitness industry that stand to make significant financial gains
if every single muscle needs to be worked from multiple angles than more equipments is required , a gym membership becomes a must and gyms can train a greater number of people in a shorter time frame.