As much as I give the term “core training” a hard time, it actually is important. It is not the concept that I have a hard time with, it is the crazy marketing and hype. Having a strong core means more than abs, so having a strong low back and glutes are just as important. How you train these areas is more important than debating concepts.
My colleague Cem Eren helped me take some video of incredible core exercises with our Ultimate Sandbag that accomplish all the goals of functional core training. See if you can keep up with this workout as it leaves no muscle unturned! Don't worry even if you aren't a fighter you can still turn your core into the piece of steel that fighters are known for!