It has been one of the big "buzz words" in popular training for years now. It is also an emphasis for many high level / professional athletes. I don't think the "mainstream" and the professional athlete think of core training in the same way however and are working toward very different goals.

What do you all think of when you hear the term "core strength" or "core training?

Is it something that you emphasize in your own workout?

If not, why not?

If so, what types of exercises do you do?