There are never-ending ways of working your abs, but it is generally harder to do lower abs training and exercises. Your obliques and upper abs tend to get worked out much better from many popular exercises, whereas the lower abs are more difficult to focus.
For technical purposes, we don’t use “upper abs ” or “lower abs” separately. When people talk about either area, they are simply referring to different rectus abdominis areas.
The rectus abdominis is a muscle running on either side of your abdomen vertically from your sternum to your pelvis. You think about it when you take a picture of your 6 pack abs.
But one part of the rectal abdomen can be primarily activated, we mean the lower area, while the upper area is mostly chilling. The portion of the involved muscles will be determined by your movements and if your working out more your lower abs or upper abs.