Exercising with Diastasis Recti (Ab Separation)

The good news is that Max Workouts are designed to tighten your core by using full-body, functional movements. There’s no crunching or sit-ups. However, there is some twisting (lunge with a reach, for example), but it is easily modified. You can skip the reach portion of the move or reduce your range of motion.

Any movements that encourage compression of the stomach muscles are  not recommended for women with DR.  You'll want to focus on drawing your stomach  in and avoid moves that cause it to pooch out.  

Although I love plank moves for adding ab definition, unless you can  keep your stomach drawn in during a plank, I don't recommend doing them (there are plank moves in my ab/core conditioning routines, but these are add-on routines and are not required).  Planks are challenging (in a good way!), but it's easy to forget to  draw your core in during the exercises, so please be mindful of that if you decide to try those moves.  

If you can't draw your stomach in during a plank, try doing the plank moves in an  elevated position.  For example, if you are in a plank, instead of putting your hands on the floor, put them on the end of a high, stable surface (e.g., a coffee table) instead.