A Crunch-less Ab Workout – Celebrity trainer Tanja Djelevic shows host Judy Greer an abdominal workout that avoids dreaded sit-ups.
A crunch-less includes: ab-plank, rotating ab plank, and reverse fly back extension.
Ab-plank is a front-core workout.
A rotating ab-plank is an oblique (side-abdominal) workout.
A reverse fly back extension is a back core workout.
You can do 10-15 seconds per exercise, repeat 10 times, and rest between each interval.