Dynamic Abs:

Whole Body Fitness

Bonus

Bonus: Dance Bands Whole Body Workout


Abdominal Muscles, while breathing in and out. 

The pelvic floor shown in imagery: 
When inhaled the tension increases, like the floor of a trampoline. 
The slight suction effect of the diaphragm 
during exhalation is shown as a plunger.

Training Function with Anatomy, Movement & Imagery: The Franklin Method