HOW: Start by lying on your back in the hook lying position with your knees bent and your feet flat on the ground. Place on hand over your chest and the other hand over your stomach. Focus on breathing in your lower abdomen area. Take slow and controlled breaths through your diaphragm. Your hand on your stomach should rise feeling your lower rib cage expanding as well.
FEEL: You should feel your core muscles working.
COMPENSATION: Don’t breathe in and out with your chest. You should not feel the hand over your chest moving much.