Training abs doesn’t have to be a long tedius process. Select 3 exercises and do 1 minute of each for 3 rounds. This is a wonderful basic crunch. Make sure to tip your pelvis under so that your lower back is pressed firmly into the floor or bench. The starting position is with your shoulders OFF the floor / mat. Exhale as you crunch upward toward the sky, hold a beat, inhale as you return to starting position.