Popsugar Fitness Fitness Tips David Kirsch Workout Tips 12 Moves Celebrity Trainer David Kirsch Says Every Woman Should Do June 25, 2018 by Lauren Levinson View On One Page Photo 18 of 28 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 18 Why it’s effective: “This is one of my favorite signature ab exercises. It really blasts your abs from every angle.” Previous Next Start Slideshow Fitness TipsWeddings