Popsugar Fitness Summer 5-Move Ab Workout From Tone It Up Feel Confident as Hell at the Beach With 5 Flat-Ab Moves April 20, 2017 by Dominique Michelle Astorino View On One Page Photo 4 of 5 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 4 Tuck Jump They told us that this move "tones your lower abs, booty, and quads while increasing your heart rate and metabolism!" Begin in a squat position with your legs hip width apart and arms behind you, making sure your knees don't go past your toes. Swing your arms forward and jump into the air, bringing knees up to meet elbows in front of your core. Land softly back on your feet. Complete 15 reps. Previous Next Start Slideshow SummerWorkoutsStrength TrainingTone It UpBodyweight ExercisesAb WorkoutsGIF Exercises5-Minute WorkoutsFull-Body WorkoutsAb Exercises