Popsugar Fitness Workouts Best Bodyweight Core Exercises Here Are 43 Best Bodyweight Exercises to Transform Your Abs July 28, 2020 by Jenny Sugar View On One Page Photo 26 of 44 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 26 Crunchy Frog Begin sitting, balanced just behind your sits bones, and rock back slightly to lift your feet off the floor; gently pull your knees to your chest. Exhale, pull your navel to your spine, and lean back slightly as you open your arms to the sides and straighten your legs. Inhale and return to the starting position to complete one rep. Previous Next Start Slideshow WorkoutsStrength TrainingBodyweight ExercisesAb Exercises