Popsugar Fitness Crossfit 10-Minute Bodyweight Core Workout This Intense 10-Minute Bodyweight Workout Will Make Your Core Quake 14 October, 2019 by Jenny Sugar View On One Page Photo 2 of 5 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 2 Bird Dog (Left Arm, Right Leg) Get on all fours, with your knees under your hips and your hands under your shoulders. Remember to keep abs engaged and keep your back flat. Reach out with your left hand and extend your right leg out behind you. Hold here for 60 seconds, keeping the core strong. Previous Next Start Slideshow CrossFitBeginner Workouts10-Minute WorkoutsAb WorkoutsStrength Training