Popsugar Fitness Workouts 20-Minute Bodyweight Abs and Glutes Workout Target Your Core and Glutes in Just 20 Minutes! August 30, 2021 by Jenny Sugar View On One Page Photo 1 of 8 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 Set 1: Side Plank + Leg Lift (Right) Begin in a side plank position, resting on your right forearm, balancing on the outside edge of your right foot. Flex both feet if you can and either rest your top hand on your upper hip or extend it in the air. Keeping your spine long and your abs engaged, lift your left leg into the air. Then slowly lower it back to your bottom leg. This counts as one rep. Continue doing leg lifts for 30 seconds, followed by a 15-second rest. Previous Next Start Slideshow WorkoutsStrength TrainingHome WorkoutsBodyweight WorkoutsAb WorkoutsButt ExercisesBeginner WorkoutsFull-Body Workouts20-Minute WorkoutsAb Exercises