Popsugar Fitness Workouts Beginner Circuit Workout A 30-Minute, Calorie-Burning, Beginner Strength-Training Workout November 9, 2018 by Tamara Pridgett View On One Page Photo 13 of 14 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 13 Circuit 2, Exercise 5: Straight-Leg Bridge With Stability Ball Lie flat on your back and place the ball under your heels, with your knees slightly bent. Press heels firmly into the ball to raise your hips off the ground, coming into a bridge and actively squeezing your glutes as you lift. With control, slowly release your bum back down to the floor. This counts as one rep. Complete 15 reps. Previous Next Start Slideshow Fitness TipsWorkoutsStrength TrainingBodyweight ExercisesBodyweight WorkoutsHIITButt WorkoutsAb WorkoutsButt ExercisesTrainer Tips