Popsugar Fitness Workouts Easy 30-Minute Workout This Is the Easiest 30-Minute, Equipment-Free Workout Ever — No, Seriously June 25, 2018 by Laura Arndt View On One Page Photo 8 of 15 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 8 Glute Raises Target Muscles: Glutes. Start on all fours on your hands and knees. Keeping your back straight and your abdomen tight, bend a knee and raise your leg up and down toward the ceiling. Continue, slow and controlled, for 30 seconds, then switch sides. Previous Next Start Slideshow WorkoutsStrength TrainingBodyweight WorkoutsBeginner Workouts30-Minute WorkoutsFull-Body Workouts