Popsugar Health & Fitness Health Low Impact Glute and Bum Exercises For Knee Pain 6 Moves That Prove You Don't Need Squats to Build Your Best Bum 14 February 2018 by Florie Mwanza View On One Page Photo 4 of 6 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 4 Lying Hamstring Curls Lie flat on your back with an exercise ball under your heels. Draw your hips up to get in starting position. With your feet flexed, dig your heels into the ball and use your hamstrings to draw the ball towards your body while squeezing your bum. Keep your hips bridged and your glutes squeezed as you curl the ball in and then roll it back out away from your body. Previous Next Start Slideshow HealthFitness TipsWorkoutsFitness