This exercise, called "banded bridge," helps to tighten your buttocks and hamstrings while also stretching the fronts of your hips and thighs. You can maximize your results by using rubber tubing or a resistance band. This is a great move to do whenever your lower back feels stiff from prolonged sitting.
1 Lie on the ground with your knees bent and your feet hip-width apart. Hold the resistance band across your hips, where the fronts of your thighs meet your torso. For more resistance, check to see that the band is stretched over your hips. Inhale.