Bridge pose on a block with props: This version of bridge trains pelvic stability from side to side. Place your sacrum on a block, place your pelvis in a posterior tilt. Press the foot that's on the floor strongly down, which will help engage the hamstring and glute. Squeeze the block in between your thighs, and lift one leg up. Keep squeezing the block, and keep your pelvis level - use your hip points as your guide. Hold for five breaths, then release, and repeat on the second side. Repeat both sides three times.