Demonstrated here is one of the most basic and user-friendly ways to increase hip rotation. Use the block and push your knees into it while we drive out from the hip. Keeping the other ankle in dorsiflexion, (toes to the face) try to move as far away from the block with the active hip while remaining in a stable trunk position without arching the lower back. Try 4 to 6 reps each side with a 5 second end range hold. For people with problematic sciatica, do this every single day.