Begin by lying on your side. Bring the knee of your top leg towards your chest until it is bent to around 90 degrees and lay it on top of a ball or pillow. Start your stretch by placing your top arm at your top knee. Keeping your elbow straight, bring your arm up and back, making sure to keep your top knee in place, allow your upper body to roll backwards, feeling a stretch in your upper back. Hold as directed. Repeat as directed.