Upper and Lower Back Stretch
1. Sit on the floor or on an exercise mat, with your legs extended in front of you, your ankles bent at a 90-degree angle so that your toes point towards the ceiling.
2. Loosely clasp your hands, and rest your forearms on your knees, bending your torso forwards from your hips.
3. Without bouncing continue to lean forwards, concentrating on stretching your entire spine.
4. Hold at your lowest point for about 15 seconds, and repeat.