Start by lying on your back. Keep your feet shoulder-length apart with your knees bent and feet flat on the floor. Start with your hands at your sides, palms down, on the floor. Inhale and push your hips up. Keep your head, neck and shoulders flat on the floor. Place your hands on your back, pointing fingers toward your lower back and keeping the thumbs on your sides. Breathe deeply. For a more advanced option, try walking your feet out further while in the bridge pose. Hold the pose for 30 seconds. Then walk your feet back. Then move your arms to your sides on the floor. Lower your hips.
If you have injuries or if you're concerned about exercising, consult with your health care provider before starting a yoga program.