Yoga for the upper back. Many people suffer from an excessive forward curvature of the thoracic spine leading towards rounding or hunching in the upper back. Poor postural habits, sedentary lifestyle and prolonged periods sitting in front of computers can make you more susceptible to this condition. People with upper back rounding will often have tight muscles in their chest and weak muscles associated with the thoracic spine. This class features poses that will help to improve the health of your upper back. It includes poses that open your chest and strengthen the muscles in your upper back. The sequence will also help to improve overall postural awareness.