This spring, be sure to consider the mobility and strength required to do yard work and play sports like baseball or golf. The mid-back, or thoracic spine, is designed to twist, allowing for smooth motion while doing these activities. If your thoracic spine lacks the ability to twist, or has strength deficits, other areas may compensate for this, potentially resulting in injury to the low back, or lumbar spine. If you find these spring twisting activities are irritating your low back, consider addressing the strength and mobility of your thoracic spine. A strong and healthy thoracic spine can help take the load off of the already stressed lumbar spine.