Lower Back Injury
The lower back is subject to a great deal of strain in many sports. Sports that use repetitive impact (running), a twisting motion (golf), or weight loading at the end of a range-of-motion (weightlifting) commonly cause damage to the lower back.
The neck is most commonly injured in sports that involve contact (football, hockey, rugby, etc.), which place the cervical spine at risk of injury.
Upper Back Injury
The thoracic spine is less likely to be injured but can often involve rib fracture and muscle strains in sports that involve rotation of the torso: swimming, golf, tennis, and even skiing.