In 1877, Massachusetts passed the Nation's first factory inspection law. It required guarding of belts, shafts, and gears, protection on elevators, and adequate fire exits. Its passage prompted a flurry of State factory acts.
These muscles can cause pain in the right upper back after injuries, such as a muscle strain or bruise from a car accident or fall. Overuse from work or recreational activities, such as painting or playing racket sports, might also be to blame -- especially for people who are right handed.
Lower back pain on the right side can be caused by numerous factors. Lower back pain on the right side can be caused by numerous factors. According to the National Institute of Neurological Disorders and Stroke, or NINDS--a division of the National Institutes of Health--a person's back is comprised of an intricate arrangement of bones, muscles and connective tissue that run from the neck to the pelvis.