"According to surveys by the Department of Labor's Bureau of Labor Statistics (BLS), there are more than 35,000 back and other injuries among nursing employees every year, severe enough that they have to miss work. Nursing assistants and orderlies each suffer roughly three times the rate of back and other musculoskeletal injuries as construction laborers. In terms of sheer number of these injuries, BLS data show that nursing assistants are injured more than any other occupation, followed by warehouse workers, truckers, stock clerks and registered nurses."
Sourse: NPR