In the Interdisciplinary Science and Education Complex on Northeastern’s Boston campus, models of human bones line shelves alongside machines that measure how much force it takes to break the real things. It’s the lab of Sandra Shefelbine, a professor of bioengineering and mechanical and industrial engineering, who studies bone biomechanics. That includes how bone develops, adapts, and changes in various conditions, such as with “hip hinge” sports, like hockey, that require players to bend over in a forward position.