One-third to one-half of all compensatory injuries are repetitive-motion injuries associated with office-type work " says Hedge professor of design and environmental analysis in Cornell's College of Human Ecology. Back injuries also account for one-third of all workplace injuries. The loan officer's job is to help you process your application for a mortgage. To see if you're suitable a certain mortgage product, they will look into your personal credit account and start the approval process for your transaction.