Jim spends most of his workday sitting on a stool at the technical workbench. The image on this page illustrates how he routinely sits. Lately, he has been experiencing lower back and leg discomfort that continues to bother him when he leaves work. He has been having trouble sleeping because of the pain in his legs. Eventually, the pain progresses to the point where he cannot work an entire day. What may have caused the problem and what could have been done to prevent the MSD from developing? Consider what could be the problem based on your observation of Jim's normal sitting position. Then click on the blue text below to see the ergonomic evaluation and possible solutions.