Work posture is one of the ergonomic risks that need to considered by company. Work posture is the position of the worker's body when doing task. If workers in the wrong working posture, they are at risk of Muculoskeletal Disorders (MSDs). Likewise for workers at sea, namely ferry crew. PT Citra Adiartha Shipping ferry crews has a risky work posture because they work in a confined space and oft…