Proper posture starts with a good understanding of the muscles that are involved in posture. Several different muscles are responsible for maintaining upright posture, and over time, poor posture can cause these muscles to lose strength.
Air Force. A major in the Air Force typically has duties as a senior staff officer at the squadron and wing level. In flying squadrons majors are generally flight commanders or assistant directors of operations. In the mission support and maintenance groups majors may occasionally be squadron commanders.
Main duties: Perform duties that of a ramp agent. In addition to communicate with pilots / flight crews, dispatch and airport operations on a daily basis. Responsible for the safe calculation of aircraft weight and balance, using fuel amounts, baggage counts, and passenger weights.