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.
perform duties in the vicinity of CAP aircraft to include, but are not limited to, the following CAP duties: Unit commanders, aircrew members (CAP Pilots, Mission Scanners, Sensor Operators, etc), mission staff supervising or actively engaged in aircraft operations (Incident Commanders, Operations Section Chiefs, Air Operations Branch Directors, Flight Line Supervisors and Marshallers, Mission Safety Officers, etc). Only CAP personnel that have current Aircraft Ground Handling Training may be authorized to move or supervise moving aircraft when necessary.