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.
The Air Force is headed by the civilian Secretary of the Air Force, who reports to the Secretary of Defense, and is appointed by the President with Senate confirmation.s of 2012, the service operates more than 5,638 military aircraft, 450 ICBMs and 63 military satellites. It has a $140 billion budget with 309,339 active duty personnel, 185,522 civilian personnel, 71,400 Air Force Reserve personnel, and 106,700 Air National Guard personnel.