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 Reserve is an integral part of our country's dominant presence in air, space and cyberspace, contributing daily to the Total Force mission and is actively involved in global operations. Civilians may join the Reserve as a Traditional Reservist, attend basic training and technical school, and serve monthly at their assigned home unit.