What are the elements of the Antigravity Straining Maneuver (AGSM)?

The Antigravity Straining Maneuver (AGSM) is a technique used to counteract the effects of increased gravitational forces on the body, particularly in situations like high-performance maneuvering in aircraft. The correct elements of the AGSM involve skeletal muscle tensing and cyclic breathing.

When a pilot engages in the AGSM, they tense their skeletal muscles, which helps to maintain blood flow to the brain by preventing blood from pooling in the lower extremities. This muscle tension is crucial during episodes of high G-forces, as it counteracts the gravitational forces acting on the body.

Cyclic breathing, which is the controlled inhalation and exhalation in a rhythmic pattern, complements muscle tension by helping to maintain adequate oxygen supply and regulate intra-abdominal pressure. This combination effectively reduces the risk of G-induced Loss Of Consciousness (GLOC) by stabilizing circulation and ensuring that blood continues to reach the brain.

Understanding these elements is vital for pilots engaged in high-G flight, as proper execution of the AGSM can significantly enhance their ability to withstand the stresses of flight without losing consciousness.