What is an essential component of cyclic breathing in AGSM?

Cyclic breathing, specifically in the context of Anti-G Straining Maneuver (AGSM), relies on the fundamental rhythm of regular inhalation and exhalation. This steady breathing pattern is crucial because it helps maintain adequate oxygen flow to the body, particularly during high G-force maneuvers. By establishing a consistent cycle of inhaling and exhaling, pilots can effectively manage their physiological response to G-forces, thereby preventing loss of consciousness or G-induced Loss Of Consciousness (GLOC).

While deep and slow breathing can be beneficial in various contexts for relaxation or stress reduction, AGSM focuses on maintaining a balance between oxygen deprivation and carbon dioxide buildup during high G conditions. Short bursts of breath or holding the breath would not support the necessary physiological demands when experiencing G-forces, potentially leading to failure in maintaining consciousness during high-stress situations. Regular inhalation and exhalation facilitate better blood circulation and venous return, allowing pilots to better withstand the physical challenges posed by high speeds and gravitational forces.