hyperbaric oxygen therapy

noun

: therapy used in hyperbaric medicine that involves the administration in a sealed chamber of pure oxygen at a greater than normal atmospheric pressure

Hyperbaric oxygen therapy (HBOT) is a method of boosting oxygen intake by exposing the athlete to oxygen at a higher than normal atmospheric pressure—picture a space-pod-looking capsule where you sit and breathe a heavy-duty dose of oxygen.

—Dana Sullivan, Women's Sports & Fitness