Whole Body Cryotherapy is not simply a faster version of an ice bath. The body’s reaction to low temperatures while submerged in an ice bath (7°C/45°F) is radically different from its reaction to cryo temperatures (lower than -110°C/-166°F) in the cryochamber.
In an ice bath, the body attempts to warm blood in its core and send it to the peripheral tissues to prevent the skin surface from freezing (vasodilation). While in an ice bath, the body is struggling with painful, unrelenting, penetrating physical cold with the small benefit of temporary analgesic relief of pain. Conversely, in the cryochamber the body constricts peripheral tissues sending blood from the skin surface, muscle tissue, and surrounding joint space to the core (vasoconstriction). As the blood travels to the core it passes through the cardiovascular system where it is cleansed of toxins and supplied with oxygen, nutrients, and enzymes. After exiting the cryochamber the body immediately begins vasodilation, returning the enriched blood to peripheral tissues that have been cleansed of toxins.
In an ice bath the temperature can only reach 45°F while the temperature in a cryotherapy chamber can reach -270°F.
During an ice bath, tissue begins to freeze and muscles temporarily lose capacity. Muscle tissue then needs time to return to normal which requires the body to rest. In contrast, the cryochamber does not actually freeze muscle tissue. It only creates a powerful illusion the body freezes. Upon exit from the cryochamber, the blood flow back to the peripheral tissues warms the muscles almost immediately. Accordingly, you may use the cryochamber both before and after a workout which is impossible to realize with an ice bath.