Summary
Highlights
The video begins by introducing cryotherapy, explaining that it works with cold by decreasing the amount of heat. Heat always moves from an area of excess to an area of deficit. In cryotherapy, the human body is the area of heat excess, and the cold element used is the area of deficit.
Cryotherapy is defined as the set of knowledge and therapeutic procedures involving the action of cold on the organism.
The video details normal body temperature ranges: 34-35 degrees Celsius in covered areas, dropping to 31 degrees Celsius in uncovered areas. Armpit temperature ranges from 36-37 degrees, and oral temperature is around 37 degrees Celsius.
Cryotherapy subtracts heat from the body. The skin's thermoreceptors for cold are more developed than those for heat, leading to immediate sensation of cold. However, the body can tolerate cold for longer periods than intense heat.
Several factors affect the intensity of cold. These include the thermal difference between the agent and the skin (greater difference equals greater heat subtraction), the rapidity of application (sudden application feels more intense), the extent of the treated surface (larger surface areas feel colder), and individual sensitivity to cold. The video also notes that cold stimulation is not proportional to the duration of application, as the body has reactive processes to defend against prolonged cold.