Originally Posted by LongVehicle
Refer to Drilla’s thread, he gained 0.6” with no discoloration. I do not think he could have gained 1.5 inches without discoloration, on the other hand.
Discoloration is a direct effect of blood vessel “leakage” on a micro level. The red blood cells start creeping out of the capillaries and get trapped outside of the blood vessels in the tissues. The red blood cells die, break down and leave their pigment, hemosiderin, which is the iron that helps transport oxygen.
This hemosiderin builds up in the tissues, permanently darkening it. This “creeping” out from the capillaries occurs when the blood pressure inside the capillaries EXCEEDS the capacity of the walls of the capillaries to prevent it. In other words, the pressure inside the capillaries stretches the walls enough that red blood cells start getting pushed out of them.
For each guy, this level is slightly different. That’s just genetics. However, high enough pressure, long enough can cause it in anyone.
How do you prevent it? One way is to keep the pressures low enough AND the time short enough to not allow it to happen.
The second method is to compress the surface of the skin, like with a wrap. This gives counter force to compress the capillaries, to work in opposition to the expansive force of the internal blood pressure. The trick is to compress the skin enough to protect the blood vessels, and not so much as to prevent expansion of the tunica. This isn’t difficult because the pressure needed to protect the capillaries is far less than the force needed to expand the tunica.
Drilla avoided discoloration because he used moderate clamping pressures which was below the leakage point for his capillaries. The problem comes in when your tunica needs more pressure and time than your capillaries can sustain. In the past you either accept the discoloration or you stop. Now, I believe with the wrap method you can do both.