[Electromyographic changes in temporary tourniquet ischemia in man].

After inflating a tourniquet with 600 mm Hg around the thigh a total blockade of the n. peronaeus occurs. This blockade is due to ischemia and spreads from proximal to distal. It is an ischemic blockade as the delay of nerve conduction was measured distal of the tourniquet and therefore cannot be due to the pressure under the cuff.