When they cool, the tendons do not return to earlier temperatures as quickly as the muscles because they do not have the same blood flow or metabolism. Therefore, an inflammatory reaction can occur if the legs are very cold for a long time. The gaiters were developed to cool the tissue via the cool packs and slow blood flow to reduce inflammation. In combination with a massage, however, the blood flow is not completely restricted. In this way, the oxygen content of the tired and damaged tissue can be maintained and better recovery can be made possible.