Lack of movement and constriction lived by long sitting in a car, plane, bus or train will slow the return flow of blood to the heart. As a result, blood clots can form in the legs, which in the worst case can prevent blood from flowing out. This is called thrombosis.
A thrombus forms in the deep veins of the legs and there is a risk that the clot will be swept away by the bloodstream and circulate to the pulmonary artery, where it remains. This is the most feared complication of thrombosis – pulmonary embolism.
Medical travel stockings create a precise pressure on the lower limb: this pressure decreases from the ankle to the knee. Therefore, medi travel accelerates the flow of blood towards the heart.