How do compression hose aid in preventing blood clots?

Compression hose are designed to apply consistent pressure to the legs, which helps to promote better blood circulation. This increased pressure encourages blood to flow back toward the heart, reducing the risk of stagnation in the veins. By enhancing venous return, compression garments can help prevent the formation of blood clots, especially in individuals who are at risk due to factors like prolonged immobility or certain medical conditions.

The action of squeezing the legs aids in reducing blood pooling and facilitates more effective blood movement throughout the venous system. This mechanism is particularly crucial in preventing deep vein thrombosis (DVT), where clots can form in the deep veins of the legs.

In contrast, other options do not contribute positively to preventing blood clots. For instance, restricting airflow to the legs would have no beneficial effect on circulation and could be detrimental. Increasing blood pressure alone does not specifically address blood flow dynamics in the veins, and while warming the blood might have some physiological effects, it is not a primary method for preventing blood clots. Thus, the main function of compression hose is effectively encapsulated in the action of squeezing the legs to enhance blood flow.