Final answer:
Lower extremity garments typically use graduated compression to promote blood circulation, prevent swelling, and aid in the return of blood to the heart. These are helpful for conservative treatment of non-severe varicose veins and during conditions like long-haul flights or prolonged standing.
Step-by-step explanation:
Lower extremity garments, particularly when dealing with conditions such as varicose veins, generally use graduated compression. Such compression garments are designed to apply a specific amount of pressure near the ankles, with the level of compression gradually decreasing up the leg. This helps promote blood circulation and reduces swelling by aiding in the return of blood to the heart.
Graduated compression stockings are often recommended for conservative treatment of non-severe varicose veins. They are also advised to prevent blood accumulation from long periods of standing or sitting, which can lead to leg swelling or even fainting as seen with soldiers standing still for extended durations. Furthermore, for preventative measures during long-haul flights, where the risk of deep vein thrombosis increases, wearing tight, supportive stockings is similarly beneficial.
By providing increased pressure, such stockings not only support the veins in sending blood back up to the heart but also prevent the symptoms associated with blood accumulation in the lower limbs.