This is how exercise can help you!
The stick figure on left illustrates a normal subject erect and motionless with a venous cannulation in the left foot. Venous pressure rises to the level of the right atrium. The stick figure on the right illustrates the effect of the normal lower extremity venous pump and the unidirectional valves activated by walking or ankle flexion. The fluid column is reduced to between 50–60% of its resting value. Failure to reduce the height of the fluid column results in ambulat
