Fig. 2.

Registration of compression pressure of different compression materials measured at the B1-point (about 12 cm above the inner ankle). a: under the “liner” of a medi ulcer kit® (double stocking). b: after putting the second stocking over the liner. c: under an inelastic bandage (Rosidal sys®). Dorsiflexions (ankle movement) in the lying position induce intermittent pressure waves corresponding to a massaging effect. The pressure rises by standing up: SSI= static stiffness index = pressure difference standing - lying. Note that the inelastic bandage and the double stocking exert both the same resting pressure of 40 mmHg. However, the pressure amplitudes during dorsiflexions and SSI are much higher under the inelastic bandage than under the double stocking.