Comparison in the interface pressure under self-adherent and non-self-adherent bandages during standing and exercise

Self-adherent bandages are useful to prevent the bandage from becoming loose. However, the material binds tightly to itself to form a tight band, which may result in changes in interface pressure under the bandages during changes in posture and exercise, because the pressure depends on the elasticity of the bandages. The aim of this study was to compare the interface pressures under self-adherent and non-self adherent bandages while standing and during exercise.

In 20 normal volunteers the pressure was determined at the posteromedial area of the midcalf during lying, standing, tip-toe exercise and walking, using an Air Pack Type Analyzer. We examined two kinds of bandages with a maximal tension of 70%, self-adherent and non-self-adherent bandages.

There was no significant increase in pressure observed during standing in comparison with pressure in the supine position immediately after application. A significant increase in pressure under both bandages was observed during tip-toe exercise and walking. However, there was no significant difference in pressure during standing or exercise between self-adherent and non-self-adherent bandages. Furthermore, there was no significant pressure difference between muscle contraction and relaxation between the two bandages.

Self-adherent bandages can maintain their own elasticity, even when the material binds tightly to itself.