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[Research and comparative characteristic of the factors determining elasticity of the human skin].

G A GA Timofeev, E E EE Faustova, V N VN Fedorova, A B AB Timofeev, and L S LS Kornopeleva

Biofizika 53(1):133-8 (2008) PMID 18488513

Changes in skin elasticity have been analyzed under different conditions (upon skin stretching, at different thickness of the skin, at different contents of collagen, intercellular and endocellular liquids, upon changes of venous pressure, and during contraction and relaxation of smooth muscles in skin vessels - vasomotions). Elasticity was defined by the acoustic method from the speed of diffusion of a superficial sheared acoustic wave in the skin, by the autoresonant method from the mechanical resonance frequency of skin, and from the vacuum pressure needed for skin site deformation of constant volume. It was shown that the major factors determining the elasticity of skin are it stretching, thickness, and the contents of collagen and liquids in it. The influence on elasticity of venous pressure and the contraction activity of smooth muscles in vessels is not essential. This suggests that the parameters of skin elasticity can be used as indicators of systemic and local lesions of the connective tissue.

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