Friction Dynamics of Human Skin Treated with Oil under Nonlinear Motion

• DOI: 10.5650/jos.ess23166
• Publication Date: 2024-02-01T22:14:34Z
• Authors: Yuka Sakata; Hiroyuki Mayama; Yoshimune Nonomura
• Keywords: Silicone oil; Human skin; Transepidermal water loss; Contact area; Barrier function; Normal force

Moisturization causes physiological changes that improve the barrier function of human skin and mechanical changes, including friction characteristics. This study evaluated petrolatum- or silicone oil-treated to determine effect moisturizing on dynamics. The force was measured using a contact probe with sinusoidal motion. used rub upper arm 20 subjects. water content stratum corneum, softness, were corneometer, cutometer, tewameter, respectively. Both oils reduce frictional skin. Simultaneously, oil also reduced delay time δ, which is standardized difference between response movement. Three typical patterns discovered, significantly changed by treatment oil. These attributed lubrication elimination adhesion at true point probe.