Effect of Localized Mechanical Indentation on Skin Water Content Evaluated Using OCT

Table 1

Ex vivo porcine skin results for air immersion and mechanical compression. Errors are ±1 SD.

	Air immersion		Mechanical compression
	Before	After	Before	After
Thickness	1700±140 μm	680±220 μm	1300±100 μm	540±150𝜇m
Strain	—	−0.598±0.096	—	−0.585±0.083
Refractive index	1.36±0.02	1.49±0.03	1.39±0.02	1.5±0.05
Water volume fraction	0.68±0.09	0.35±0.12	0.66±0.02	0.20±0.05
Water weight fraction	0.57±0.01	0.37±0.01	—	—