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Table 1 Volume fractions of V blood , V melanin , V fat , V water , and V intrinsic in skin layers

From: Near infrared spectroscopy for body fat sensing in neonates: quantitative analysis by GAMOS simulations

Layers

V blood

V melanin

V fat

V water (normal)

Vwater (dehydrated)

Vintrinsic

Epidermis dermis 1 Caucasian

0.3

0.0010

0

0.6

0.1

1.0 − (V blood + V melanin + V water )

Epidermis dermis 2 African

0.3

0.030

0

0.6

0.1

1.0 − (V blood + V melanin + V water )

Subcutaneous fat

0.05

0

0.79

0.14

0.02

1.0 − (V blood + V water + V fat )

Muscle

0.20

0

0

0.70

–

1.0−(V blood + V water )