Table 2

Distribution of skin lines and fibers densities according to direction in the horizontal plane (azimuthal) and the vertical plane (polar) for the forearm and the thigh at rest for all volunteers included of the young and the middle-aged groups, and during folding test for 5 young volunteers and 3 middle-aged volunteers. (* for 0.01 < p-value < 0.05, ** for 0.001 < p-value < 0.01, *** for p-value < 0.0001).


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