R2 | R5 | R7 | ||
---|---|---|---|---|
Skin hydration | r | 0.110 | -0.028 | -0.209 |
p | 0.424 | 0.842 | 0.126 | |
TEWL | r | 0.160 | -0.062 | -0.040 |
p | 0.909 | 0.651 | 0.773 | |
Sebum | r | -0.420 | -0.112 | -0.030 |
p | 0.842 | 0.422 | 0.831 | |
MI | r | -0.101 | -0.114 | -0.003 |
p | 0.464 | 0.409 | 0.985 | |
EI | r | -0.107 | -0.196 | -0.155 |
p | 0.437 | 0.151 | 0.257 | |
L | r | 0.154 | 0.284 | 0.800 |
p | 0.295 | 0.500 | 0.589 | |
A | r | -0.083 | -0.025 | -0.008 |
p | 0.573 | 0.864 | 0.958 | |
B | r | -0.019 | 0.010 | -0.092 |
p | 0.896 | 0.948 | 0.534 | |
ITA | r | 0.117 | 0.191 | 0.049 |
p | 0.428 | 0.193 | 0.739 | |
Skin radiance | r | 0.481** | 0.931** | 0.578** |
p | 0.000 | 0.000 | 0.000 | |
pH | r | -0.373** | -0.500** | -0.501** |
p | 0.010 | 0.000 | 0.000 | |
pO2 | r | -0.215 | -0.182 | 0.578** |
p | 0.222 | 0.302 | 0.000 | |
pCO2 | r | -0.010 | -0.010 | 0.097 |
p | 0.956 | 0.957 | 0.586 | |
Skin temperature | r | 0.150 | 0.623** | 0.001 |
p | 0.414 | 0.000 | 0.994 | |
Blood perfusion | r | -0.019 | -0.079 | 0.320 |
p | 0.911 | 0.638 | 0.860 |
R2 is the ratio of Ua to Uf; R5 is the ratio of Ur to Ue; R7 is the ratio of Ur to Uf; Ua is the amount of recoil in the skin without negative pressure; Uf is the maximum stretch when you have a negative pressure; Ur is the elastic part of the skin recovery process during the first cycle of skin testing; Ue is the elastic part of the negative pressure process. The greater R2, R5 and R7 are the better elasticity of the skin.
TEWL, transepidermal water loss; MI, melanin index; EI, erythema index; pO2, transcutaneous oxygen; pCO2, transcutaneous carbon dioxide tension.
Ra | Rz | Rp | ||
---|---|---|---|---|
Skin hydration | r | 0.247 | 0.261 | 0.134 |
p | 0.235 | 0.208 | 0.522 | |
TEWL | r | -0.143 | 0.051 | -0.275 |
p | 0.495 | 0.807 | 0.184 | |
Sebum | r | -0.255 | -0.206 | -0.274 |
p | 0.230 | 0.335 | 0.194 | |
MI | r | 0.325 | 0.198 | 0.182 |
p | 0.121 | 0.354 | 0.394 | |
EI | r | 0.457* | 0.253 | 0.439* |
p | 0.025 | 0.234 | 0.032 | |
L | r | -0.303 | -0.231 | -0.082 |
p | 0.238 | 0.372 | 0.753 | |
A | r | 0.421 | 0.515* | 0.226 |
p | 0.092 | 0.035 | 0.383 | |
B | r | 0.073 | 0.430 | -0.239 |
p | 0.780 | 0.085 | 0.356 | |
ITA | r | -0.313 | -0.390 | 0.011 |
p | 0.222 | 0.122 | 0.966 | |
Skin radiance | r | 0.088 | 0.930 | 0.146 |
p | 0.684 | 0.666 | 0.496 | |
pH | r | -0.355 | -0.041 | -0.477 |
p | 0.178 | 0.880 | 0.062 | |
pO2 | r | 0.087 | 0.023 | 0.108 |
p | 0.707 | 0.920 | 0.642 | |
pCO2 | r | -0.203 | -0.540 | -0.219 |
p | 0.377 | 0.818 | 0.339 | |
Skin temperature | r | 0.239 | 0.490 | 0.170 |
p | 0.309 | 0.838 | 0.475 | |
Blood perfusion | r | 0.269 | 0.341 | 0.181 |
p | 0.204 | 0.103 | 0.396 |