Table 2.
Correlation between body composition, hydration, physical performance and bioelectrical variables in men without/with sarcopenia
| BIA | Classic BIVA | Specific BIVA | PA | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| R | Xc | Z | R/H | Xc/H | Z/H | Rsp | Xcsp | Zsp | ||
| Men without sarcopenia | ||||||||||
| FM (kg) | − 0.459* | 0.074 | − 0.431* | − 0.490* | 0.055 | − 0.463* | 0.745** | 0.490* | 0.747** | 0.255 |
| FM% | − 0.298 | 0.094 | − 0.287 | − 0.208 | 0.133 | − 0.199 | 0.576** | 0.372 | 0.576** | 0.184 |
| BMC (kg) | − 0.473* | − 0.202 | − 0.460* | − 0.640** | − 0.279 | − 0.628** | 0.290 | 0.138 | 0.290 | 0.049 |
| BMC% | − 0.032 | − 0.317 | − 0.055 | − 0.056 | − 0.319 | − 0.080 | − 0.447* | − 0.389 | − 0.450* | − 0.259 |
| ALST (kg) | − 0.321 | 0.041 | − 0.310 | − 0.554** | − 0.072 | − 0.543** | 0.384 | 0.332 | 0.390 | 0.230 |
| ALST% | 0.306 | 0.031 | 0.273 | 0.198 | − 0.017 | 0.167 | − 0.474* | − 0.217 | − 0.471* | − 0.055 |
| SMI (kg/m2) | − 0.565** | 0.105 | − 0.564** | − 0.680** | 0.048 | − 0.681** | 0.317 | 0.469* | 0.327 | 0.409* |
| TBW (l) | − 0.693** | − 0.218 | − 0.647* | − 0.849** | − 0.357 | − 0.813** | 0.323 | 0.340 | 0.327 | 0.304 |
| TBW% | 0.072 | − 0.170 | 0.028 | 0.164 | − 0.109 | 0.122 | − 0.922** | − 0.579* | − 0.920** | − 0,190 |
| 6MWT (min) | − 0.060 | 0.430* | − 0.121 | − 0.209 | 0.351 | − 0.270 | 0.141 | 0.477* | 0.154 | 0.472* |
| Hand grip Strenght (kg) | − 0.012 | 0.283 | − 0.021 | − 0.191 | 0.190 | − 0.199 | − 0.131 | 0.217 | − 0.122 | 0.304 |
| Men with sarcopenia | ||||||||||
| FM (kg) | 0.410 | 0.273 | 0.407 | 0.027 | 0.068 | 0.027 | 0.924 | 0.796 | 0.923 | 0.199 |
| FM% | 0.548 | 0.417 | 0.545 | 0.186 | 0.224 | 0.186 | 0.960* | 0.864 | 0.959* | 0,347 |
| BMC (kg) | − 0.195 | − 0.226 | − 0.196 | − 0.406 | − 0.349 | − 0.405 | 0.318 | 0.240 | 0.317 | − 0.253 |
| BMC% | − 0.494 | − 0.367 | − 0.492 | − 0.232 | − 0.236 | − 0.232 | − 0.717 | − 0.620 | − 0.716 | − 0.308 |
| ALST (kg) | − 0.229 | − 0.362 | − 0.232 | − 0.588 | − 0.549 | − 0.588 | 0.522 | 0.300 | 0.519 | − 0.429 |
| ALST% | − 0.675 | − 0.559 | − 0.673 | − 0.338 | − 0.377 | − 0.339 | − 0.990* | − 0.935 | − 0.990* | − 0.495 |
| SMI (kg/m2) | 0.128 | 0.018 | 0.125 | − 0.240 | − 0.183 | − 0.240 | 0.762 | 0.627 | 0.761 | − 0.046 |
| TBW (l) | − 0.361 | − 0.528 | − 0.365 | − 0.674 | − 0.670 | − 0.675 | 0.629 | 0.293 | 0.626 | − 0.596 |
| TBW% | − 0.462 | − 0.290 | − 0.458 | − 0.109 | − 0.116 | − 0.109 | − 0.999* | − 0.912 | − 0.999* | − 0.209 |
| 6MWT (min) | − 0.364 | − 0.384 | − 0.365 | − 0.534 | − 0.484 | − 0.533 | 0.147 | 0.058 | 0.146 | − 0.404 |
| Hand grip Strenght (kg) | − 0.813 | − 0.893 | − 0.815 | − 0.960* | − 0.959* | − 0.960* | − 0.208 | − 0.447 | − 0.211 | − 0.924 |
crf: circumference; BMI: body mass index; R: resistance; Xc: reactance; Z: vector length; PA: phase angle; R/H: resistance standardized for height; Xc/H: reactance standardized for height; Z/H: vector length standardized for height; Rsp: resistance standardized for height and transverse areas; Xcsp: reactance standardized for height and transverse areas; Zsp: vector length standardized for height and transverse areas; ALST: Appendicular lean soft tissue; FM: fat mass; BMC: bone mineral content; TBW: total body water; SMI: Skeletal muscle mass index; %: relative values (ratio) to body weight; 6MWT: 6-min walk test; r R-Xc: correlation between R and Xc; r R/H-Xc/H: correlation between R/H and Xc/H; r Rsp-Xcsp: correlation between Rsp and Xcsp
*p < 0.05; **p < 0.001