Table 3.
Cross-sectional area of the thigh muscles (mm2) (mean ± SD)
| Exercise intervention group | Control group | |||
|---|---|---|---|---|
| Pre-training | Post-training | Pre-training | Post-training | |
| CSA QF HD tissue (mm2) | 5,350 ± 1,319 | 5,610 ± 1,249*† | 6,194 ± 1,095 | 5,997 ± 1,006 |
| CSA QF LD tissue (mm2) | 1,387 ± 723 | 1,394 ± 788 | 685 ± 146 | 723 ± 128 |
| CSA QF TOT (mm2) | 6,738 ± 1,609 | 7,004 ± 1,700*† | 6,879 ± 1,107 | 6,720 ± 1,071 |
| CSA thigh TOT (mm2) | 13,856 ± 3,292 | 14,321 ± 3,385 | 13,981 ± 2,464 | 13,399 ± 2,462 |
| CSA KF HD tissue (mm2) | 1,383 ± 540 | 1,486 ± 474† | 1,398 ± 529 | 1,244 ± 470 |
| CSA KF LD tissue (mm2) | 872 ± 318 | 949 ± 375 | 1,087 ± 240 | 1,131 ± 168 |
| CSA KF TOT (mm2) | 2,256 ± 725 | 2,436 ± 685**† | 2,485 ± 679 | 2,375 ± 561 |
| CSA hip ADD TOT (mm2) | 13,856 ± 3,292 | 14,321 ± 3,385 | 13,981 ± 2,464 | 13,399 ± 2,462 |
| CSA thigh TOT (mm2) | 3,910 ± 1,793 | 3,914 ± 1,808 | 3,258 ± 1,029 | 3,040 ± 1,273 |
CSA muscle cross-sectional area, QF quadriceps femoris, HD high-density (low fat infiltration), LD low-density (high fat infiltration), TOT total, KF knee flexor, ADD adductor
*P < 0.05, **P < 0.01, significant difference from pre-training values; †P < 0.05, significant time vs. group interaction