Table 2 Levels of the monitored indices before and after the 12-week supplementation with HMB preparation and placebo
Research period | PREHMB vs. PLA | HMB | Difference | PLACEBO | Difference | |
|---|---|---|---|---|---|---|
p valuea | p valueb | p valueb | ||||
BM (kg) | Pre | 0.925 | 86.5 ± 9.3 | 0.016 | 86.2 ± 9.0 | 0.063 |
Post | 84.6 ± 8.1 | 84.8 ± 8.5 | ||||
FFM (kg) | Pre | 0.921 | 72.7 ± 6.3 | 0.117 | 72.9 ± 6.1 | 0.001 |
Post | 71.7 ± 5.6 | 70.9 ± 5.7 | ||||
FM (kg) | Pre | 0.755 | 13.8 ± 4.4 | 0.073 | 13.3 ± 4.7 | 0.197 |
Post | 12.8 ± 4.0 | 14.1 ± 4.3 | ||||
\( \dot{\mathrm{V}}{\mathrm{O}}_2 \max \) (mL · min−1) | Pre | 0.681 | 5794 ± 676 | 0.240 | 5897 ± 735 | 0.067 |
Post | 5905 ± 709 | 5723 ± 745 | ||||
\( \dot{\mathrm{V}}{\mathrm{O}}_2 \max \) (mL · min−1 · kg−1) | Pre | 0.572 | 67.3 ± 6.9 | 0.033 | 68.8 ± 8.0 | 0.438 |
Post | 70.0 ± 6.9 | 67.8 ± 8.5 | ||||
Tref (min) | Pre | 0.947 | 17.6 ± 3.1 | 0.043 | 17.7 ± 3.1 | 0.233 |
Post | 19.0 ± 3.6 | 18.5 ± 3.7 | ||||
Wmax (W) | Pre | 0.777 | 372 ± 52 | 0.052 | 378 ± 52 | 0.625 |
Post | 397 ± 56 | 384 ± 60 | ||||
Wmax (W · kg−1) | Pre | 0.621 | 4.31 ± 0.50 | 0.039 | 4.39 ± 0.41 | 0.234 |
Post | 4.70 ± 0.55 | 4.55 ± 0.65 | ||||
HRmax (bpm) | Pre | 0.962 | 185 ± 13 | 0.258 | 185 ± 9 | 0.136 |
Post | 188 ± 9 | 188 ± 10 | ||||
TVT (min) | Pre | 0.440 | 12.5 ± 2.1 | 0.003 | 12.8 ± 1.9 | 0.619 |
Post | 13.7 ± 2.2 | 12.6 ± 2.6 | ||||
WVT (W) | Pre | 0.187 | 278 ± 41 | 0.012 | 294 ± 36 | 0.310 |
Post | 309 ± 42 | 284 ± 47 | ||||
WVT (W · kg−1) | Pre | 0.248 | 3.24 ± 0.51 | 0.001 | 3.42 ± 0.32 | 0.554 |
Post | 3.66 ± 0.36 | 3.36 ± 0.49 | ||||
HRVT (bpm) | Pre | 0.399 | 157 ± 9 | 0.001 | 160 ± 10 | 0.598 |
Post | 166 ± 11 | 161 ± 9 | ||||
CK (U · L−1) | Pre | 0.865 | 328 ± 160 | 0.004 | 348 ± 169 | 0.008 |
Post | 241 ± 103 | 265 ± 156 | ||||
LDH (U · L−1) | Pre | 0.573 | 318 ± 36 | 0.033 | 326 ± 45 | 0.002 |
Post | 302 ± 35 | 302 ± 39 | ||||
Testosterone (mg · dL−1) | Pre | 0.895 | 510 ± 202 | 0.352 | 510 ± 154 | 0.569 |
Post | 552 ± 160 | 487 ± 160 | ||||
Cortisol (mg · dL−1) | Pre | 0.585 | 19.9 ± 5.3 | 0.331 | 20.0 ± 5.9 | 0.516 |
Post | 20.6 ± 5.8 | 20.8 ± 4.1 | ||||
T/C ratio (T · C−1*10−2) | Pre | 0.51 | 3.39 ± 1.77 | 0.53 | 3.36 ± 0.99 | 0.30 |
Post | 3.41 ± 1.08 | 3.03 ± 1.11 | ||||
Peak power (W) | Pre | 0.615 | 1003 ± 125 | 0.027 | 1028 ± 147 | 0.853 |
Post | 1054 ± 116 | 1024 ± 122 | ||||
Peak power (W · kg−1) | Pre | 0.488 | 11.65 ± 1.01 | 0.020 | 11.92 ± 1.16 | 0.960 |
Post | 12.26 ± 0.83 | 11.91 ± 1.15 | ||||
Average power (W) | Pre | 0.924 | 725 ± 87 | 0.648 | 722 ± 87 | 0.660 |
Post | 720 ± 83 | 718 ± 82 | ||||
Average power (W · kg−1) | Pre | 0.854 | 8.36 ± 0.60 | 0.688 | 8.32 ± 0.55 | 0.736 |
Post | 8.30 ± 0.59 | 8.28 ± 0.65 | ||||
Minimal power (W) | Pre | 0.478 | 503 ± 75 | 0.095 | 486 ± 52 | 0.763 |
Post | 475 ± 54 | 491 ± 78 | ||||
Minimal power (W · kg−1) | Pre | 0.465 | 5.80 ± 0.78 | 0.119 | 5.63 ± 0.55 | 0.821 |
Post | 5.49 ± 0.53 | 5.67 ± 0.76 |