Table 1.
Group comparison of baseline characteristics, in terms of mean (SD).
| High-Responders | Low-Responders | p | |
|---|---|---|---|
| n | 25 | 24 | |
| Age (years) | 31.2 (7.9) | 28.7 (9.4) | 0.089 |
| Stature (cm) | 179.4 (5.4) | 181.4 (6.9) | 0.37 |
| Body mass (kg) | 79.3 (7.8) | 79.7 (8.9) | 0.79 |
| Body mass index | 24.6 (2.0) | 24.2 (2.2) | 0.28 |
| Muscle mass (kg) | 38.0 (3.9) | 40.3 (4.1) | 0.046 |
| Fat mass (kg) | 12.8 (3.6) | 9.6 (5.7) | <0.001 |
| Maximal isometric force of the lower body (N) | 3959 (532) | 4564 (1116) | 0.049 |
| Maximal isometric force of the upper body (N) | 1139 (235) | 1204 (223) | 0.28 |
| Sit-ups (repetitions in 1 min) | 42.8 (10.5) | 46.7 (8.5) | 0.20 |
| Push-ups (repetitions in 1 min) | 37.4 (11.7) | 43.5 (13.2) | 0.053 |
| Pull-ups (repetition maximum) | 8.6 (4.9) | 10.8 (5.3) | 0.10 |
| Standing long jump (cm) | 226.7 (16.4) | 241.5 (27.4) | 0.016 |
| Military simulation test (s) | 155.8 (23.1) | 143.2 (24.2) | 0.028 |
| Serum testosterone (nmol·L−1) | 16.1 (4.3) | 16.1 (5.7) | 0.71 |
| Serum sex-hormone binding globulin (nmol·L−1) | 31.4 (9.9) | 33.2 (14.1) | 0.82 |
| Serum insulin-like growth factor-1 (pmol·L−1) | 26.2 (8.8) | 29.5 (11.0) | 0.21 |
| Serum cortisol (nmol·L−1) | 420.6 (108.7) | 440.4 (78.7) | 0.63 |
| Interview-based endurance training (times/week) * | 2.34 (1.40) | 2.58 (1.58) | 0.66 |
| Interview-based strength training (times/week) * | 1.79 (1.41) | 2.90 (1.18) | 0.008 |
| * Interviewed before the operation. |