Table 1.
Participant characteristics according to groups at baseline
| Variable | Resistance training group (RT) (n = 9) | Non-exercise control group (CON) (n = 9) |
|---|---|---|
| Age (y) | 24.2 ± 3.1 | 26.7 ± 6.2 |
| Height (cm) | 1.74 ± 0.03 | 1.75 ± 0.06 |
| Weight (kg) | 68.5 ± 9.7 | 68.7 ± 7.6 |
| BMI (kg/m2) | 22.5 ± 2.9 | 22.3 ± 1.9 |
| FFM (kg) | 54.2 (49.2 –56.4 ) | 57.5 (51.1 –58.8 ) |
| Muscle mass (kg) | 51.4 (46.6 –53.3 ) | 54.9 (48.4 –55.8 ) |
| Body fat percentage (%) | 21.9 ± 6.9 | 18.8 ± 6.0 |
| Arms fat percentage (%) | 18.7 ± 7.1 | 14.4 ± 5.1 |
| Legs fat percentage (%) | 20.5 ± 5.6 | 18.1 ± 5.2 |
| Trunk fat percentage (%) | 25.1 ± 8.3 | 21.6 ± 7.3 |
| BMD (g/cm2) | 1.16 ± 0.07 | 1.18 ± 0.07 |
| 25(OH) D (nmol/L) | 26.9 ± 4.7 | 26.2 ± 4.1 |
| iPTH (pg/mL) | 54.9 ± 19.8 | 44.6 ± 23.8 |
| MVPA (min/day) | 69.8 ± 32.2 | 65.8 ± 16.3 |
| Sun exposure (min/day) | 40.0 ± 27.9 | 50.0 ± 30.7 |
Values are presented as mean ± standard deviation, median (interquartile range), or percentage
Student t test (for normally distributed variables) or the Mann-Witney U test (for nonnormally distributed variables) was used to evaluate the differences. Significant difference, P < 0.05
BMI body mass index, FFM fat free mass, 25(OH) D 25-hydroxyvitamin D, iPTH intact parathyroid hormone, MVPA moderate-vigorous physical activity