Table 1.
Baseline characteristics.
| Creatine (n = 13) | Placebo (n = 9) | p-Value | |
|---|---|---|---|
| Age (yrs) | 26.15 (4.66) | 26.44 (5.10) | 0.891 |
| Mass (kg) | 80.5 (18.07) | 79.88 (19.97) | 0.936 |
| Height (cm) | 174.50 (10.53) | 175.05 (12.09) | 0.911 |
| Muscle thickness (cm) | |||
| Elbow flexors | 2.97 (0.88) | 3.03 (0.93) | 0.87 |
| Elbow extensors | 2.76 (0.78) | 2.84 (0.65) | 0.805 |
| Knee extensors | 3.92 (0.93) | 3.82 (0.45) | 0.783 |
| Knee flexors | 3.36 (0.57) | 3.34 (0.53) | 0.959 |
| Ankle plantarflexors | 3.53 (0.41) | 3.12 (0.50) | 0.051 |
| Total muscle thickness | 16.55 (2.50) | 16.18 (2.28) | 0.726 |
| Muscle strength (kg) | |||
| Chest press | 120.89 (54.8) | 143.38 (65.10) | 0.391 |
| Leg press | 188.06 (88.68) | 188.06 (107.96) | 0.987 |
| Total strength | 308.96 (135.32) | 326.87 (169.64) | 0.792 |
| Muscle endurance (repetitions) | |||
| Chest press endurance | 22.76 (4.96) | 24.22 (3.96) | 0.474 |
| Leg press endurance | 17.53 (8.96) | 19.25 (9.63) | 0.684 |
| Total endurance | 40.30 (10.52) | 43.75 (12.04) | 0.499 |
| Muscle power | |||
| Vertical jump (Watts) | 4387.08 (1126.50) | 4561.87 (1367.64) | 0.746 |
| Medicine ball throw (cm) | 386.15 (103.58) | 386.76 (103.12) | 0.989 |
| Total power | 4539.12 (1161.86) | 4714.15 (1404.32) | 0.753 |
| Diet | |||
| Total calories (kcal/day) | 2348.31 (736.06) | 2148.30 (625.60) | 0.558 |
| Carbohydrate (g/day) | 254.23 (94.85) | 239.26 (80.61) | 0.57 |
| Fat (g/day) | 93.46 (46.86) | 72.45 (29.42) | 0.293 |
| Protein (g/day) | 112.52 (54.28) | 134.78 (60.59) | 0.437 |
| Relative protein (g/kg) | 1.34 (0.68) | 1.60 (0.50) | 0.404 |
Values are means (standard deviation).