Table 2.
Anthropometry, body composition, flexibility, and aerobic and anaerobic power of soccer players by nutritional knowledge.
| Total (n = 185) | Low NK (n = 57) | Moderate NK (n = 78) | High NK (n = 50) | Comparison | |
|---|---|---|---|---|---|
| Age (yr) | 21.3 ± 4.9 | 19.7 ± 4.1H | 20.8 ± 4.2H | 24.1 ± 5.8L,M | F 2,182 = 13.1, p < 0.001, η 2 = 0.13 |
| Weight (kg) | 72.3 ± 8.4 | 70.1 ± 8.6H | 72.3 ± 8.5 | 74.6 ± 7.3L | F 2,182 = 3.9, p = 0.021, η 2 = 0.04 |
| Height (cm) | 177.5 ± 6.4 | 176.4 ± 6.3 | 177.1 ± 6.5 | 179.3 ± 6.3 | F 2,182 = 2.8, p = 0.062, η 2 = 0.03 |
| BMI (kg·m−2) | 22.9 ± 2.0 | 22.5 ± 2.2 | 23.0 ± 2.1 | 23.2 ± 1.6 | F 2,182 = 1.7, p = 0.182, η 2 = 0.02 |
| BF (%) | 14.5 ± 3.8 | 14.6 ± 3.5 | 14.5 ± 4.1 | 14.4 ± 3.8 | F 2,182 < 0.1, p = 0.963, η 2 < 0.01 |
| FM (kg) | 10.7 ± 3.7 | 10.4 ± 3.4 | 10.7 ± 3.9 | 10.9 ± 3.6 | F 2,182 = 0.2, p = 0.780, η 2 < 0.01 |
| FFM (kg) | 61.6 ± 6.2 | 59.7 ± 6.3H | 61.7 ± 6.4 | 63.7 ± 5.2L | F 2,182 = 5.7, p = 0.004, η 2 = 0.06 |
| SAR (cm) | 24.5 ± 7.0 | 22.6 ± 7.0 | 25.2 ± 6.8 | 25.6 ± 7.0 | F 2,181 = 3.1, p = 0.046, η 2 = 0.03 |
| PWC170 (W) | 205 ± 31 | 201 ± 42 | 207 ± 47 | 205 ± 31 | F 2,177 = 0.3, p = 0.745, η 2 < 0.01 |
| PWC170 (W·kg−1) | 2.83 ± 0.48 | 2.86 ± 0.49 | 2.85 ± 0.53 | 2.75 ± 0.39 | F 2,177 = 0.8, p = 0.439, η 2 = 0.01 |
| P peak (W) | 816 ± 122 | 782 ± 112H | 825 ± 129 | 840 ± 115L | F 2,178 = 3.4, p = 0.034, η 2 = 0.04 |
| P peak (W·kg−1) | 11.3 ± 1.0 | 11.1 ± 0.9 | 11.4 ± 1.0 | 11.3 ± 1.0 | F 2,178 = 1.2, p = 0.313, η 2 = 0.01 |
| P mean (W) | 618 ± 86 | 597 ± 88 | 620 ± 84 | 637 ± 84 | F 2,172 = 2.8, p = 0.063, η 2 = 0.03 |
| P mean (W·kg−1) | 8.54 ± 0.82 | 8.51 ± 0.83 | 8.57 ± 0.86 | 8.52 ± 0.76 | F 2,172 = 0.1, p = 0.895, η 2 < 0.01 |
| FI (%) | 45.0 ± 6.9 | 44.2 ± 5.7 | 45.9 ± 7.7 | 44.7 ± 6.8 | F 2,172 = 1.0, p = 0.381, η 2 = 0.01 |
NK = nutritional knowledge, BMI = body mass index, BF = body fat, FM = fat mass, FFM = fat free mass, SAR = sit-and-reach test, PWC170 = physical working capacity in heart rate 170 bpm, P peak = peak power, P mean = mean power, and FI = fatigue index.
Letters H, L, and M when presenting as superscripts denote difference from group with high, low, and moderate nutritional knowledge, respectively.