Table 2.
Pairwise comparisons between the established subgroups (central defenders vs. central midfielder vs. striker vs. wide defender vs. wide midfielder) on the basis of age, anthropometric and maturational characteristics, and results obtained in the fitness tests performed.
| Variables | CD (Mean ± SD) |
CM (Mean ± SD) |
WD (Mean ± SD) |
WM (Mean ± SD) |
ST (Mean ± SD) |
p (ES) |
Pairwise Comparisons (p) | ES |
|---|---|---|---|---|---|---|---|---|
| Age (years) | 13.33 ± 0.17 | 13.13 ± 0.34 | 13.28 ± 0.15 | 13.26 ± 0.13 | 13.30 ± 0.20 | 0.885 (0.96) |
CD vs. CM: 0.514 CD vs. WD: 0.742 CD vs. WM: 0.650 CD vs. ST: 0.971 CM vs. WD: 0.657 CM vs. WM: 0.650 CM vs. ST: 0.542 WD vs. WM: >0.999 WD vs. ST: >0.999 WM vs. ST: 0.821 |
CD vs. CM: 0.74 medium CD vs. WD: 0.31 small CD vs. WM: 0.17 trivial CD vs. ST: 0.16 trivial CM vs. WD: 0.57 small CM vs. WM: 0.53 small CM vs. ST: 0.58 small WD vs. WM: 0.14 trivial WD vs. ST: 0.11 trivial WM vs. ST: 0.25 small |
| Weight (kg) | 55.75 ± 5.56 | 45.00 ± 7.70 | 51.25 ± 5.18 | 45.40 ± 3.84 | 59.67 ± 5.50 |
0.032 (0.43) |
CD vs. CM: 0.142 CD vs. WD: 0.342 CD vs. WM: 0.039 CD vs. ST: 0.457 CM vs. WD: 0.342 CM vs. WM: 0.851 CM vs. ST: 0.057 WD vs. WM: 0.079 WD vs. ST: 0.228 WM vs. ST: 0.035 |
CD vs. CM: 1.60 large CD vs. WD: 0.83 medium CD vs. WM: 2.22 very large CD vs. ST: 0.70 medium CM vs. WD: 0.95 medium CM vs. WM: 0.06 trivial CM vs. ST: 2.12 very large WD vs. WM: 1.30 large WD vs. S: 1.58 large WM vs. ST: 3.19 very large |
| Height (cm) | 175.5 ± 3.69 | 156.0 ± 5.59 | 168.5 ± 12.12 | 156.0 ± 6.04 | 178.7 ± 7.09 |
0.016 (2.16) |
CD vs. CM: 0.028 CD vs. WD: 0.400 CD vs. WM: 0.015 CD vs. ST: 0.457 CM vs. WD: 0.228 CM vs. WM: >0.999 CM vs. ST: 0.057 WD vs. WM: 0.190 WD vs. ST: 0.228 WM vs. ST: 0.035 |
CD vs. CM: 4.11 very large CD vs. WD: 0.78 medium CD vs. WM: 3.77 very large CD vs. ST: 0.60 medium CM vs. WD: 1.32 large CM vs. WM: 0.00 trivial CM vs. ST: 3.63 very large WD vs. WM: 1.36 large WD vs. ST: 0.98 moderate WM vs. ST: 3.54 very large |
| Seated height (cm) | 91.25 ± 5.73 | 86.50 ± 6.45 | 91.00 ± 6.48 | 81.00 ± 2.23 | 92.33 ± 2.51 |
0.039 (1.64) |
CD vs. CM: 0.342 CD vs. WD: 0.971 CD vs. WM: 0.023 CD vs. ST: 0.942 CM vs. WD: 0.400 CM vs. WM: 0.031 CM vs. ST: 0.257 WD vs. WM: 0.023 WD vs. ST: >0.999 WM vs. ST: 0.017 |
CD vs. CM: 0.77 medium CD vs. WD: 0.04 trivial CD vs. WM: 2.48 very large CD vs. ST: 0.22 small CM vs. WD: 0.69 medium CM vs. WM: 1.20 medium CM vs. ST: 1.11 medium WD vs. WM: 2.19 very large WD vs. ST: 0.25 small WM vs. ST: 4.85 very large |
| PHV (age) | 13.45 ± 0.73 | 13.40 ± 0.65 | 13.10 ± 0.36 | 13.04 ± 0.39 | 13.42 ± 0.55 | 0.763 (0.81) |
CD vs. CM: >0.999 CD vs. WD: 0.885 CD vs. WM: 0.603 CD vs. ST: 0.857 CM vs. WD: 0.685 CM vs. WM: 0.412 CM vs. ST: 0.857 WD vs. WM: 0.904 WD vs. ST: 0.628 WM vs. ST: 0.250 |
CD vs. CM: 0.07 trivial CD vs. WD: 0.60 medium CD vs. WM: 0.73 medium CD vs. ST: 0.04 trivial CM vs. WD: 0.57 small CM vs. WM: 0.69 medium CM vs. ST: 0.03 trivial WD vs. WM: 0.15 trivial WD vs. ST: 0.71 medium WM vs. ST: 0.84 medium |
| Maturity (years) | −0.13 ± 0.57 | −0.26 ± 0.82 | 0.18 ± 0.31 | 0.20 ± 0.38 | −0.13 ± 0.76 | 0.898 (0.98) |
CD vs. CM: >0.999 CD vs. WD: 0.742 CD vs. WM: 0.730 CD vs. ST: >0.999 CM vs. WD: 0.685 CM vs. WM: 0.412 CM vs. ST: 0.857 WD vs. WM: 0.730 WD vs. ST: 0.628 WM vs. ST: 0.785 |
CD vs. CM: 0.18 trivial CD vs. WD: 0.67 medium CD vs. WM: 0.70 medium CD vs. ST: 0.00 trivial CM vs. WD: 0.71 medium CM vs. WM: 0.75 medium CM vs. ST: 0.16 trivial WD vs. WM: 0.05 trivial WD vs. ST: 0.57 small WM vs. ST: 0.61 medium |
| Weight/height ratio | 31.93 ± 1.40 | 27.70 ± 2.55 | 23.60 ± 16.06 | 31.16 ± 3.74 | 30.73 ± 0.90 | 0.315 (0.45) |
CD vs. CM: 0.028 CD vs. WD: 0.485 CD vs. WM: >0.999 CD vs. ST: 0.400 CM vs. WD: 0.685 CM vs. WM: 0.285 CM vs. ST: 0.114 WD vs. WM: 0.904 WD vs. ST: 0.685 WM vs. ST: 0.785 |
CD vs. CM: 2.05 very large CD vs. WD: 0.73 medium CD vs. WM: 0.25 small CD vs. ST: 0.98 medium CM vs. WD: 0.35 small CM vs. WM: 1.05 medium CM vs. ST: 1.47 large WD vs. WM: 0.69 moderate WD vs. ST: 0.57 small WM vs. ST: 0.13 trivial |
| Height/weight ratio | 44.65 ± 0.61 | 45.28 ± 1.57 | 34.05 ± 22.81 | 44.98 ± 2.96 | 43.20 ± 0.88 | 0.449 (0.29) |
CD vs. CM: 0.285 CD vs. WD: 0.485 CD vs. WM: 0.674 CD vs. ST: 0.171 CM vs. WD: 0.685 CM vs. WM: >0.999 CM vs. ST: 0.114 WD vs. WM: 0.611 WD vs. ST: 0.714 WM vs. ST: 0.392 |
CD vs. CM: 0.52 small CD vs. WD: 0.65 medium CD vs. WM: 0.14 trivial CD vs. ST: 1.98 large CM vs. WD: 0.69 medium CM vs. WM: 0.12 trivial CM vs. ST: 1.55 large WD vs. WM: 0.72 medium WD vs. ST: 0.51 small WM vs. ST: 0.72 medium |
| Triceps (mm) | 9.87 ± 2.39 | 11.38 ± 3.35 | 9.00 ± 2.16 | 13.30 ± 4.29 | 10.83 ± 3.25 | 0.688 (0.72) |
CD vs. CM: >0.999 CD vs. WD: >0.999 CD vs. WM: 0.166 CD vs. ST: 0.571 CM vs. WD: 0.628 CM vs. WM: 0.976 CM vs. ST: 0.628 WD vs. WM: 0.254 WD vs. ST: 0.771 WM vs. ST: 0.392 |
CD vs. CM: 0.51 small CD vs. WD: 0.38 small CD vs. WM: 0.95 medium CD vs. ST: 0.34 small CM vs. WD: 0.84 medium CM vs. WM: 0.49 small CM vs. ST: 0.16 trivial WD vs. WM: 1.21 large WD vs. ST: 0.69 medium WM vs. ST: 0.62 medium |
| Subscapular (mm) | 9.37 ± 1.25 | 10.25 ± 3.12 | 10.50 ± 3.10 | 14.40 ± 3.73 | 11.67 ± 0.57 | 0.178 (0.84) |
CD vs. CM: 0.657 CD vs. WD: 0.371 CD vs. WM: 0.039 CD vs. ST: 0.085 CM vs. WD: 0.914 CM vs. WM: 0.127 CM vs. ST: 0.428 WD vs. WM: 0.317 WD vs. ST: 0.971 WM vs. ST: 0.625 |
CD vs. CM: 0.37 small CD vs. WD: 0.47 small CD vs. WM: 1.71 large CD vs. ST: 2.22 very large CM vs. WD: 0.08 trivial CM vs. WM: 1.19 medium CM vs. ST: 0.58 small WD vs. WM: 1.12 moderate WD vs. ST: 0.48 small WM vs. ST: 0.89 medium |
| BF % | 17.75 ± 1.15 | 21.57 ± 7.16 | 18.44 ± 2.37 | 24.72 ± 5.68 | 20.36 ± 3.79 | 0.385 (0.20) |
CD vs. CM: >0.999 CD vs. WD: 0.371 CD vs. WM: 0.087 CD vs. ST: 0.628 CM vs. WD: 0.885 CM vs. WM: 0.682 CM vs. ST: 0.914 WD vs. WM: 0.095 WD vs. ST: 0.400 WM vs. ST: 0.250 |
CD vs. CM: 0.74 medium CD vs. WD: 0.37 small CD vs. WM: 1.59 large CD vs. ST: 1.02 medium CM vs. WD: 0.58 small CM vs. WM: 0.49 small CM vs. ST: 0.20 small WD vs. WM: 1.37 large WD vs. ST: 0.63 medium WM vs. ST: 0.85 medium |
| AW-first half (A.U.) | 1335 ± 57.39 | 1411 ± 128.0 | 1335 ± 59.95 | 1434 ± 69.45 | 1404 ± 8.44 | 0.210 (0.75) |
CD vs. CM: 0.485 CD vs. WD: 0.885 CD vs. WM: 0.063 CD vs. ST: 0.400 CM vs. WD: 0.485 CM vs. WM: 0.904 CM vs. ST: >0.999 WD vs. WM: 0.111 WD vs. ST: 0.057 WM vs. ST: 0.392 |
CD vs. CM: 0.76 medium CD vs. WD: 0.00 trivial CD vs. WM: 1.53 trivial CD vs. ST: 1.54 large CM vs. WD: 0.76 medium CM vs. WM: 0.23 trivial CM vs. ST: 0.07 trivial WD vs. WM: 1.51 large WD vs. ST: 1.47 large WM vs. ST: 0.52 small |
| AW-second half (A.U.) | 1168 ± 58.49 | 1169 ± 101.9 | 1214 ± 62.22 | 1176 ± 66.71 | 1208 ± 61.64 | 0.904 (0.99) |
CD vs. CM: 0.885 CD vs. WD: 0.685 CD vs. WM: 0.555 CD vs. ST: 0.400 CM vs. WD: 0.885 CM vs. WM: >0.999 CM vs. ST: 0.857 WD vs. WM: 0.555 WD vs. ST: >0.999 WM vs. ST: >0.999 |
CD vs. CM: 0.01 trivial CD vs. WD: 0.76 medium CD vs. WM: 0.12 trivial CD vs. ST: 0.66 medium CM vs. WD: 0.53 small CM vs. WM: 0.084 trivial CM vs. ST: 0.44 trivial WD vs. WM: 0.58 small WD vs. ST: 0.09 medium WM vs. ST: 0.49 small |
| 10 m (s) | 1.16 ± 0.04 | 1.35 ± 0.07 | 1.26 ± 0.01 | 1.35 ± 0.08 | 1.29 ± 0.07 |
0.025 (1.90) |
CD vs. CM: 0.028 CD vs. WD: 0.028 CD vs. WM: 0.031 CD vs. ST: 0.085 CM vs. WD: 0.057 CM vs. WM: 0.904 CM vs. ST: 0.628 WD vs. WM: 0.190 WD vs. ST: 0.628 WM vs. ST: 0.464 |
CD vs. CM: 3.33 very large CD vs. WD: 3.43 very large CD vs. WM: 2.88 very large CD vs. ST: 2.40 very large CM vs. WD: 1.80 large CM vs. WM: 0.00 trivial CM vs. ST: 0.85 medium WD vs. WM: 1.48 large WD vs. ST: 0.66 medium WM vs. ST: 0.78 medium |
| 30 m (s) | 3.48 ± 0.03 | 3.85 ± 0.16 | 3.58 ± 0.07 | 3.85 ± 0.19 | 3.60 ± 0.17 |
0.017 (2.15) |
CD vs. CM: 0.028 CD vs. WD: 0.057 CD vs. WM: 0.02 CD vs. ST: 0.285 CM vs. WD: 0.057 CM vs. WM: 0.904 CM vs. ST: 0.114 WD vs. WM: 0.119 WD vs. ST: >0.999 WM vs. ST: 0.142 |
CD vs. CM: 3.21 very large CD vs. WD: 1.85 large CD vs. WM: 2.55 very large CD vs. ST: 1.09 medium CM vs. WD: 2.18 very large CM vs. WM: 0.00 trivial CM vs. ST: 1.52 large WD vs. WM: 1.79 large WD vs. ST: 0.16 trivial WM vs. ST: 1.36 large |
| V IFT (km/h) | 17.00 ± 1.58 | 16.00 ± 0.91 | 17.00 ± 1.58 | 16.10 ± 1.81 | 16.00 ± 1.73 | 0.760 (0.81) |
CD vs. CM: 0.457 CD vs. WD: >0.999 CD vs. WM: 0.539 CD vs. ST: 0.571 CM vs. WD: 0.457 CM vs. WM: 0.754 CM vs. ST: 0.914 WD vs. WM: 0.539 WD vs. ST: 0.571 WM vs. ST: >0.999 |
CD vs. CM: 0.77 medium CD vs. WD: 0.00 trivial CD vs. WM: 0.52 small CD vs. ST: 0.60 medium CM vs. WD: 0.77 medium CM vs. WM: 0.06 trivial CM vs. ST: 0.00 trivial WD vs. WM: 0.52 small WD vs. ST: 0.60 medium WM vs. ST: 0.05 trivial |
| VO2max (mL.kg−1 min−1) | 45.25 ± 2.98 | 43.08 ± 1.56 | 45.40 ± 2.90 | 43.96 ± 3.47 | 43.27 ± 3.40 | 0.700 (0.74) |
CD vs. CM: 0.485 CD vs. WD: >0.999 CD vs. WM: 0.730 CD vs. ST: 0.457 CM vs. WD: 0.485 CM vs. WM: 0.730 CM vs. ST: 0.628 WD vs. WM: 0.730 WD vs. ST: 0.228 WM vs. ST: 0.785 |
CD vs. CM: 0.91 medium CD vs. WD: 0.05 trivial CD vs. WM: 0.39 small CD vs. ST: 0.62 medium CM vs. WD: 0.99 medium CM vs. WM: 0.31 small CM vs. ST: 0.07 trivial WD vs. WM: 0.44 small WD vs. ST: 0.68 medium WM vs. ST: 0.20 small |
| HRmax (bpm) | 206.0 ± 5.77 | 205.0 ± 8.40 | 200.8 ± 11.79 | 199.6 ± 17.95 | 202.7 ± 4.72 | 0.959 (1.07) |
CD vs. CM: >0.999 CD vs. WD: 0.828 CD vs. WM: 0.904 CD vs. ST: 0.714 CM vs. WD: 0.828 CM vs. WM: >0.999 CM vs. ST: 0.714 WD vs. WM: 0.507 WD vs. ST: 0.685 WM vs. ST: 0.785 |
CD vs. CM: 0.13 trivial CD vs. WD: 0.56 small CD vs. WM: 0.45 small CD vs. ST: 0.61 medium CM vs. WD: 0.41 small CM vs. WM: 0.36 small CM vs. ST: 0.32 small WD vs. WM: 0.07 trivial WD vs. ST: 0.19 trivial WM vs. ST: 0.20 small |
BF% = body fat; 10 m = 10 meters; med = median; 30 m = 30 meters; HRmax = heart rate maximum; PHV = peak height velocity; V IFT = the final velocity of intermittent fitness test 30–15; A.U. = arbitrary units; CD = central defender; CM = central midfielder; ST = striker; WD = wide defender; WM = wide midfielder. Significant differences (p ≤ 0.05) are highlighted in bold.