Table 1.
Descriptive analysis and comparison between MS and LS U14 male players
| Variable | Group | ANOVA | ||||
|---|---|---|---|---|---|---|
| MS (n = 9) | LS (n = 14) | |||||
| Mean ± SD | Mean ± SD | Mean Diff ± SD | p | Min to Max | Ƞ2p | |
| Maturity offset (years) | 0.62 ± 0.32 | −0.47 ± 0.52 | 1.09 ± 0.25 | < 0.001* | 0.58 to 1.60 | 0.482 |
| APHV (years) | 13.02 ± 0.35 | 13.65 ± 0.38 | −0.63 ± 0.19 | 0.003* | −1.03 to −0.24 | 0.344 |
| Body mass (kg) | 61.96 ± 10.12 | 55.96 ± 9.67 | 6.00 ± 4.93 | 0.237 | −4.25 to 16.26 | 0.066 |
| Height (cm) | 175.58 ± 8.02 | 163.96 ± 7.12 | 11.62 ± 3.69 | 0.005* | 3.95 to 19.29 | 0.321 |
| Arm spam (cm) | 177.46 ± 8.96 | 167.06 ± 8.48 | 10.40 ± 4.33 | 0.026* | 1.39 to 19.41 | 0.215 |
| Sitting height (cm) | 90.31 ± 2.12 | 83.31 ± 2.76 | 7.00 ± 1.34 | < 0.001* | 4.21 to 9.79 | 0.565 |
| Upper limb length (cm) | 78.53 ± 3.75 | 74.68 ± 3.93 | 3.85 ± 1.97 | 0.064 | −0.24 to 7.94 | 0.154 |
| Biacromial breadth (cm) | 37.64 ± 2.02 | 35.42 ± 1.76 | 2.22 ± 0.92 | 0.025* | 0.31 to 4.12 | 0.218 |
| Biiliocristal breadth (cm) | 26.17 ± 1.94 | 25.08 ± 1.80 | 1.09 ± 0.92 | 0.250 | −0.83 to 3.01 | 0.062 |
| Femur breadth (cm) | 10.03 ± 0.69 | 9.72 ± 0.46 | 0.31 ± 0.26 | 0.254 | −0.24 to 0.85 | 0.061 |
| Humerus breadth (cm) | 7.02 ± 0.48 | 6.65 ± 0.29 | 0.37 ± 0.17 | 0.041* | 0.02 to 0.72 | 0.184 |
| Bi−styloid breadth (cm) | 5.54 ± 0.40 | 5.14 ± 0.33 | 0.40 ± 0.18 | 0.032* | 0.04 to 0.77 | 0.200 |
| Corrected arm girth (cm) | 22.44 ± 3.10 | 21.77 ± 1.98 | 0.67 ± 1.13 | 0.560 | −1.68 to 3.03 | 0.016 |
| Corrected thigh girth (cm) | 43.01 ± 3.57 | 42.64 ± 3.53 | 0.38 ± 1.79 | 0.836 | −3.34 to 4.09 | 0.002 |
| Corrected leg girth (cm) | 31.29 ± 2.23 | 30.43 ± 1.75 | 0.86 ± 0.94 | 0.370 | −1.09 to 2.80 | 0.038 |
| Endomorphy | 2.23 ± 1.19 | 2.92 ± 1.68 | −0.69 ± 0.81 | 0.401 | −2.37 to 0.99 | 0.034 |
| Mesomorphy | 3.88 ± 1.72 | 4.71 ± 1.30 | −0.83 ± 0.70 | 0.250 | −2.29 to 0.63 | 0.063 |
| Ectomorphy | 4.10 ± 2.23 | 3.05 ± 1.60 | 1.05 ± 0.88 | 0.246 | −0.78 to 2.88 | 0.063 |
| ∑6 Skinfolds (mm) | 58.64 ± 27.62 | 69.90 ± 32.27 | −11.26 ± 15.89 | 0.486 | −44.31 to 21.79 | 0.023 |
| ∑8 Skinfolds (mm) | 73.74 ± 35.43 | 88.64 ± 43.32 | −14.90 ± 21.20 | 0.490 | −58.99 to 29.18 | 0.023 |
| Fat mass (%) | 15.40 ± 6.19 | 18.04 ± 7.45 | −2.64 ± 3.65 | 0.478 | −10.24 to 4.95 | 0.024 |
| Muscle mass (%) | 37.53 ± 2.26 | 38.28 ± 2.50 | −0.75 ± 1.24 | 0.550 | −3.34 to 1.83 | 0.017 |
| Bone mass (%) | 19.49 ± 2.70 | 18.22 ± 2.56 | 1.27 ± 1.31 | 0.345 | −1.46 to 3.99 | 0.043 |
| Fat mass (kg) | 9.99 ± 5.06 | 10.65 ± 5.88 | −0.66 ± 2.90 | 0.822 | −6.69 to 5.37 | 0.002 |
| Muscle mass (kg) | 23.15 ± 3.21 | 21.26 ± 2.80 | 1.89 ± 1.46 | 0.208 | −1.14 to 4.92 | 0.074 |
| Bone mass (kg) | 11.94 ± 1.71 | 10.01 ± 0.98 | 1.93 ± 0.59 | 0.003* | 0.71 to 3.15 | 0.341 |
| BMI (kg/m2) | 20.20 ± 3.89 | 20.82 ± 3.47 | −0.62 ± 1.80 | 0.734 | −4.36 to 3.12 | 0.006 |
| Muscle−bone index | 1.96 ± 0.32 | 2.13 ± 0.23 | −0.17 ± 0.13 | 0.197 | −0.44 to 0.10 | 0.078 |
| Sit−and−reach test (cm) | 4.70 ± 6.22 | −2.14 ± 9.04 | 6.84 ± 4.33 | 0.129 | −2.17 to 15.85 | 0.106 |
| Back scratch test (cm) | 0.17 ± 6.49 | 2.74 ± 7.56 | −2.57 ± 3.73 | 0.498 | −10.32 to 5.18 | 0.022 |
| Long jump (m) | 2.10 ± 0.13 | 1.79 ± 0.17 | 0.31 ± 0.08 | 0.001* | 0.14 to 0.48 | 0.406 |
| Medicine ball throw (m) | 5.99 ± 1.09 | 5.02 ± 0.81 | 0.97 ± 0.44 | 0.039* | 0.05 to 1.89 | 0.188 |
| CMJ (cm) | 27.85 ± 7.58 | 26.56 ± 3.53 | 1.29 ± 2.32 | 0.585 | −3.54 to 6.11 | 0.014 |
| CMJ power (W) | 698.75 ± 119.83 | 621.49 ± 98.28 | 77.26 ± 51.94 | 0.152 | −30.74 to 185.27 | 0.095 |
| 20 m sprint (s) | 3.80 ± 0.22 | 3.97 ± 0.26 | −0.18 ± 0.13 | 0.177 | −0.44 to 0.09 | 0.085 |
| Agility test (s) | 8.90 ± 0.37 | 9.44 ± 0.80 | −0.54 ± 0.37 | 0.163 | −1.32 to 0.24 | 0.090 |
MS: More successful; LS: Less successful; *: Statistically significant differences.