Table 1. Comparison of anthropometric and physiological characteristics of early-, average-, and late-maturing players in various age groups from 13 to 15 years old.
The comparison of anthropometric and physiological abilities of early-, average-, and late-maturity football players in each age group from 13 to 15 years old, and the calculated effect size.
| Age | Early | Average | Late | df | F | p | η2 | |
|---|---|---|---|---|---|---|---|---|
| 13 (y) | N = 59 | 15 | 33 | 11 | 2 | |||
| Height (cm) | 173.6 ± 3.77†,‡ | 163.8 ± 4.93†,§ | 159.6 ± 5.83‡,§ | 31.194 | <0.001 | 0.527 | ||
| Body mass (kg) | 55.5 ± 6.63†,‡ | 51.1 ± 4.94† | 47.0 ± 5.31‡ | 7.921 | 0.001 | 0.221 | ||
| C thigh (cm) | 50.1 ± 3.79‡ | 48.9 ± 3.28§ | 43.71 ± 3.81‡,§ | 11.819 | 0.001 | 0.297 | ||
| % Fat | 11.49 ± 1.53 | 12.27 ± 1.87 | 12.03 ± 2.22 | 0.917 | 0.426 | 0.032 | ||
| 5 × 25-m RSA (s) | 35.29 ± 0.93†,‡ | 36.15 ± 0.87†,§ | 37.76 ± 1.15‡,§ | 21.995 | <0.001 | 0.440 | ||
| Left T (s) | 8.49 ± 0.35‡ | 8.77 ± 0.45§ | 9.18 ± 0.39‡,§ | 8.822 | <0.001 | 0.240 | ||
| Right T (s) | 8.58 ± 0.40‡ | 8.79 ± 0.45§ | 9.20 ± 0.39‡,§ | 6.808 | 0.001 | 0.196 | ||
| SLJ (m) | 221.3 ± 10.40†,‡ | 209.9 ± 16.21†,§ | 191.5 ± 9.05‡,§ | 14.815 | <0.001 | 0.346 | ||
| 10 m (s) | 1.84 ± 0.13‡ | 1.94 ± 0.19§ | 2.11 ± 0.13‡,§ | 7.862 | 0.001 | 0.219 | ||
| 30 m (s) | 4.48 ± 0.16†,‡ | 4.77 ± 0.27†§ | 5.13 ± 0.17‡,§ | 24.977 | <0.001 | 0.471 | ||
| YYIR1 (m) | 1,962.7 ± 197.3 | 1,871.5 ± 257.6 | 1,816.4 ± 256.3 | 1.249 | 0.295 | 0.043 | ||
| 14 (y) | N = 56 | 10 | 31 | 15 | ||||
| Height (cm) | 176.4 ± 4.01‡ | 171.9 ± 5.13§ | 164.6 ± 6.13‡,§ | 16.945 | <0.001 | 0.390 | ||
| Body mass (kg) | 62.6 ± 4.67†,‡ | 55.9 ± 5.34†,§ | 50.2 ± 6.17‡,§ | 15.726 | <0.001 | 0.372 | ||
| C thigh (cm) | 54.0 ± 1.93 | 51.4 ± 6.44 | 49.2 ± 3.81 | 2.461 | 0.095 | 0.085 | ||
| % Fat | 11.81 ± 0.97 | 11.63 ± 1.23 | 11.08 ± 1.06 | 1.540 | 0.224 | 0.055 | ||
| 5 × 25-m RSA (s) | 33.96 ± 1.48‡ | 35.02 ± 1.58 | 36.17 ± 2.12‡ | 5.086 | 0.010 | 0.161 | ||
| Left T (s) | 8.21 ± 0.28‡ | 8.42 ± 0.41 | 8.73 ± 0.72‡ | 3.604 | 0.034 | 0.120 | ||
| Right T (s) | 8.22 ± 0.29‡ | 8.44 ± 0.41 | 8.72 ± 0.66‡ | 3.531 | 0.036 | 0.118 | ||
| SLJ (m) | 233.1 ± 11.89‡ | 224.0 ± 12.18§ | 208.2 ± 13.52‡,§ | 13.461 | <0.001 | 0.337 | ||
| 10 m (s) | 1.74 ± 0.17 | 1.88 ± 0.20 | 1.88 ± 0.16 | 2.297 | 0.110 | 0.080 | ||
| 30 m (s) | 4.39 ± 0.25‡ | 4.61 ± 0.30 | 4.74 ± 0.20‡ | 5.064 | 0.010 | 0.160 | ||
| YYIR1 (m) | 2,052.0 ± 66.1 | 2,047.1 ± 162.1 | 2,002.7 ± 134.6 | 0.565 | 0.572 | 0.021 | ||
| 15 (y) | N = 52 | 11 | 31 | 10 | ||||
| Height (cm) | 177.2 ± 5.65‡ | 175.1 ± 5.58§ | 168.2 ± 5.86‡,§ | 7.755 | 0.001 | 0.240 | ||
| Body mass (kg) | 64.4 ± 5.64‡ | 61.0 ± 5.02§ | 54.1 ± 4.94‡,§ | 10.887 | <0.001 | 0.308 | ||
| C thigh (cm) | 54.1 ± 3.04 | 53.3 ± 4.08 | 50.4 ± 3.04 | 3.216 | 0.310 | 0.116 | ||
| % Fat | 12.36 ± 1.33 | 12.41 ± 1.66 | 11.36 ± 1.54 | 1.739 | 0.186 | 0.066 | ||
| 5 × 25-m RSA (s) | 33.51 ± 1.13‡ | 34.08 ± 1.31 | 34.99 ± 0.99‡ | 3.944 | 0.026 | 0.139 | ||
| Left T (s) | 8.04 ± 0.31†,‡ | 8.39 ± 0.35† | 8.65 ± 0.55‡ | 6.706 | 0.003 | 0.215 | ||
| Right T (s) | 8.05 ± 0.31‡ | 8.38 ± 0.41 | 8.66 ± 0.55‡ | 5.535 | 0.007 | 0.184 | ||
| SLJ (m) | 236.1 ± 15.02‡ | 239.9 ± 12.09§ | 213.2 ± 3.74‡,§ | 19.759 | <0.001 | 0.446 | ||
| 10 m (s) | 1.81 ± 0.19 | 1.85 ± 0.18 | 1.87 ± 0.018 | 0.318 | 0.729 | 0.013 | ||
| 30 m (s) | 4.43 ± 0.19 | 4.44 ± 0.26 | 4.62 ± 0.21 | 2.541 | 0.089 | 0.094 | ||
| YYIR1 (m) | 2,105.5 ± 104.3 | 2,035.5 ± 176.5 | 2,006.0 ± 77.2 | 1.300 | 0.282 | 0.050 |
Notes:
SLJ, standing long jump; 5 × 25-m RSA, 5 × 25-m repeated sprint ability; YYIR1, YoYo intermittent recovery test level 1.
†
Significant difference between the early- and average-maturing groups: p < 0.05.
‡
Significant difference between the early- and late-maturing groups: p < 0.05.
§
Significant difference between the average- and late-maturing groups: p < 0.05.