Table 4.
Age-adjusted means (standard errors are given in parentheses) by stage of maturity within age groups and ANCOVA results with decimal age as a covariate.
| Variable | Under 13 | F(p) | η2 | Under 14 | F(p) | η2 | Under 15 | F(p) | η2 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Early (n = 113) | Average (n = 120) | Early (n = 186) | Average (n = 178) | Early (n = 91) | Average (n = 130) | |||||||
| Body height (cm) | 176.1 (0.5) | 161.0 (0.5) | 55.84 (***) | 0.20 | 182.4 (0.4) | 168.7 (0.4) | 29.4 (***) | 0.14 | 187.4 (0.5) | 175.4 (0.4) | 7.40 (***) | 0.06 |
| Body mass (kg) | 64.1 (0.8) | 49.0 (0.8) | 3.64 (*) | 0.03 | 70.7 (0.6) | 56.2 (0.7) | 10.3 (***) | 0.05 | 77.8 (0.9) | 63.7 (0.8) | 7.84 (***) | 0.07 |
| Standing reach (cm) | 236.7 (0.8) | 216.0 (0.7) | 22.30 (***) | 0.16 | 244.3 (0.6) | 226.9 (0.6) | 21.7 (***) | 0.11 | 250.4 (0.8) | 235.4 (0.6) | 0.55 (ns) | – |
| 5 m (s) | 1.166 (0.010) | 1.189 (0.010) | 5.15 (**) | 0.04 | 1.132 (0.007) | 1.149 (0.007) | 0.18 (ns) | – | 1.123 (0.009) | 1.141 (0.008) | 0.22 (ns) | – |
| 10 m (s) | 1.979 (0.013) | 2.023 (0.013) | 7.69 (**) | 0.06 | 1.916 (0.009) | 1.942 (0.009) | 0.90 (ns) | – | 1.899 (0.011) | 1.909 (0.009) | 0.06 (ns) | – |
| 20 m (s) | 3.445 (0.022) | 3.531 (0.021) | 9.77 (**) | 0.08 | 3.310 (0.014) | 3.357 (0.014) | 3.52 (*) | 0.02 | 3.253 (0.017) | 3.268 (0.015) | 1.91 (ns) | – |
| Agility—S1 (s) | 1.563 (0.015) | 1.618 (0.015 | 0.89 (ns) | – | 1.537 (0.012) | 1.573 (0.013) | 1.31 (ns) | – | 1.533 (0.013) | 1.568 (0.011) | 0.29 (ns) | – |
| Agility—S2 (s) | 5.362 (0.066) | 5.631 (0.064) | 4.92 (**) | 0.04 | 5.342 (0.037) | 5.350 (0.037) | 3.20 (ns) | – | 5.130 (0.060) | 5.221 (0.050) | 1.52 (ns) | – |
| Agility—S3 (s) | 7.233 (0.068) | 7.538 (0.066) | 8.33 (**) | 0.07 | 7.104 (0.044) | 7.112 (0.045) | 3.04 (ns) | – | 6.894 (0.059) | 6.968 (0.050) | 1.09 (ns) | – |
| Agility—S4 (s) | 9.548 (0.088) | 9.784 (0.085) | 5.57 (**) | 0.05 | 9.352 (0.062) | 9.238 (0.064) | 2.57 (ns) | – | 9.031 (0.075) | 9.127 (0.063) | 0.62 (ns) | – |
| Agility—S5 (s) | 12.954 (0.113) | 13.347 (0.110) | 8.12 (**) | 0.07 | 12.625 (0.077) | 12.586 (0.079) | 2.91 (ns) | – | 12.209 (0.094) | 12.350 (0.079) | 1.70 (ns) | – |
| AgilityTotal (s) | 14.837 (0.129) | 15.274 (0.125) | 8.79 (**) | 0.07 | 14.451 (0.088) | 14.406 (0.090) | 2.31 (ns) | – | 14.002 (0.104) | 14.113 (0.087) | 1.62 (ns) | – |
| SVJmax (cm) | 280.6 (1.0) | 257.6 (0.9) | 27.18 (***) | 0.19 | 292.1 (0.8) | 273.7 (0.8) | 26.86 (***) | 0.13 | 301.4 (1.0) | 285.6 (0.9) | 3.85 (*) | 0.03 |
| VJmax (cm) | 293.0 (1.1) | 268.5 (1.0) | 33.71 (***) | 0.23 | 305.6 (0.9) | 286.0 (1.0) | 23.93 (***) | 0.12 | 316.9 (1.2) | 300.7 (1.0) | 4.60 (*) | 0.04 |
| SVJ (cm) | 43.9 (0.7) | 41.6 (0.7) | 4.19 (*) | 0.03 | 47.8 (0.5) | 46.8 (0.5) | 5.10 (**) | 0.03 | 51.0 (0.7) | 50.2 (0.6) | 4.12 (*) | 0.04 |
| VJ (cm) | 56.3 (0.9) | 52.5 (0.9) | 9.84 (**) | 0.08 | 61.2 (0.7) | 59.1 (0.7) | 5.83 (**) | 0.03 | 66.5 (0.9) | 65.5 (0.8) | 5.48 (**) | 0.05 |
| Yo-Yo distance (m) | 1081 (47) | 927 (46) | 3.15 (*) | 0.03 | 1240 (40) | 1300 (41) | 5.24 (**) | 0.03 | 1359 (62) | 1465 (51) | 3.15 (*) | 0.03 |
| Yo-Yo VO2max (ml/kg/min) | 45.5 (0.4) | 44.2 (0.4) | 3.13 (*) | 0.03 | 46.8 (0.3) | 47.3 (0.3) | 5.24 (**) | 0.03 | 47.8 (0.5) | 48.7 (0.4) | 3.15 (*) | 0.03 |
S1–S5 stages, SVJ standing vertical jump, VJ vertical jump, ns nonsignificant difference.
*p < 0.05, **p < 0.01, ***p < 0.001.