Table 2

Results of the MANCOVAs with maturation as the covariate within age group: differences by age and playing level

	Age difference					Playing level (group)
	Wilks’ lambda	F	df	P	η²	Wilks’ lambda	F	df	P	η²
Anthropometry
Under-13	0.614	20.141	3, 96	0.000	0.386	0.946	0.899	6, 192	0.496	0.027
Under-14	0.441	44.361	3, 105	0.000	0.559	0.886	2.176	6, 210	0.047	0.059
Under-15	0.461	34.654	3, 89	0.000	0.539	0.852	2.470	6, 178	0.026	0.077
Under-16	0.514	18.877	3, 60	0.000	0.486	0.919	0.858	6, 120	0.528	0.041
Strength, power, flexibility
Under-13	0.958	0.851	5, 98	0.517	0.042	0.869	1.429	10, 196	0.170	0.068
Under-14	0.811	5.216	5, 112	0.000	0.189	0.834	2.125	10, 224	0.024	0.087
Under-15	0.817	3.946	5, 88	0.003	0.183	0.562	5.871	10, 176	0.000	0.250
Under-16	0.886	1.474	5, 57	0.213	0.114	0.592	3.422	10, 114	0.001	0.231
Speed
Under-13	0.998	0.050	3, 91	0.985	0.002	0.694	6.067	6, 182	0.000	0.167
Under-14	0.950	1.853	3, 106	0.142	0.050	0.755	5.319	6, 212	0.000	0.131
Under-15	0.785	8.145	3, 89	0.000	0.215	0.765	4.242	6, 178	0.001	0.125
Under-16	0.717	6.856	3, 52	0.001	0.283	0.816	1.852	6, 104	0.096	0.097
Cardiorespiratory endurance,
anaerobic capacity
Under-13	0.958	1.998	2, 91	0.142	0.042	0.911	2.174	4, 182	0.074	0.046
Under-14	0.971	1.604	2, 106	0.206	0.029	0.800	6.243	4, 212	0.000	0.105
Under-15	0.816	10.042	2, 89	0.000	0.184	0.683	9.327	4, 178	0.000	0.173
Under-16	0.854	4.698	2, 55	0.013	0.146	0.691	5.582	4, 110	0.000	0.169
Technical skills
Under-13	0.960	1.028	4, 99	0.397	0.040	0.690	5.047	8, 198	0.000	0.169
Under-14	0.897	2.967	4, 103	0.023	0.103	0.697	5.086	8, 206	0.000	0.178
Under-15	0.961	0.933	4, 91	0.448	0.039	0.616	6.235	8, 182	0.000	0.215
Under-16	0.961	0.564	4, 56	0.690	0.039	0.778	1.869	8, 112	0.072	0.118