Darwinian Selection Discriminates Young Athletes: the Relative Age Effect in Relation to Sporting Performance

Sports Medicine - Open

Table 9 Javelin performance by age group, sex and birth tertile in Swedish athletics

Age	Sex	ANOVA			Tukey’s		Result (cm) mean ± SD
Age	Sex	N	F ratio	P	Levels	P	T1	T2	T3
14	Male	279	0.73	0.485			4134 ± 490	4120 ± 561	4032 ± 340
14	Female	683	1.00	0.368			3204 ± 489	3228 ± 554	3146 ± 412
15	Male	441	0.08	0.927			4439 ± 598	4431 ± 510	4461 ± 570
15	Female	823	0.53	0.591			3126 ± 459	3124 ± 483	3094 ± 432
16	Male	462	1.43	0.241			4656 ± 734	4716 ± 653	4561 ± 580
16	Female	1070	0.35	0.702			3126 ± 474	3124 ± 545	3094 ± 547
17	Male	500	0.23	0.794			4791 ± 729	4754 ± 661	4813 ± 734
	Female	712	5.07	0.007	T1–T3	0.0451	3203 ± 531	3250 ± 564	3084 ± 512
	Female	712	5.07	0.007	T2–T3	0.0056	3203 ± 531	3250 ± 564	3084 ± 512
19	Male	610	0.82	0.443			5000 ± 676	5079 ± 777	5069 ± 747
19	Female	688	2.90	0.056			3276 ± 521	3321 ± 690	3177 ± 545
22	Male	336	1.36	0.257			5276 ± 777	5444 ± 920	5296 ± 679
	Female	324	4.23	0.015	T1–T3	0.0174	3478 ± 666	3476 ± 700	3206 ± 624
	Female	324	4.23	0.015	T2–T3	0.0313	3478 ± 666	3476 ± 700	3206 ± 624
≥ 23	Male	295	0.82	0.440			5219 ± 778	5151 ± 653	5082 ± 694
≥ 23	Female	174	2.59	0.078			3333 ± 700	3182 ± 580	3065 ± 585