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

Sports Medicine - Open

Table 8 Performance in 100 m by age group, sex, and birth tertile Swedish athletics

Age	Sex	ANOVA			Tukey’s		Result(s) mean ± SD
Age	Sex	N	F ratio	P	Levels	P	T1	T2	T3
14	Male	263	0.30	0.740			11.98 ± 0.47	12.03 ± 0.34	12.05 ± 0.46
14	Female	560	0.55	0.580			12.74 ± 0.36	12.77 ± 0.32	12.76 ± 0.36
15	Male	464	0.38	0.684			11.55 ± 0.35	11.57 ± 0.37	11.53 ± 0.43
15	Female	726	0.49	0.614			12.78 ± 0.32	12.8 ± 0.3	12.77 ± 0.33
16	Male	914	5.41	0.005	T3−T1	0.019	11.49 ± 0.28	11.55 ± 0.26	11.48 ± 0.29
	Male	914	5.41	0.005	T3−T2	0.011	11.49 ± 0.28	11.55 ± 0.26	11.48 ± 0.29
	Female	816	1.78	0.169			12.72 ± 0.29	12.75 ± 0.28	12.76 ± 0.31
17	Male	993	3.18	0.042	T2−T3	0.047	11.51 ± 0.26	11.47 ± 0.31	11.53 ± 0.27
17	Female	670	1.14	0.319			12.70 ± 0.30	12.74 ± 0.28	12.74 ± 0.29
19	Male	1116	1.76	0.173			11.46 ± 0.28	11.44 ± 0.3	11.42 ± 0.31
19	Female	565	1.06	0.346			12.64 ± 0.32	12.64 ± 0.29	12.59 ± 0.32
22	Male	610	7.43	< 0.001	T3−T1	0.003	11.36 ± 0.30	11.26 ± 0.36	11.25 ± 0.33
	Male	610	7.43	< 0.001	T2−T1	0.005	11.36 ± 0.30	11.26 ± 0.36	11.25 ± 0.33
	Female	343	2.95	0.054			12.43 ± 0.38	12.54 ± 0.35	12.48 ± 0.38
≥ 23	Male	196	2.06	0.130			11.35 ± 0.32	11.36 ± 0.35	11.24 ± 0.38
≥ 23	Female	88	1.66	0.196			12.50 ± 0.39	12.57 ± 0.30	12.40 ± 0.31