Table 6

Sit-ups (n/30 s) centiles by age and sex based on 481 032 performances of children and adolescents aged 9–17 years representing 23 countries

Age (years)	n	P₅	P₁₀	P₂₀	P₃₀	P₄₀	P₅₀	P₆₀	P₇₀	P₈₀	P₉₀	P₉₅
Boys
9	31 757	9	11	13	15	16	17	18	20	21	23	25
10	33 748	11	13	15	17	18	19	20	22	23	25	27
11	35 559	13	14	16	18	19	20	22	23	24	26	28
12	29 338	14	15	17	19	20	21	22	24	25	27	29
13	30 805	14	16	18	20	21	22	23	24	26	28	29
14	29 024	15	17	19	20	22	23	24	25	27	29	30
15	22 541	17	18	20	22	23	24	25	26	28	30	31
16	18 751	18	19	21	22	24	25	26	27	29	30	32
17	12 059	18	20	22	23	24	25	27	28	29	31	33
Girls
9	31 091	9	11	13	14	15	17	18	19	21	23	25
10	33 131	10	12	14	16	17	18	19	20	22	24	26
11	34 525	11	13	15	16	17	19	20	21	22	24	26
12	31 415	12	13	15	17	18	19	20	21	23	24	26
13	29 168	12	14	15	17	18	19	20	21	23	24	26
14	27 377	12	14	16	17	18	19	20	21	23	25	26
15	21 072	13	14	16	17	19	20	21	22	23	25	26
16	18 365	13	15	16	18	19	20	21	22	23	25	27
17	11 306	13	15	17	18	19	20	21	22	24	25	27