Table 4.

Number of subjects with various types of longitudinal arching depending on age and gender among boys

Age (years)	Boys
	Clark L			Clark R
	h	n	f	h	n	f
3–6	33	15	20	36	14	18
7	34	11	10	36	8	11
8	49	23	10	56	18	8
9	50	25	5	54	22	4
10	35	16	8	36	14	9
11	45	27	6	54	18	6
12	56	36	7	65	28	6
13	26	15	2	27	13	3

L left foot, R right foot, h number of high arched feet, n number of normal feet, f number of flat feet