Table 1

International 20mSRT norms for running speed (km/h) at the last completed stage30

	Boys			Girls
Age	N	Mean	SD	N	Mean	SD
9	101 532	10.03	0.85	98 166	9.71	0.70
10	81 538	10.13	0.92	81 415	9.75	0.77
11	79 660	10.25	1.00	78 029	9.79	0.83
12	70 266	10.47	1.11	69 497	9.83	0.88
13	72 913	10.73	1.21	62 491	9.86	0.91
14	65 317	10.97	1.28	55 035	9.89	0.93
15	53 287	11.12	1.33	43 730	9.91	0.94
16	35 490	11.27	1.37	34 978	9.93	0.95
17	29 123	11.41	1.42	29 559	9.96	0.97
Total	589 126			552 900

20mSRT, 20 m shuttle run test.