Table 1.

Average distance, running speed, step length, and frequency over 50-m and for six sections of steps during 50-m sprinting.

Variables [units]	Average	1–4	5–8	9–12	13–16	17–20	21–22
Distance [m]		3.0 ± 0.3	9.0 ± 0.7	16.3 ± 1.2	24.2 ± 1.6	32.5 ± 2.1	38.8 ± 2.4
Running speed [m/s]	8.34 ± 0.21	5.56 ± 0.22	7.55 ± 0.19	8.56 ± 0.24	9.08 ± 0.24	9.34 ± 0.30	9.44 ± 0.34
Step length [m]	1.88 ± 0.10	1.30 ± 0.11	1.70 ± 0.12	1.91 ± 0.12	2.03 ± 0.12	2.09 ± 0.11	2.11 ± 0.12
Step frequency [Hz]	4.44 ± 0.25	4.29 ± 0.28	4.46 ± 0.24	4.50 ± 0.26	4.48 ± 0.26	4.48 ± 0.26	4.49 ± 0.29

1–4, 1st to 4th step section; 5–8, 5th to 8th step section; 9–12, 9th to 12th step section; 13–16, 13th to 16th step section; 17–20, 17th to 20th step section; 21–22, 21st to 22nd step section.