Table 3. Mean and coefficient of variation (CV) of speed in each 10 km-split between runners with or without AKI (Stage II) development.

Each 10 km-split	Speed, m/s			CV of speed, %
	Normal (n = 22)	AKI Stage II (n = 4)	P value	Normal (n = 22)	AKI Stage II (n = 4)	P value
0 – 10th km	3.15 ± 0.34	2.91 ± 0.21	0.191	2.63 ± 1.03	3.73 ± 1.31	0.070
10th– 20th km	3.09 ± 0.33	2.73 ± 0.24	0.046	4.34 ± 2.27	7.91 ± 2.40	0.009
20th– 30th km	2.94 ± 0.38	2.51 ± 0.29	0.041	5.87 ± 3.86	10.74 ± 2.39	0.024
30th– 40th km	2.79 ± 0.38	2.41 ± 0.24	0.069	7.24 ± 4.04	13.27 ± 4.18	0.012
40th– 50th km	2.70 ± 0.37	2.39 ± 0.21	0.123	8.27 ± 3.92	15.26 ± 2.90	0.003
50th– 60th km	2.61 ± 0.34	2.25 ± 0.12	0.045	8.97 ± 4.53	14.47 ± 3.63	0.032
60th– 70th km	2.54 ± 0.28	2.24 ± 0.12	0.048	8.46 ± 4.07	13.83 ± 2.87	0.019
70th– 80th km	2.46 ± 0.35	2.16 ± 0.22	0.113	8.64 ± 3.99	12.91 ± 6.11	0.081
80th– 90th km	2.35 ± 0.33	2.13 ± 0.26	0.209	9.54 ± 4.60	14.07 ± 5.20	0.088
90th– 100th km	2.44 ± 0.39	2.26 ± 0.35	0.400	9.80 ± 4.69	14.78 ± 8.77	0.101