. 2012 May 3;2012:810859. doi: 10.1100/2012/810859

Table 3.

SV, HR, CO and speed (v%vMar) every 4 km of the marathon race, all expressed as a percentage of the maximal values in the incremental test.

Race km	SV% SV_max	HR% HR_max	CO% CO_max	v%v $\dot{V} O_{2 \max}$
4	72.2 ± 11.3	84.6 ± 7.4	76.6 ± 23.0	81.1 ± 9.4
8	73.0 ± 11.8	87.5 ± 4.2	80.6 ± 23.4	81.3 ± 7.5
12	76.0 ± 9.6	89.1 ± 4.0	85.0 ± 23.1	81.5 ± 6.4
16	78.4 ± 11.9	88.8 ± 3.8	85.0 ± 23.1	78.6 ± 8.1
20	79.4 ± 12.7	88.4 ± 3.1	83.5 ± 17.2	79.0 ± 8.4
24	79.4 ± 11.0	88.1 ± 4.9	86.1 ± 16.8	76.6 ± 9.0
28	78.0 ± 8.8	88.3 ± 4.9	85.9 ± 18.2	74.4 ± 5.2
32	77.6 ± 10.3	85.0 ± 7.3	82.6 ± 18.4	71.8 ± 8.9
36	78.8 ± 12.4	85.4 ± 7.5	82.9 ± 15.8	66.6 ± 6.2
40	78.7 ± 9.8	86.3 ± 8.5	84.7 ± 18.4	67.0 ± 7.5

Mean	77.2 ± 11.0	87.2 ± 5.6	83.3 ± 19.7	75.7 ± 7.7

Values are presented as the mean ± SD.

SV: stroke volume; HR: heart rate; CO: cardiac output; v%v $\dot{V} O_{2 \max}$ : the racing speed as a percentage of the speed at $\dot{V} O_{2 \max}$ recorded in the incremental test.