The Scientific World Journal

Research Article

Cardiac Output and Performance during a Marathon Race in Middle-Aged Recreational Runners

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 kmSV% SVmaxHR% HRmaxCO% COmaxv%v ̇ V O 2 m a x
4 7 2 . 2 ± 1 1 . 3 8 4 . 6 ± 7 . 4 7 6 . 6 ± 2 3 . 0 8 1 . 1 ± 9 . 4
8 7 3 . 0 ± 1 1 . 8 8 7 . 5 ± 4 . 2 8 0 . 6 ± 2 3 . 4 8 1 . 3 ± 7 . 5
12 7 6 . 0 ± 9 . 6 8 9 . 1 ± 4 . 0 8 5 . 0 ± 2 3 . 1 8 1 . 5 ± 6 . 4
16 7 8 . 4 ± 1 1 . 9 8 8 . 8 ± 3 . 8 8 5 . 0 ± 2 3 . 1 7 8 . 6 ± 8 . 1
20 7 9 . 4 ± 1 2 . 7 8 8 . 4 ± 3 . 1 8 3 . 5 ± 1 7 . 2 7 9 . 0 ± 8 . 4
24 7 9 . 4 ± 1 1 . 0 8 8 . 1 ± 4 . 9 8 6 . 1 ± 1 6 . 8 7 6 . 6 ± 9 . 0
28 7 8 . 0 ± 8 . 8 8 8 . 3 ± 4 . 9 8 5 . 9 ± 1 8 . 2 7 4 . 4 ± 5 . 2
32 7 7 . 6 ± 1 0 . 3 8 5 . 0 ± 7 . 3 8 2 . 6 ± 1 8 . 4 7 1 . 8 ± 8 . 9
36 7 8 . 8 ± 1 2 . 4 8 5 . 4 ± 7 . 5 8 2 . 9 ± 1 5 . 8 6 6 . 6 ± 6 . 2
40 7 8 . 7 ± 9 . 8 8 6 . 3 ± 8 . 5 8 4 . 7 ± 1 8 . 4 6 7 . 0 ± 7 . 5
Mean 7 7 . 2 ± 1 1 . 0 8 7 . 2 ± 5 . 6 8 3 . 3 ± 1 9 . 7 7 5 . 7 ± 7 . 7
Values are presented as the mean ± SD.
SV: stroke volume; HR: heart rate; CO: cardiac output; v%v ̇ V O 2 m a x : the racing speed as a percentage of the speed at ̇ V O 2 m a x recorded in the incremental test.