Table 1. Km split times, HR, and HRV measures (mean ± standard deviation) during the marathon race (10%-100%).
Parameters 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Km split times
[min:sec]		 04:18
±00:24		 04:22
±00:23		 04:26
±00:24		 04:23
±00:22		 04:19
±00:22		 04:28
±00:25		 04:30
±00:27		 04:41
±00:31		 04:50
±00:38		 04:52*
±00:37
HR
[bpm]		 163.9
±10.4		 165.6
±10.6		 166.6
±10.4		 165.1
±10.4		 167.5
±10.4		 168.5
±10.9		 168.6
±12.3		 170.6
±13.0		 170.3
±12.9		 173.6*
±13.1
meanRR
[ms]		 368
±23		 364
±23		 362
±22		 365
±24		 360
±23		 358
±24		 358
±27		 354
±27		 354
±27		 347*
±27
SDNN
[ms]		 2.6
±0.7		 2.5
±0.7		 2.5
±0.5		 2.5
±0.6		 2.4
±0.5		 2.4
±0.5		 2.5
±0.5		 2.5
±0.4		 2.5
±0.4		 2.6
±0.5
RMSSD
[ms]		 3.7
±1.1		 3.8
±1.1		 3.6
±0.8		 3.7
±1.0		 3.7
±0.8		 3.7
±0.9		 3.9
±0.8		 3.9
±0.6		 4.0
±0.6		 4.1
±0.7
DFA-alpha1
[ ]		 0.54
±0.18		 0.48
±0.15		 0.47
±0.09		 0.48
±0.13		 0.41
±0.08		 0.41
±0.10		 0.40
±0.11		 0.42
±0.09		 0.42
±0.10		 0.37*
±0.08
* significant comparing 10% (Begin) vs. 100% (End).
HR: heart rate, meanRR: average of normal RR-intervals, SDNN: standard deviation of all normal RR-intervals, RMSSD: root mean square of successive differences, DFA-alpha1: short-term scaling exponent of Detrended Fluctuation Analysis;