Comparison between finisher and non-finisher in U3
| N | Average | SD | SD of the average | Sig. (2-sided) | |
| HR—U3 | |||||
| Finisher | 22 | 70.09 | 8.922 | 1.90 | |
| Non-finisher | 5 | 66.8 | 6.14 | 2.75 | 0.352 |
| SDNN U3 | |||||
| Finisher | 20 | 64.40 | 23.86 | 5.34 | |
| Non-finisher | 5 | 76.8 | 22.23 | 9.94 | 0.311 |
| RMSSD U3 | |||||
| Finisher | 21 | 49.43 | 20.21 | 4.41 | |
| Non-finisher | 5 | 77.76 | 59.46 | 26.59 | 0.350 |
| pNN50 U3 | |||||
| Finisher | 21 | 9.71 | 6.28 | 1.37 | |
| Non-finisher | 5 | 15.38 | 10.01 | 4.48 | 0.283 |
HR, heart rate; N, number of participants with complete data sets; pNN50, the percentage of pairs of RR intervals that are more than 50 ms apart; RMSSD, root mean square of successive differences; SDNN, the SD of all normal RR intervals; Sig., significance level; U3, investigation 7 days after the run.