**Table 6** Frequencies according to distance covered and speed of the recorded efforts, the values showing the mean, standard deviation (±SD) and the confidence interval (CI-95%) (n = 55 measurements).

Distances for each effort |

| 0-5 m |
5-10 m |
10-40 m |

Speed zones |
Mean (±SD) |
CI-95% |
Mean (±SD) |
CI-95% |
Mean (±SD) |
CI-95% |

4-6.9 km·h^{-1} |
44.5 ± 15.4 |
37.8-51.2 |
12.7 ± 4.0 |
11.03-14.45 |
3.3 ± 1.8 |
2.6-4.1 |

7.0-12.9 km·h^{-1} |
10.9 ± 4.3 |
9.0-12.7 |
12.6 ± 5.2 |
10.4-14.9 |
14.0 ± 5.3 |
11.7-16.3 |

13.0-17.9 km·h^{-1} |
2.3 ± 1.0 |
1.8-2.7 |
6.1 ± 2.9 |
4.8-7.4 |
3.4 ± 1.9 |
2.6-4.2 |

>18 km·h^{-1} |
- |
- |
1.7 ± 1.5 |
1.1-2.4 |
1.0 ± 1.5 |
0.4-1.6 |