Table 2. Lap characteristics and exercise intensity of the ultramarathon

Total race
1st lap
2nd lap
Race time
20h 51min
9h 40min
11h 11min
Average speed (km.h-1)
22.0
23.8
19.7
HRmean (b.min-1)
131
138
124
%HRmax
0.71
0.75
0.67
HRlte (<119 b.min-1)
30.1 (6h 17min)
24.8 (2h 24min)
34.7 (3h 53min)
HRea (119-145 b.min-1)
38.6 (8h 3min)
23.5 (2h 16min)
51.7 (5h 47min)
HRia (145-171 b.min-1)
30.9 (6h 26min)
50.8 (4h 55min)
13.6 (1h 31min)
HRhi (>171 b.min-1)
0.4 (5min)
0.9 (5min)
0.0