Table 1 Participant and event characteristics of the multi-stage (MSUM) and 24-h continuous (24 h) ultramarathons

Participant characteristics

Total (n)

54

22

Male

33

16

Female

21

6

Age (year)

40 ± 8

40 ± 7

Height (m)

171 ± 15

177 ± 8

Body mass (kg)

70 ± 11

78 ± 11

Number of previous ultramarathon events

5 ± 7

16 ± 13

Ultramarathon characteristics

Distance (km)

total 225

range 122 to 208

Ambient temperature (°C)

range 32 to 40

range 0 to 20

Relative humidity (% range)

range 32 to 40

range 54 to 82

Altitude (m)

range 473 to 1443

range 39 to 645

Course description

Off-road trails and paths, steep and narrow mountain passes, and occasional road

Off-road terrains, including trails, paths, and grasslands