Table 1. Characteristics of the studied population.

Data are expressed as mean ± standard deviation (SD) excepting time of race which is expressed as mean ± SD (minimal–maximal values).

Parameter	Value
Age (years)	43 ± 7
Body weight (kg)	74 ± 8
Height (cm)	176 ± 7
Weekly covered distance (km)	46 ± 18
Weekly training duration (hours)	5 ± 3
Seniority in running practice (years)	6 ± 4
Number of trails per year	5 ± 3
Time of race (hours)	11.2 ± 0.9 (9.1–12.4)