Table 1 Subject characteristics in the ibuprofen (n = 29) and control (n = 25) groups.

Variable	Ibuprofen	Control
Age (years)	47.9 (7.4)	46.8 (10.3)
Height (m)	1.75 (0.08)	1.77 (0.09)
Pre‐race weight (kg)	71.0 (11.1)	71.2 (9.8)
90 km weight (kg)	71.2 (11.0)	71.0 (9.3)
160 km weight (kg)	71.2 (10.9)	71.1 (9.0)
Body fat (%)	17.8 (6.2)	16.1 (5.4)
Body mass index	22.8 (2.6)	22.4 (2.0)
Race time (h)	25.8 (3.3)	25.6 (3.9)
Years running	16.0 (8.8)	16.5 (7.3)
Ultramarathons raced	50.6 (67.1)	41.3 (27.9)
Run training (km/week)	87.1 (6.7)	76.3 (6.2)

Values are mean (SD).