. 2018 Feb 27;10:106–112. doi: 10.1016/j.pmedr.2018.02.010

Table 2.

Baseline fitness measures.

Variable	Non-FF (N = 25)	FF (N = 27)
VO_2max (ml/kg/min)	37.1 ± 9.0	35.7 ± 4.3
Balance, min	1.93 ± 1.6	2.47 ± 1.9
Muscular Endurance, min	2.12 ± 1.1	3.68 ± 1.9^β
Stair-Climbing test, # steps	297.7 ± 59.9	319.3 ± 45.2
Fitness Index	0.83 ± 0.2	1.21 ± 0.4^β

Data are presented as mean ± SD. Non-FF, Non-firefighter; FF, Firefighter; VO_2max, volume of oxygen; Balance, sum of right and left leg balance; Muscular Endurance, sum of core strength measured plank pose and leg strength measured by wall sit; Stair-Climbing, count of steps climbed in 2 min; Fitness Index, composite fitness calculation (see Methods).

^β

p < 0.05 between groups.