Reduction of Skeletal Muscle Power in Adolescent Males Carrying H63D Mutation in the HFE Gene

Table 3

Cardiopulmonary exercise test parameters in control and HFE mutation group.

Variables	EG	CG	value
	Exercise time (s)	327 ± 34		345 ± 14	0.657
(beats⋅min^−1)	190 ± 4	191 ± 4	0.871
(W)	220.4 ± 16.8	254.1 ± 7.98	0.053
	11.7 ± 0.31	14.1 ± 0.68	0.006
(L⋅min^−1)	2.73 ± 0.14	3.08 ± 0.16	0.133
VT (%  )	74.1 ± 2.31	73.4 ± 1.31	0.793
(L⋅min^−1)	88.9 ± 4.34	112.6 ± 6.24	0.008
VE/	24.4 ± 1.15	23.8 ± 0.79	0.687
	1.24 ± 0.04	1.25 ± 0.02	0.756

Results are shown as means ± SEM. significant difference; EG, hemochromatosis group; CG, control group; , heart rate at peak exercise; , work rate at peak exercise; METs, metabolic equivalent; , oxygen uptake at peak exercise; VT, ventilatory threshold; , minute ventilation at peak exercise; relation between minute ventilation and carbon dioxide production; , respiratory exchange ratio.