Endothelial Nitric Oxide Synthase (NOS3) +894 G>T Associates with Physical Activity and Muscle Performance among Young Adults

Table 2

Time spent (𝑋±SEM, hr/wk) in vigorous and light intensity physical activity, and sitting among the total sample and by NOS3 +894 G>T and −786 T>C genotypes.

Physical activity phenotypes (hr/wk)	NOS3 +894 G>T			NOS3 −786 T>C
	(rs1799983)			(rs1800779)
	Total sample	GG/GT	TT	Total sample	TT/TC	CC
N	479	435	44	284	252	32
Vigorous intensity PA	6.8 ± 0.6	8.3 ± 0.4	5.4 ± 1.2**	7.5 ± 0.7	7.1 ± 0.4	7.9 ± 1.3
Light intensity PA	38.9 ± 1.2	35.8 ± 0.7	42.1 ± 2.4 ^#	38.8 ± 1.5	36.5 ± 0.8	41.1 ± 2.8
Sitting	41.7 ± 1.5	45.8 ± 0.9	37.6 ± 2.8 ^#	43.5 ± 1.7	46.3 ± 1.1	40.7 ± 3.2

Covariates included age and body mass index with gender and NOS3 genotype as between factors.
** P ≤ 0.05, ^#P ≤ 0.01,NOS3 +894 TT versus GG/GT (bolded).