Influence of Vitamin C Supplementation on Oxidative Stress and Neutrophil Inflammatory Response in Acute and Regular Exercise

Table 1

Serum oxidative stress markers and vitamin C status in experimental groups before vitamin C oral supplementation.

	Acute exercise; ( = 30)	Regular training; ( = 30)	P value
MDA (µmol/L)	3.04 ± 1.48	4.26 ± 0.97	0.001
Vitamin C (µmol/L)	55.4 ± 11.93	62.27 ± 9.68	0.017
Asc (µmol/L)	24.13 ± 8.80	21.23 ± 7.57	0.181
DHA (µmol/L)	31.60 ± 10.09	41.03 ± 8.76	<0.001
Ratio of DHA/Asc^‡	1.62 ± 0.90	2.16 ± 1.02	0.022
MPO (U/L)^‡	45.80 ± 26.89	68.83 ± 13.65	<0.001

Serum malondialdehyde (MDA), total vitamin C, ascorbic acid (Asc), dehydroascorbic acid (DHA), and myeloperoxidase activity (MPO) in acute exercise group were compared to values in regular training group before vitamin C oral supplementation. Differences between groups were tested by independent-samples -test and Mann-Whitney test (‡), respectively.