Background and aim: Naturally, many agents can improve or weaken this vital system of body. The current research tries to determine reaction of immune system in body to using vitamin C followed by an aerobic physical activity.
Methods: In the present experimental research, 24 subjects were selected by random sampling, as a sample and were randomly divided into two 12-subjects groups, first group (vitamin C) and the second group (placebo). In the pre-test, the baseline measurements were taken from both groups. Then, 500 mg of vitamin C was given in 5 days once a day in an experimental group. After five days, blood samples were taken from both groups. Finally, on the 6th day immediately blood sampling was performed after aerobic physical exercise (Bruce test). And then was taken to the lab by immunological examination after analyzing the data, the required information was collected.
Results: The results showed that after aerobic activity level of IgG and IgA were significantly higher (P <0.05), while plasma cortisol levels were significantly lower (P <0.05) in the vitamin C group compared to the placebo group.
Conclusion: The consumption of vitamin C following aerobic exercise has an effect on the levels of A and G immunoglobulin’s and serum cortisol levels, and the repressive effects of the exercise-induced immune system are somewhat reduced.