The effect of exercise with low and high intensity on respiratory burst activities and neutrophils counts

Introduction: Although exercise his effects on human immune system, but its causes is not significantly cleared yet. This study is aimed to investigate the effect of exercise with moderate and high intensity, on changes of respiratory burst activities and neutrophil counts in college judoists. Methods: 10 male college judoists participated in this quazi-experimental study. Subjects run on a treadmill for 60 min at 45% (low-intensity exercise) in first week and in second week run with 75% (high-intensity exercise) heart care. Blood was drawn immediately before and after exercise. Paired t-test was used for data analysis by means of SPSS 11.5 and P<0.05 was the significance level. Results: The result showed that, increase in neutrophil count and neutrophil respiratory burst activities, after high-intensity exercise, is significant (P<0.05), whereas, this was not observed significantly after low intensity exercise. Conclusion: An increase in neutrophil count and respiratory burst activities were significantly associated with high intensity exercise, however, the effect of low intensity exercise was not significant.