Effect Of Blueberry Ingestion On Natural Killer Cell Counts, Oxidative Stress, And Inflammation Prior To And After 2.5 H Of Running
Notes for this study:
|Number of Subjects
Oral ingestion of 250g blueberries for 4 weeks followed by a single dose of 375g an hour prior to exercise (2.5 hours running at 72% VO2 max) in well trained runners is able to increase natural killer cell count by 76-122% and serum IL-10 concentrations, but other immune cells were unaffected.
Glycogen oxidation rates and cortisol were not significantly affected, and the upregulation of nF-kB in muscle was not affected. Interestingly, the antioxidant potential of the blood after exercise was not significantly different between groups and performance was unaltered.
While the urinary biomarker for RNA damage was decreased, the urinary biomarker for DNA damage was unaffected.