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Table 3 Blood lactate, FENO, and salivary biomarker results before and after the 30-minute time trial

From: Blueberry supplementation reduces the blood lactate response to running in normobaric hypoxia but has no effect on performance in recreational runners

Variable PLA BLU
Exhaled Nitric Oxide (ppb)
 Pre-exercise 18.5 ± 8.2 18.7 ± 6.1
 Post-exercise 17.2 ± 6.4 17.2 ± 4.2
Blood Lactate (mmoll− 1)
 Pre-TT 1.5 ± 0.4 1.5 ± 0.4
 5-minute post-TT 8.9 ± 2.7 7.2 ± 1.9*
Blood Lactate Recovery (% of 5-min post-TT)
 Recovery at 15 min post-TT 57.5 ± 16.7 56.7 ± 9.8
 Recovery at 30 min post-TT 37.2 ± 12.1 32.5 ± 5.1
Salivary Cortisol (µg/dL)
 Pre-TT 0.23 ± 0.11 0.16 ± 0.06
 Post-TT 0.53 ± 0.34 0.52 ± 0.27
Salivary Uric Acid (mg/dL)
 Pre-TT 3.11 ± 0.81 2.72 ± 0.89
 Post-TT 3.04 ± 1.26 2.83 ± 0.93
Salivary IL-6 (pg/mL)
 Pre-TT 8.9 ± 6.4 7.4 ± 4.2
 Post-TT 23.2 ± 9.2 24.3 ± 19.8
Salivary CRP (pg/dL)
 Pre-TT 6162 ± 5547 6504 ± 8389
 Post-TT 14,796 ± 20,641 10,771 ± 13,987
  1. * = Significantly different than PLA at same time point (p = 0.02)