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Table 2 Performance and physiological variables during the 30-minute time trial completed in normobaric hypoxia

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
30-minute time trial (km)
 0–15 min split 2.21 ± 0.31 2.22 ± 0.38
 15–30 min split 2.26 ± 0.32 2.24 ± 0.33
 Total distance 4.46 ± 0.62 4.47 ± 0.69
Heart Rate (HR)
 Average HR during TT 176.3 ± 13.7 175.3 ± 12.7
 Maximum HR during TT 187.3 ± 15.1 186.6 ± 13.4
%SaO2
 30-minute average during TT 89.3 ± 1.4 89.2 ± 2.1
Rating of Perceived Exertion (RPE)
 Maximum RPE during TT 18.1 ± 1.4 18.5 ± 1.2