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Table 2 Effect of the water versus “placebo” on physical activity (PA) measures (*p < 0.05)

From: The effect of placebo on endurance capacity in normal weight children – a randomized trial

  Water n = 24 Placebo (“Energy”) n = 24 P value
Initial heart rate (bpm) 94.8 ± 7.4 95.0 ± 7.6 0.8
Ergometry phase 6.0 ± 1.3 7.6 ± 1.3* < 0.001
Running time (sec) 700.1 ± 155.2 893.3 ± 150.1* < 0.001
Maximal heart rate (bpm) 177.9 ± 13.6 189.8 ± 12.2* 0.003
Peak RPE 18.3 ± 1.4 16.2 ± 1.5* < 0.001
Average RPE 12.1 ± 1.4 10.7 ± 1.5* < 0.001
Recovery time (sec) 106.7 ± 18.6 96.7 ± 17.8* < 0.001