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Table 3 Exercise performance data of 19 resistance trained men receiving placebo or supplement in a cross-over design.

From: Comparison of pre-workout nitric oxide stimulating dietary supplements on skeletal muscle oxygen saturation, blood nitrate/nitrite, lipid peroxidation, and upper body exercise performance in resistance trained men

Variable Baseline Placebo GlycoCarn® SUPP1 SUPP2 SUPP3
Bench press power (W) 1029 ± 51 1019 ± 47 1052 ± 50 1078 ± 53 1073 ± 49 1062 ± 52
Reps 1st set 25 ± 1 25 ± 1 26 ± 1 26 ± 1 26 ± 1 26 ± 1
Total reps 101 ± 6 105 ± 7 109 ± 6 104 ± 6 106 ± 5 104 ± 6
Mean reps 10.1 ± 0.6 10.5 ± 0.7 10.9 ± 0.6 10.4 ± 0.6 10.6 ± 0.5 10.4 ± 0.6
Total volume load (kg) 7221 ± 550 7495 ± 545 7746 ± 528 7432 ± 559 7558 ± 513 7407 ± 499
Mean volume load (kg) 722.1 ± 55.0 749.5 ± 54.5 774.6 ± 52.8 743.2 ± 55.9 755.8 ± 51.3 740.7 ± 49.9
Heart rate* (bpm) 131 ± 3 135 ± 4 134 ± 4 138 ± 3 142 ± 4 137 ± 4
Perceived exertion* (6-20) 14.7 ± 0.6 14.8 ± 0.4 14.7 ± 0.4 14.8 ± 0.4 14.6 ± 0.4 14.8 ± 0.4
  1. Data are mean ± SEM.
  2. No statistically significant difference noted between conditions for bench press power (p = 0.93), reps 1st set (p = 0.99), total reps (p = 0.98), mean reps (p = 0.98), total volume load (p = 0.99), mean volume load (p = 0.99), heart rate (p = 0.56), or perceived exertion (p = 0.98).
  3. *Heart rate and perceived exertion recorded at the end of each of the 10 sets of bench press exercise. Mean data presented in table.