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

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

Variable	Baseline	Placebo	GlycoCarn^®	SUPP1	SUPP2	SUPP3
Bench press power (W)	1029 ± 51	1019 ± 47	1052 ± 50	1078 ± 53	1073 ± 49	1062 ± 52
Reps 1^st 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

Data are mean ± SEM.
No statistically significant difference noted between conditions for bench press power (p = 0.93), reps 1^st 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).
*Heart rate and perceived exertion recorded at the end of each of the 10 sets of bench press exercise. Mean data presented in table.

ISSN: 1550-2783