Figure 4From: Ingesting a pre-workout supplement containing caffeine, B-vitamins, amino acids, creatine, and beta-alanine before exercise delays fatigue while improving reaction time and muscular enduranceTotal leg press repetitions at 75% of one repetition maximum. † = Significant difference between SUP and PL, p < 0.05. PL = Placebo, SUP = Supplement (Assault™).Back to article page