Skip to main content

Advertisement

Table 1 Choice Reaction Time Results

From: 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 endurance

Variable Treatment T1 T2 T3 T4 Mean
Single Step Visual (CRV) PL 0.97 ± 0.14 0.98 ± 0.25 0.94 ± 0.11 0.92 ± 0.15 0.95 ± 0.17
  SUP 0.98 ± 0.23 0.93 ± 0.14 0.91 ± 0.16 0.88 ± 0.12 0.93 ± 0.16
Single Step Audio (CRA) PL 0.98 ± 0.09 0.96 ± 0.13 0.96 ± 0.11 0.95 ± 0.12 0.97 ± 0.11
  SUP 0.96 ± 0.10 0.91 ± 0.09 0.89 ± 0.07 0.92 ± 0.11 0.92 ± 0.10
Stationary 15 s (CRS15) PL 0.54 ± 0.04 0.54 ± 0.07 0.56 ± 0.09 0.55 ± 0.08 0.55 ± 0.07
  SUP 0.56 ± 0.06 0.51 ± 0.05 0.51 ± 0.06 0.51 ± 0.06 0.52 ± 0.06
Lateral 15 s (CRL15) PL 0.91 ± 0.11 0.91 ± 0.15 0.95 ± 0.11 0.89 ± 0.13 0.91 ± 0.13
  SUP 0.93 ± 0.11 0.86 ± 0.07 0.88 ± 0.11 0.89 ± 0.12 0.89 ± 0.10
Multi-directional 15 s (CRM15) PL 1.08 ± 0.10 1.13 ± 0.17 1.19 ± 0.14 1.10 ± 0.12 1.13 ± 0.14
  SUP 1.07 ± 0.09 1.09 ± 0.10 1.03 ± 0.11 1.09 ± 0.16 1.07 ± 0.12
Stationary 30s (CRS30) PL 0.56 ± 0.07 0.55 ± 0.09 0.54 ± 0.09 0.54 ± 0.07 0.55 ± 0.08
  SUP 0.55 ± 0.05 0.52 ± 0.07 0.52 ± 0.06 0.52 ± 0.07 0.53 ± 0.06
Lateral 30s (CRL30) PL 0.89 ± 0.10 0.93 ± 0.13 0.92 ± 0.10 0.93 ± 0.15 0.92 ± 0.12
  SUP 0.91 ± 0.10 0.91 ± 0.11 0.87 ± 0.12 0.90 ± 0.10 0.90 ± 0.11
Multi-directional 30s (CRM30) PL 1.15 ± 0.13 1.16 ± 0.12 1.11 ± 0.15 1.15 ± 0.12 1.14 ± 0.13
  SUP 1.11 ± 0.10 1.10 ± 0.12 1.06 ± 0.12 1.12 ± 0.12 1.10 ± 0.11
Stick Hits (2 min) PL 63 ± 11 67 ± 10 63 ± 11 61 ± 12 63 ± 11
  SUP 66 ± 7 70 ± 10 65 ± 11 65 ± 12 66 ± 10
  1. PL placebo; SUP supplement; T time point; † = significant main effect for supplement, p < 0.05; ‡ = significant interaction between time and supplement, p < 0.05; All data are reported as mean ± standard deviation.