From: The effects of a pre-workout supplement containing caffeine, creatine, and amino acids during three weeks of high-intensity exercise on aerobic and anaerobic performance
Age (yrs)
Height (cm)
Weight (kg)
Body Fat (%)
GT (n = 13)
21.3 ± 0.7
171.7 ± 1.7
66.9 ± 4.1
18.9 ± 2.1
PL (n = 11)
20.8 ± 0.3
172.7 ± 1.8
65.4 ± 2.4
19.1 ± 2.1
p = 0.488
p = 0.770
p = 0.756
p = 0.949