Table 1.

Descriptive variables and caffeine intake

Variable	Mean	Range
Age (years)	23.2 ± 3.1	20–29
Height (cm)	177 ± 6	163–185
Body Mass (kg)	83 ± 7	67–92
Relative Bench Press Strength (1-RM/body mass)	1.4 ± 0.2	1.3–1.7
Relative Squat Strength (1-RM/body mass)	1.7 ± 0.2	1.4–2.2
Habitual Caffeine Intake (mg/day)	215 ± 72.7	100–300
Relative Caffeine Intake for Experiments (mg/kg)	3.6 ± 0.3	3.3–4.5

Data presented as mean ± SD

cm centimeters, kg kilograms, 1-RM/body mass one-repetition maximum in kg / body mass kg, mg milligrams