The purpose of this study is to determine the effects of four different pre-workout beverages as compared to placebo on muscular strength and endurance, perceived energy and cognitive performance in healthy adult males.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Masking
QUADRUPLE
Enrollment
24
Caffeine content: 200 mg
Caffeine content: 400 mg
Caffeine content: 175 mg
Miami Research Associates
Miami, Florida, United States
Change in Muscular Strength and Endurance compared to Placebo
Muscular Strength and Endurance will be measured by Bench Press and Leg Press 1-RM and repetitions to exhaustion.
Time frame: One day
Change from Baseline in Cognitive Performance
Cognitive performance will be measured by the automated trail maker tests A and B.
Time frame: Baseline to one-hour post dose and immediately post exercise
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Caffeine content: 200 mg
Caffeine content: 0 mg