This study investigated the effects of different caffeine delivery forms on aerobic and anaerobic exercise performance in healthy adults. Participants completed experimental trials involving caffeine capsule ingestion, caffeine gum chewing, and caffeine mouth rinse conditions. Aerobic performance was assessed using maximal oxygen uptake (VO2max), and anaerobic performance was evaluated using the Wingate anaerobic test. The study used a randomized crossover design where each participant completed all experimental conditions.
Caffeine is widely used as an ergogenic aid to enhance athletic performance. Different forms of caffeine administration such as capsules, chewing gum, and mouth rinses may produce different physiological responses due to differences in absorption rate and oral receptor stimulation. However, limited research has directly compared these delivery methods within the same participants. This randomized crossover study aimed to compare the effects of caffeine capsule ingestion, caffeine gum chewing, and caffeine mouth rinse on aerobic and anaerobic exercise performance. Fourteen healthy adults participated in the study and completed experimental trials under each caffeine condition. Aerobic performance was measured using maximal oxygen uptake (VO2max), while anaerobic performance was assessed using the Wingate anaerobic test. The results of this study may help clarify the effectiveness of different caffeine delivery forms for improving exercise performance.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
NONE
Enrollment
14
This study evaluates the acute effects of three distinct caffeine delivery methods compared to a placebo, using a standardized total dose of 300 mg of caffeine across all active interventions. The study is a randomized, single-blind, counterbalanced crossover trial involving 14 recreational male athletes. The interventions are distinguished by their specific absorption kinetics and ecologically valid administration timings
Gaziantep University, Faculty of Sport Science (Athletic Performance Laboratory)
Şehitkamil, Gaziantep, Turkey (Türkiye)
Aerobic Capacity (VO2max)
Description: Estimated maximal oxygen uptake calculated via the 20-meter shuttle run test (Beep Test).Metric: Milliliters per kilogram per minute (ml/kg/min)
Time frame: Measured after each 48-hour washout period following the specific caffeine or placebo intervention
Aerobic Capacity (VO2max)
Estimated maximal oxygen uptake calculated via the 20-meter shuttle run test (Beep Test).
Time frame: Measured after each 48-hour washout period following the specific caffeine or placebo intervention
Anaerobic Average Power
The mean power output maintained over the duration of a 30-second Wingate Anaerobic Test
Time frame: Measured after each 48-hour washout period following the specific caffeine or placebo intervention.
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