Akademik Veri Yönetim Sistemi
Turkish Journal of Sport and Exercise, cilt.23, sa.1, ss.86-101, 2021 (Hakemli Dergi)
Caffeine is an ergogenic supplement that has been attracting attention in the sports community for many years. It has been
proven in many studies that coffee consumption has a positive effect on exercise performance. This study was conducted to (I)
examine the effects of caffeine on exercise performance and different performance areas, (II) to provide comprehensive
recommendations on the use of caffeine in sports and exercise, and (III) to identify existing gaps in the literature and to make
key recommendations for future research. This current review article provides an analytical view of studies involving the use
of caffeine for the physical, physiological, and cognitive performance of individuals, and discusses factors that may affect the
ergogenic effects of caffeine on the different proposed activities. Within the scope of this review, previously published studies
were searched using comprehensive keywords related to "caffeine" through "ELSEVIER Science Direct (SciVerse), Taylor &
Francis, EBSCOhost-Academic Search Complete, PubMed and SpringerLink, Google Scholar" databases until January 2021. As
a result, it has been reported that caffeine increases endurance performance by 2-4% and improves short-term and intense
intensity exercise performance in highly trained individuals. The improving effect of caffeine on cognitive performance
supports the use of caffeine as an ergogenic supplement. Caffeine has been shown to increase sympathetic nervous system
activity and release fatty acids from adipose and / or intramuscular stores. This mechanism, which occurs indirectly through
increased adrenaline levels, has the potential to increase the availability of fatty acids for oxidation and the resting metabolic
rate. At the same time, it has been observed that caffeine does not cause dehydration and is a reliable ergogenic supplement in
this respect. The ergogenic effect of caffeine should be clarified by focusing on questions such as at what time of the day
caffeine consumption affects caffeine ergogenicity, the effect of age on caffeine ergogenicity, caffeine intake according to
athlete's training level, and the importance of genotype in terms of caffeine consumption.
Keywords: Caffeine, Exercise, Athletic performance