Caffeine increases exercise intensity and energy expenditure but does not modify substrate oxidation during 1 h of self-paced cycling.
Carlos Ruiz-MorenoFrancisco J Amaro-GaheteJaime González-GarcíaVerónica Giráldez-CostasAsier MañasJorge Gutiérrez-HellínJuan Jose SalineroPublished in: European journal of nutrition (2022)
Acute caffeine ingestion before an exercise session with an individual's freedom to regulate intensity induces a higher self-selected exercise intensity and total work. The selection of a higher exercise intensity augments total energy expenditure but eliminates the effect of caffeine on substrate oxidation during exercise.