Abstract

We investigated the effect of caffeine ingestion combined with a 2-wk sprint interval training (SIT) on training-induced reductions in body adiposity. Twenty physically-active men ingested either 5 mg/kg of cellulose as a placebo (PLA, n=10) or 5 mg/kg of caffeine (CAF, n=10) 60 min before each SIT session (13×30 s sprint/15 s of rest). Body mass and skinfold thickness were measured pre- and post-training. Energy expenditure was measured at rest, during exercise, and 45 min after exercise in the first SIT session. Body fat was similar between PLA and CAF groups at pre-training (P>0.05). However, there was a significant decrease in body fat after training in the CAF group (−5.9±4.2%, P<0.05) but not in PLA (1.5±8.0%, P>0.05). There was no difference in energy expenditure at rest and during exercise between PLA and CAF groups (P>0.05), but the post-exercise energy expenditure was 18.3±21.4% greater in the CAF than in the PLA group (P<0.05). In conclusion, caffeine ingestion before SIT sessions induced a body fat loss that may be associated with higher post-exercise energy expenditure.

RAS ID

31322

Document Type

Journal Article

Date of Publication

1-1-2019

Funding Information

Funding information available at: https://doi.org/10.1590/1414-431x20199169

School

School of Medical and Health Sciences

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

Publisher

Associacao Brasileira de Divulgacao Cientifica

Comments

Ferreira, G. A., Felippe, L. C., Bertuzzi, R., Bishop, D. J., Ramos, I. S., De-Oliveira, F. R., & Lima-Silva, A. E. (2019). Does caffeine ingestion before a short-term sprint interval training promote body fat loss?. Brazilian Journal of Medical and Biological Research, 52(12), Article e9169. Available here

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Link to publisher version (DOI)

10.1590/1414-431x20199169