Does caffeine ingestion before a short-term sprint interval training promote body fat loss?

Autor: G.A. Ferreira, L.C. Felippe, R. Bertuzzi, D.J. Bishop, I.S. Ramos, F.R. De-Oliveira, A.E. Lima-Silva
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Brazilian Journal of Medical and Biological Research, Vol 52, Iss 12 (2019)
Druh dokumentu: article
ISSN: 1414-431X
1414-431x
DOI: 10.1590/1414-431x20199169
Popis: 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%, P0.05). 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
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