Does caffeine ingestion before a short-term sprint interval training promote body fat loss?
Braz. j. med. biol. res
;
52(12): e9169, 2019. tab, graf
Article
in English
| LILACS
| ID: biblio-1055475
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.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Oxygen Consumption
/
Caffeine
/
Adipose Tissue
/
Energy Metabolism
/
High-Intensity Interval Training
Type of study:
Controlled clinical trial
Limits:
Adult
/
Humans
/
Male
Language:
English
Journal:
Braz. j. med. biol. res
Journal subject:
Biology
/
Medicine
Year:
2019
Type:
Article
Affiliation country:
Australia
/
Brazil
Institution/Affiliation country:
Institute for Health and Sport, Victoria University/AU
/
Universidade Federal de Lavras/BR
/
Universidade Federal de Pernambuco/BR
/
Universidade de São Paulo/BR
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