Premium
Effect of caffeine intake on EPOC after resistance training
Author(s) -
Astorino Todd Anthony,
Martin Brian J,
Volland Lena,
Rohmann Riana L,
Wong Keau
Publication year - 2008
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.22.1_supplement.685.2
Subject(s) - bench press , medicine , placebo , crossover study , caffeine , resistance training , leg press , vo2 max , zoology , strength training , physical therapy , heart rate , blood pressure , alternative medicine , pathology , biology
The purpose of the study was to examine the effect of caffeine (CAF) intake on excess post‐exercise oxygen consumption (EPOC) in response to resistance training. Five strength‐trained men (mean ± SE age and mass = 21.1 ± 2.2 yr and 87.8 ± 15.4 kg) who were regular CAF consumers took part in the study. A randomized, double‐blind, crossover design was used. One week apart, CAF (6 mg/kg body weight) or placebo housed in identical capsules was ingested with water 1 h pre‐exercise. Pre‐exercise, subjects sat in a chair for 30 min to assess oxygen uptake (VO 2 ). Subjects completed four sets of bench press, leg press, lat row, and shoulder press to fatigue at 75 – 80 % one‐repetition maximum. After exercise, EPOC was assessed for 75 min. VO 2 was increased (p < 0.05) from pre‐exercise (0.30 ± 0.02 L/min) to 5 min after exercise (0.53 ± 0.04 L/min), and EPOC remained elevated (p < 0.05) after 75 min of rest (0.36 ± 0.03 L/min). CAF increased calorie expenditure before and after exercise, but it failed to reach significance (p > 0.05). There was no effect (p > 0.05) of CAF on VO 2 , VCO 2 , or RER. Compared to placebo, data suggest no effect of a 6 mg/kg dose of CAF on resting VO 2 or EPOC. A larger sample size may be needed to show a significant effect of acute CAF intake on EPOC after rigorous resistance training. This project was funded by a University Professional Development/Research, Scholarship, and Creative Activity Grant .