High-CHO diet increases post-exercise oxygen consumption after a supramaximal exercise bout
Braz. j. med. biol. res
; 49(11): e5656, 2016. graf
Article
in En
| LILACS
| ID: lil-797891
Responsible library:
BR1.1
ABSTRACT
We investigated if carbohydrate (CHO) availability could affect the excess post-exercise oxygen consumption (EPOC) after a single supramaximal exercise bout. Five physically active men cycled at 115% of peak oxygen uptake (V̇O2 peak) until exhaustion with low or high pre-exercise CHO availability. The endogenous CHO stores were manipulated by performing a glycogen-depletion exercise protocol 48 h before the trial, followed by 48 h consuming either a low- (10% CHO) or a high-CHO (80% CHO) diet regime. Compared to the low-CHO diet, the high-CHO diet increased time to exhaustion (3.0±0.6 min vs 4.4±0.6, respectively, P=0.01) and the total O2 consumption during the exercise (6.9±0.9 L and 11.3±2.1, respectively, P=0.01). This was accompanied by a higher EPOC magnitude (4.6±1.8 L vs 6.2±2.8, respectively, P=0.03) and a greater total O2 consumption throughout the session (exercise+recovery 11.5±2.5 L vs 17.5±4.2, respectively, P=0.01). These results suggest that a single bout of supramaximal exercise performed with high CHO availability increases both exercise and post-exercise energy expenditure.
Key words
Full text:
1
Collection:
01-internacional
Database:
LILACS
Main subject:
Oxygen Consumption
/
Dietary Carbohydrates
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Exercise
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Energy Metabolism
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Physical Exertion
Limits:
Adult
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Humans
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Male
Language:
En
Journal:
Braz. j. med. biol. res
Journal subject:
BIOLOGIA
/
MEDICINA
Year:
2016
Document type:
Article
Affiliation country:
Country of publication: