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Visa fullständig version : Fettoxidation över dygnet m många korta "träningspass" jämfört m kontinuerlig träning


King Grub
2013-02-05, 09:58
PURPOSE:

We examined whether continuous and intermittent physical activity (PA) differentially influence fat utilization.

METHODS:

This was a randomized crossover study. Nine healthy young male participants performed two, 39-h (2 nights, 3 days) PA sessions (continuous and intermittent exercise) in a respiratory chamber to measure energy expenditure and substrate oxidation. Participants used a stationary cycling ergometer continuously for 40 and then 45 minutes in the continuous PA trial, and for 5 minutes every 30 minutes 17 times in the intermittent PA trial. They consumed high-carbohydrate meals corresponding to predicted daily total energy expenditure for 3 days before entering the respiratory chamber, and 4 high-fat meals corresponding to predicted total energy expenditure in the chamber.

RESULTS:

23-h respiratory exchange ratio (RER) adjusted for sleeping RER on the preceding day was significantly lower in the intermittent PA trial than in the continuous PA trial (P = 0.021). 23-h RER adjusted for sleeping RER on the preceding day was correlated with accumulated consecutive minutes of metabolic equivalents (METs) ≤ 1.5 (3 minutes or more; r = 0.477, 5 minutes or more; r = 0.510, 10 minutes or more; r = 0.605).

CONCLUSIONS:

The intermittent PA trial induced greater fat utilization than the continuous PA trial. The present study, therefore, suggests that intermittent PA has a beneficial effect on 24-h fat oxidation after consumption of a high-fat meal, which may help prevent weight gain over time.

Med Sci Sports Exerc. 2013 Jan 30. Effects of Intermittent Physical Activity on Fat Utilization over a Whole Day.

maqan
2013-02-05, 19:23
which may help prevent weight gain over time.

Segt att behöva hoppa på cykeln stup i kvarten dock :D.