Research
Metabolic adaptation
Higher free fatty acid (FFA) concentrations during exercise do not significantly alter the relative contributions of carbohydrate or lipid oxidation to total energy expenditure after glucose feeding.
Practitioners can consider that elevated FFA levels during exercise do not significantly impact carbohydrate or lipid oxidation when glucose is ingested.
StrongRefutesmedium confidence
Similarly, higher FFA levels (1,032 +/- 62 vs. 568 +/- 46 mumol/l) did not alter the relative contributions of carbohydrate (62 +/- 4 vs. 69 +/- 2%) or lipid (36 +/- 4 vs. 29 +/- 2%) oxidation to the total energy expenditure after glucose feeding.
Why this rating
Based on study design from abstract.
Source
Effect of elevated FFA on carbohydrate and lipid oxidation during prolonged exercise in humans
Éric Ravussin et al. · Journal of Applied Physiology · 1986
other · n=11Cited 80×
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