Acute cocoa flavanol improves cerebral oxygenation without enhancing executive function at rest or after exercise
Decroix L, Tonoli C, Soares DD
Published in Applied Physiology, Nutrition, and Metabolism
Methodology
Randomised double-blind crossover trial in 12 healthy men given 903 mg cocoa flavanols or placebo before a cognitive task and a 30-minute time trial
Key Findings
Cocoa flavanols raised prefrontal oxygenation but did not improve executive-function task performance at rest or after exercise
Conclusions
Improved cerebral blood flow does not automatically translate into better executive performance
Limitations
Small all-male crossover sample; acute dosing only
Outcomes Measured
Acute cocoa flavanol improves cerebral oxygenation without enhancing executive function at rest or after exercise.
Study Details
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