Title :

Acute cocoa flavanol improves cerebral oxygenation without enhancing executive function at rest or after exercise

Author(s) :

Decroix, Lieselot [Auteur]
Tonoli, Cajsa [Auteur]
Soares, Danusa Dias [Auteur]
Tagougui, Sémah [Auteur]
Unité de Recherche Pluridisciplinaire Sport, Santé, Société (URePSSS) - ULR 7369 - ULR 4488 [URePSSS]
Heyman, Elsa [Auteur]
Unité de Recherche Pluridisciplinaire Sport, Santé, Société (URePSSS) - ULR 7369 - ULR 4488 [URePSSS]
Meeusen, Romain R. [Auteur]

Journal title :

Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme

Abbreviated title :

Appl. Physiol. Nutr. Metab.

Volume number :

41

Pages :

1225-1232

Publication date :

2016-12-01

ISSN :

1715-5312

English keyword(s) :

NIRS
exercise
cognition
cerebral hemodynamics
BDNF
cocoa flavanol

HAL domain(s) :

Sciences du Vivant [q-bio]

English abstract : [en]

Acute exercise-induced improvements in cognitive function are accompanied by increased (cerebral) blood flow and increased brain-derived neurotrophic factor (BDNF) levels. Acute cocoa flavanol (CF) intake may improve ...
Show more >Acute exercise-induced improvements in cognitive function are accompanied by increased (cerebral) blood flow and increased brain-derived neurotrophic factor (BDNF) levels. Acute cocoa flavanol (CF) intake may improve cognitive function, cerebral blood flow (in humans), and BNDF levels (in animals). This study investigated (i) the effect of CF intake in combination with exercise on cognitive function and (ii) cerebral hemodynamics and BDNF in response to CF intake and exercise. Twelve healthy men participated in this randomized, double-blind, crossover study. Participants performed a cognitive task (CT) at 100 min after acute 903-mg CF or placebo (PL) intake, followed by a 30-min time-trial. Immediately after this exercise, the same CT was performed. Prefrontal near-infrared spectroscopy was applied during CT and exercise to measure changes in oxygenated (ΔHbO ), deoxygenated (ΔHHb), and total haemoglobin (ΔHb ) and blood samples were drawn and analyzed for BDNF. Reaction time was faster postexercise, but was not influenced by CF. ΔHbO during the resting CT was increased by CF, compared with PL. ΔHbO , ΔHHb, and ΔHb increased in response to exercise without any effect of CF. During the postexercise cognitive task, there were no hemodynamic differences between CF or PL. Serum BDNF was increased by exercise, but was not influenced by CF. In conclusion, at rest, CF intake increased cerebral oxygenation, but not BDNF concentrations, and no impact on executive function was detected. This beneficial effect of CF on cerebral oxygenation at rest was overruled by the strong exercise-induced increases in cerebral perfusion and oxygenation.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Univ. Littoral Côte d’Opale
Univ. Artois
Université de Lille

Collections :

• Unité de Recherche Pluridisciplinaire Sport, Santé, Société (URePSSS) - ULR 7369

Research team(s) :

Activité Physique, Muscle, Santé (APMS)

Submission date :

2019-09-24T07:28:58Z
2021-05-26T13:17:52Z
2021-05-27T12:09:24Z