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Web End = Eur J Appl Physiol (2015) 115:21892197 DOI 10.1007/s00421-015-3199-4
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Web End = The relationship between exercise intensity, cerebral oxygenation and cognitive performance in young adults
Sad Mekari1,2 Sarah Fraser1,3 Laurent Bosquet1,2,4 Clment Bonnry1,5 Vronique Labelle1,3 Philippe Pouliot5,6 Frdric Lesage5,6 Louis Bherer1,7
Abstract
Purpose To assess the relationship between exercise intensity, cerebral HbO2 and cognitive performance (Executive and non-Executive) in young adults.
Methods We measured reaction time (RT) and accuracy, during a computerized Stroop task, in 19 young adults (7 males and 12 females). Their mean SD age, height,
body mass and body mass index (BMI) were 24 4 years,
1.67 0.07 m, 72 14 kg and 25 3 kg m2, respec
tively. Each subject performed the Stroop task at rest and during cycling at exercise of low intensity [40 % of peak power output (PPO)], moderate intensity (60 % of PPO) and high intensity (85 % of PPO). Cerebral oxygenation
Communicated by Toshio Moritani.
* Sad Mekari [email protected]
1 Centre de Recherche, Institut Universitaire de Griatrie de Montral, Laboratoire LESCA, 4565, Chemin Queen-Mary, Montral H3W 1W5, QC, Canada
2 Dpartement de Kinsiologie, Universit de Montral, CP 6128, succ. Centre-ville, Montral H3C 3J7, QC, Canada
3 Dpartement de Psychologie, Universit de Qubec Montreal, C.P. 8888 succ. Centre-ville, Montral H3C 3P8, QC, Canada
4 Facult des Sciences du Sport, Laboratoire MOVE (EA 6314), Universit de Poitiers, 8, alle Jean Monnet, 86000 Poitiers, France
5 Dpartement de Gnie Biomdical, cole Polytechnique, CP
6079, succ. Centre-ville, Montral H3C 3A7, QC, Canada
6 Centre de recherche, Institut de Cardiologie de Montral, 5000, rue Blanger, Montral H1T 1C8, QC, Canada
7 PERFORM Centre, Concordia University, 7200 Sherbrooke St. W., Montreal, QC H4B 1R6, Canada
Received: 11 September 2014 / Accepted: 30 May 2015 / Published online: 11 June 2015 Springer-Verlag Berlin Heidelberg 2015
was monitored during the resting and exercise conditions over the prefrontal cortex (PFC) using near-infrared spectroscopy (NIRS).
Results High-intensity exercise slowed RT in both the Naming (p = 0.04) and the Executive condition (p = 0.04).
The analysis also revealed that high-intensity exercise was...