title: Effects of long duration exercise on cognitive function, blood glucose, and counterregulatory hormones in male cyclists.
abstract: Electrocortical effects of long duration exercise on cognitive function were investigated by analyzing P300 amplitude and latency changes during a 3-h cycling exercise. P300 components were measured in 12 well-trained cyclists and blood glucose, cortisol, insulin, glycerol, and free fatty acids (FFAs) epinephrine and norepinephrine were analyzed. Results indicated that P300 components were affected by exercise with a temporary increase in amplitude between the 1st and the 2nd hour and an increase in latency after 2 h of exercise concomitant with some hormonal changes, including an increase in cortisol and epinephrine and a decrease in blood glucose. These findings suggest a combined effect of arousal and central fatigue on electrocortical indices of cognitive function during acute physical exercise.
authors.affiliation: E.A. 3162 "Laboratoire Ergonomie Sportive et Performance", Université de Toulon-Var, Avenue de l'Université, BP 132, 83957 La Garde Cedex, France.
authors.forename: Fabien
authors.initials: F
authors.lastname: Grego
authors.forename: Jean-Marc
authors.initials: JM
authors.lastname: Vallier
authors.forename: Maya
authors.initials: M
authors.lastname: Collardeau
authors.forename: Stéphane
authors.initials: S
authors.lastname: Bermon
authors.forename: Patricia
authors.initials: P
authors.lastname: Ferrari
authors.forename: Mirande
authors.initials: M
authors.lastname: Candito
authors.forename: Pascale
authors.initials: P
authors.lastname: Bayer
authors.forename: Marie-Noëlle
authors.initials: MN
authors.lastname: Magnié
authors.forename: Jeanick
authors.initials: J
authors.lastname: Brisswalter
mesh_terms: D000328:Adult; D001143:Arousal / Q000502:physiology; D001288:Attention / Q000502:physiology; D001642:Bicycling / Q000502:physiology* / Q000523:psychology*; D001786:Blood Glucose / Q000378:metabolism*; D003071:Cognition / Q000502:physiology*; D004569:Electroencephalography; D004837:Epinephrine / Q000097:blood; D018913:Event-Related Potentials, P300 / Q000502:physiology; D015444:Exercise / Q000502:physiology* / Q000523:psychology*; D005230:Fatty Acids, Nonesterified / Q000097:blood; D005990:Glycerol / Q000097:blood; D006728:Hormones / Q000097:blood*; D006801:Humans; D006854:Hydrocortisone / Q000097:blood; D007328:Insulin / Q000097:blood; D008297:Male; D009638:Norepinephrine / Q000097:blood; D010807:Physical Endurance / Q000502:physiology*; D013997:Time Factors
chemical_list: D001786:Blood Glucose; D005230:Fatty Acids, Nonesterified; D006728:Hormones; D007328:Insulin; D005990:Glycerol; D006854:Hydrocortisone; D009638:Norepinephrine; D004837:Epinephrine