Effects of long duration exercise on cognitive function, blood glucose, and counterregulatory hormones in male cyclists.
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.
Grego
Fabien
F
E.A. 3162 "Laboratoire Ergonomie Sportive et Performance", Université de Toulon-Var, Avenue de l'Université, BP 132, 83957 La Garde Cedex, France.
Vallier
Jean-Marc
JM
Collardeau
Maya
M
Bermon
Stéphane
S
Ferrari
Patricia
P
Candito
Mirande
M
Bayer
Pascale
P
Magnié
Marie-Noëlle
MN
Brisswalter
Jeanick
J
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
D001786:Blood Glucose; D005230:Fatty Acids, Nonesterified; D006728:Hormones; D007328:Insulin; D005990:Glycerol; D006854:Hydrocortisone; D009638:Norepinephrine; D004837:Epinephrine