Effects of long duration exercise on cognitive function, blood glucose, and counterregulatory hormones in male cyclists

被引:89
作者
Grego, F
Vallier, JM
Collardeau, M
Bermon, S
Ferrari, P
Candito, M
Bayer, P
Magnié, MN
Brisswalter, J
机构
[1] Univ Toulon & Var, Lab Ergon Sport & Performance, F-83957 La Garde, France
[2] Univ Nice, Fac Med, Physiol Lab, F-06107 Nice 02, France
[3] Cent Hop Nice, Biochim Lab, F-06000 Nice, France
关键词
electroencephalography; auditory event-related potentials; cognition; insulin; cortisol; catecholamines; glucose; lactate; glycerol; free fatty acids;
D O I
10.1016/j.neulet.2004.03.085
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
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. (C) 2004 Elsevier Ireland Ltd. All rights reserved.
引用
收藏
页码:76 / 80
页数:5
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