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

Grego, Fabien; Vallier, Jean‐Marc; Collardeau, Maya; Bermon, Stéphane; Ferrari, P.; Candito, M.; Bayer, Pascale; Magnié, Marie-Noëlle; Brisswalter, Jeanick

doi:10.1016/j.neulet.2004.03.085

Cited by 109 publications

(105 citation statements)

References 15 publications

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“…In line with this interpretation, and given that task behavioural performance was not significantly different between sessions, one could argue that the reduced theta power to target 2 trials (the more salient stimuli) and the lower suppression of alpha and lower beta bands during the moderate-to-high intensity exercise session with respect to the light intensity session, was a sign of brain efficiency. Results from previous ERP studies during a single bout of exercise have also pointed to processing efficiency during moderate-to-high intensity exercise [17][41] [42]. At this point, it is important to note that both exercise sessions were matched in terms of dual-task demands.…”

Section: Discussionmentioning

confidence: 96%

“…The topography depicts t-test distribution across surface localization, showing the spatial characteristics of the higher power suppression of alpha in parieto-occipital electrodes during moderate-to-high exercise. (B) Parametric paired t-test maps comparison between moderate-to-high exercise and light exercise in lower beta frequency band [14][15][16][17][18][19][20] to standard trials. Right panel shows lower beta power across time at the parieto-occipital cluster (8 electrodes) in standard trials.…”

Section: Cc-by-nc-nd 40 International Licensementioning

confidence: 99%

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Tonic and transient oscillatory brain activity during acute exercise

Ciria

Luque‐Casado

Sanabria

et al. 2017

Preprint

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The physiological changes that occur in the main body systems and organs during physical exercise are well described in the literature. Despite the key role of brain in processing afferent and efferent information from organ systems to coordinate and optimize their functioning, little is known about how the brain works during exercise. The present study investigated tonic and transient oscillatory brain activity during a single bout of aerobic exercise. Twenty young males (19-32 years old) were recruited for two experimental sessions on separate days. Electroencephalographic (EEG) activity was recorded during a session of cycling at 80% (moderate-to-high intensity) of VO 2max (maximum aerobic capacity) while performing an oddball task where participants had to detect infrequent targets presented among frequent non-targets. This was compared to a (baseline) light intensity session (30% VO 2max ). The light intensity session was included to control for any potential effect of dual-tasking (i.e., pedaling and performing the oddball task). A warm-up and cool down periods were completed before and after exercise, respectively. A cluster-based nonparametric permutations test showed an increase in power across the entire frequency spectrum during the moderate-to-high intensity exercise, with respect to light intensity. Further, we found that the more salient target lead to lower increase in (stimulus-evoked) theta power in the 80% VO 2max with respect to the light intensity condition. On the contrary, higher decrease alpha and lower beta power was found for standard trials in the moderate-to-high exercise condition than in the light exercise condition. The present study unveils, for the first time, a complex brain activity pattern during acute exercise (at 80% of maximum aerobic capacity). These findings might help to elucidate the nature of changes that occur in the brain during physical exertion.

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Section: Discussionmentioning

confidence: 96%

Section: Cc-by-nc-nd 40 International Licensementioning

confidence: 99%

Tonic and transient oscillatory brain activity during acute exercise

Ciria

Luque‐Casado

Sanabria

et al. 2017

Preprint

View full text Add to dashboard Cite

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“…The participants ran for 5 min at a workload corresponding to 40% V ・ O2max as a warm-up, followed by 65 mins of running at 75% V ・ O2max on a treadmill, in a temperaturecontrolled room (mean temperature, 21°C). The cognitive function test was administered before (pre-exercise) and immediately after (post-exercise: within 2 mins after) the exercise session, similar to previous studies 10,19,27) . Immediately before each cognitive function test, subjective perceptions of fatigue and arousal were assessed and a blood sample was taken.…”

Section: Methodsmentioning

confidence: 99%

“…Executive function can be affected by acute exercise, which induces changes in modulators of cognitive function such as arousal and the levels of some brain neurotransmitters that are influenced by stress hormones including catecholamines and glucocorticoids 5,6) . When exercise is continued, the arousal level changes and the levels of stress hormones increase, which presumably deteriorate the processing of executive function [7][8][9][10][11] . Such exercise-induced changes in executive function would affect the control of action in dynamic situations that require a sustained moderate-to high-intensity exercise, such as sports activities.…”

Section: Introductionmentioning

confidence: 99%

“…Although the sample size may not have been large enough to detect a significant correlation, it appeared to be large enough to detect changes in the reaction time, as a significant increase was observed after exercise in the incongruent task. It should also be noted that although we adopted a cognitive function test in which the response accuracy was controlled to exclude the effect of a speed-accuracy tradeoff, there are other methods to exclude the effect of the tradeoff, by using physiological indices such as electroencephalogram measurements 10,20,40) . Further studies are needed to examine whether an exercise-induced decline in executive function could also be detected when such physiological indices are used as alternative methods.…”

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confidence: 99%

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Effect of sustained high-intensity exercise on executive function

Konishi

Kimura

Yuhaku

et al. 2017

JPFSM

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Exercise-induced changes in executive function affect the control of action in a dynamic environment. This study aimed to examine the effect of sustained high-intensity exercise on executive function. Nine healthy male and female participants (age, 21-28 years) completed an exercise session with 65-min treadmill running at 75% V ・ O 2 max. Executive function was assessed before and after exercise with the Stroop Color and Word Test that included congruent and incongruent conditions. The reaction time and response accuracy of the test were measured, and the task difficulty was controlled by adjusting the stimulus duration so that each participant could maintain at least 80% response accuracy to exclude the effect of a speed-accuracy tradeoff. The levels of plasma norepinephrine and adrenocorticotropic hormone were examined. A significant interaction with the reaction time was found (condition × time, P = 0.024), in which the reaction time significantly increased after exercise only in the incongruent condition (P = 0.019). The response accuracy was not significantly different between before and after exercise in both conditions, which indicated that the response accuracy was controlled as intended. The levels of plasma norepinephrine and adrenocorticotropic hormone were significantly increased after exercise (P < 0.05). These results demonstrated that the reaction time in the incongruent condition increased after sustained high-intensity exercise with a cognitive function test with the response accuracy controlled, indicating a decline in executive function. Increased levels of plasma norepinephrine and adrenocorticotropic hormone may contribute, at least in part, to such decline in executive function.

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