Comparison of the Effects of Continuous and Intermittent Exercise on Cerebral Oxygenation and Cognitive Function

2020 ◽  
pp. 209-214 ◽  
Author(s):  
Yuya Ichinose ◽  
Shinichiro Morishita ◽  
Rio Suzuki ◽  
Gaku Endo ◽  
Atsuhiro Tsubaki
Keyword(s):  
Cognitive Function ◽  
Cerebral Oxygenation ◽  
Intermittent Exercise

Relationship Between Acute Physical Fatigue and Cognitive Function During Orthostatic Challenge in Men and Women: A Neuroergonomics Investigation

2020 ◽  
pp. 001872082093679
Author(s):  
Ranjana K. Mehta ◽  
Joseph Nuamah
Keyword(s):  
Cognitive Function ◽  
Cerebral Oxygenation ◽  
Mental Arithmetic ◽  
Lower Body Negative Pressure ◽  
Health Concern ◽  
Cognitive Tasks ◽  
Physical Fatigue ◽  
Functional Near Infrared Spectroscopy ◽  
Orthostatic Challenge ◽  
Significant Difference

Background Postflight orthostatic challenge (OC), resulting from blood pooling in lower extremities, is a major health concern among astronauts that fly long-duration missions. Additionally, astronauts undergo physical demanding tasks resulting in acute fatigue, which can affect performance. However, the effects of concurrent OC and acute physical fatigue on performance have not been adequately investigated. Objective The purpose of this study was to determine the relationship between acute physical fatigue and cognitive function during OC. Methods Sixteen healthy participants performed the mental arithmetic task and psychomotor tracking tasks in the absence and presence of a prior 1-hour physically fatiguing exercise, on separate days under OC (induced via lower body negative pressure). We recorded task performances on the cognitive tests and prefrontal cortex oxygenation using functional near-infrared spectroscopy, along with physiological and subjective responses. Results The introduction of the cognitive tasks during OC increased cerebral oxygenation; however, oxygenation decreased significantly with the cognitive tasks under the acute fatigue conditions, particularly during the tracking task and in males. These differences were accompanied by comparable task performances. Discussion The findings suggest that mental arithmetic is a more effective countermeasure than psychomotor tracking under acute physical fatigue during OC. Whereas females did not show a significant difference in cerebral oxygenation due to task, males did, suggesting that it may be important to consider gender differences when developing countermeasures against OC.

Acute cocoa flavanol improves cerebral oxygenation without enhancing executive function at rest or after exercise

2016 ◽  
Vol 41 (12) ◽  
pp. 1225-1232 ◽  
Author(s):  
Lieselot Decroix ◽  
Cajsa Tonoli ◽  
Danusa D. Soares ◽  
Semah Tagougui ◽  
Elsa Heyman ◽  
...  
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Executive Function ◽  
Cognitive Function ◽  
Near Infrared ◽  
Acute Exercise ◽  
Cerebral Oxygenation ◽  
Cognitive Task ◽  
Double Blind ◽  
Exercise Induced

Acute exercise-induced improvements in cognitive function are accompanied by increased (cerebral) blood flow and increased brain-derived neurotrophic factor (BDNF) levels. Acute cocoa flavanol (CF) intake may improve cognitive function, cerebral blood flow (in humans), and BNDF levels (in animals). This study investigated (i) the effect of CF intake in combination with exercise on cognitive function and (ii) cerebral hemodynamics and BDNF in response to CF intake and exercise. Twelve healthy men participated in this randomized, double-blind, crossover study. Participants performed a cognitive task (CT) at 100 min after acute 903-mg CF or placebo (PL) intake, followed by a 30-min time-trial. Immediately after this exercise, the same CT was performed. Prefrontal near-infrared spectroscopy was applied during CT and exercise to measure changes in oxygenated (ΔHbO2), deoxygenated (ΔHHb), and total haemoglobin (ΔHbtot) and blood samples were drawn and analyzed for BDNF. Reaction time was faster postexercise, but was not influenced by CF. ΔHbO2 during the resting CT was increased by CF, compared with PL. ΔHbO2, ΔHHb, and ΔHbtot increased in response to exercise without any effect of CF. During the postexercise cognitive task, there were no hemodynamic differences between CF or PL. Serum BDNF was increased by exercise, but was not influenced by CF. In conclusion, at rest, CF intake increased cerebral oxygenation, but not BDNF concentrations, and no impact on executive function was detected. This beneficial effect of CF on cerebral oxygenation at rest was overruled by the strong exercise-induced increases in cerebral perfusion and oxygenation.

scholarly journals Combined effects of lactotripeptide and aerobic exercise on cognitive function and cerebral oxygenation in middle-aged and older adults

2019 ◽  
Vol 109 (2) ◽  
pp. 353-360 ◽  
Author(s):  
Ai Hamasaki ◽  
Nobuhiko Akazawa ◽  
Toru Yoshikawa ◽  
Kanae Myoenzono ◽  
Koichiro Tanahashi ◽  
...  
Keyword(s):  
Older Adults ◽  
Cognitive Function ◽  
Aerobic Exercise ◽  
Cerebral Oxygenation ◽  
Combined Effects ◽  
Middle Aged

scholarly journals Impact of Carbohydrate Ingestion on Cognitive Flexibility and Cerebral Oxygenation during High-Intensity Intermittent Exercise: A Comparison between Maple Products and Usual Carbohydrate Solutions

Nutrients ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 2019 ◽  
Author(s):  
Olivier Dupuy ◽  
Jonathan Tremblay
Keyword(s):  
Cognitive Flexibility ◽  
High Intensity ◽  
Repeated Measures ◽  
Cerebral Oxygenation ◽  
Intermittent Exercise ◽  
Cognitive Task ◽  
Slight Reduction ◽  
Carbohydrate Ingestion ◽  
Sports Drink ◽  
Glucose Ingestion

Background: The aim of this study was to compare the effects of carbohydrate (CHO) drinks (6% per volume) sweetened with maple (syrup or sap) to a commercial sports drink, glucose, and a control solution (water) on cognitive flexibility during high-intensity intermittent exercise. Methods: Eighty-five active men completed six 3-min bouts at 95% of their maximal aerobic power on a stationary bike, with 3 min of passive rest between efforts. Subjects were randomly allocated to an ingestion condition. Following each exercise bout, subjects ingested 166 mL of the experimental solution, drinking a total of 1 L of the same solution throughout the experimentation. Cognitive flexibility was measured using reaction time and accuracy on the Stroop task. The cognitive task was performed a total of 10 times, including 15 and 30 min post-exercise. Glycemia and cerebral oxygenation were also measured at each time point. Statistical analyses were performed using a two-way ANOVA (Condition × Time) with repeated measures. Results: The ingestion of maple products and the commercial sports drink led to a lesser increase in glycemia than glucose ingestion. CHO ingestion, when compared to water, induced a slight reduction in reaction times on the cognitive task, especially in the switching trials. CHO ingestion had no impact on cerebral oxygenation. Conclusions: This study shows that CHO ingestion, regardless of its type, tends to improve cognitive performance throughout exercise, especially during difficult cognitive tasks.

Does cerebral oxygenation affect cognitive function during exercise?

2011 ◽  
Vol 111 (9) ◽  
pp. 1973-1982 ◽  
Author(s):  
Soichi Ando ◽  
Masahiro Kokubu ◽  
Yosuke Yamada ◽  
Misaka Kimura
Keyword(s):  
Cognitive Function ◽  
Cerebral Oxygenation

Monitoring of cerebral oxygenation and cognitive function in elective carotid endarterectomy

2013 ◽  
Vol 30 ◽  
pp. 105-105
Author(s):  
V. Kuzkov ◽  
M. Obraztsov ◽  
P. Lenkin ◽  
A. Klyagin ◽  
M. Sokolova ◽  
...  
Keyword(s):  
Cognitive Function ◽  
Carotid Endarterectomy ◽  
Cerebral Oxygenation

scholarly journals POLYSULFIDE-ENRICHED GARLIC SUPPLEMENTATION IMPROVES COGNITIVE FUNCTION AND REDUCES HEART RATE DURING HIGH INTENSITY INTERMITTENT EXERCISE

2021 ◽  
Vol 17 (2) ◽  
pp. 225-244
Author(s):  
Ahmad Safwanudin Nordin ◽  
Alif Nazrin Jumat ◽  
Iqbal Khan Norhamazi ◽  
Syarifah Maimunah Mud Puad ◽  
Adam Linoby
Keyword(s):  
Heart Rate ◽  
Cognitive Function ◽  
High Intensity ◽  
Intermittent Exercise

Cerebral Oxygenation-Perfusion, Cardiac Hemodynamics and Cognitive Function During Exercise in Obese Persons

2015 ◽  
Vol 39 (2) ◽  
pp. 169
Author(s):  
L. Gabriel ◽  
A. Nigam ◽  
O. Dupuy ◽  
S. Fraser ◽  
L. Bherer ◽  
...  
Keyword(s):  
Cognitive Function ◽  
Cerebral Oxygenation ◽  
Cardiac Hemodynamics
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