Relationship between the level of mental fatigue induced by a prolonged cognitive task and the degree of balance disturbance

2021 ◽  
Author(s):  
Frédéric Noé ◽  
Betty Hachard ◽  
Hadrien Ceyte ◽  
Noëlle Bru ◽  
Thierry Paillard
Keyword(s):  
Cognitive Task ◽  
Mental Fatigue

scholarly journals Effects Of Mental Fatigue Induced By A Continuous Cognitive Task On Attention Abilities Of Athletes

2018 ◽  
Vol 50 (5S) ◽  
pp. 88
Author(s):  
Jianxiu Liu ◽  
Ruidong Liu ◽  
Chunmei Cao ◽  
Xindong Ma
Keyword(s):  
Cognitive Task ◽  
Mental Fatigue

scholarly journals Prior Acute Mental Exertion in Exercise and Sport

2016 ◽  
Vol 12 (1) ◽  
pp. 94-107 ◽  
Author(s):  
Fernando Lopes e Silva-Júnior ◽  
Patrick Emanuel ◽  
Jordan Sousa ◽  
Matheus Silva ◽  
Silmar Teixeira ◽  
...  
Keyword(s):  
Physical Performance ◽  
Cognitive Task ◽  
Cognitive Activity ◽  
Mental Fatigue ◽  
Construction Workers ◽  
Psychological Responses ◽  
Psychophysiological Responses ◽  
Psychophysiological State ◽  
And Performance ◽  
Mental Exertion

Introduction:Mental exertion is a psychophysiological state caused by sustained and prolonged cognitive activity. The understanding of the possible effects of acute mental exertion on physical performance, and their physiological and psychological responses are of great importance for the performance of different occupations, such as military, construction workers, athletes (professional or recreational) or simply practicing regular exercise, since these occupations often combine physical and mental tasks while performing their activities. However, the effects of implementation of a cognitive task on responses to aerobic exercise and sports are poorly understood. Our narrative review aims to provide information on the current research related to the effects of prior acute mental fatigue on physical performance and their physiological and psychological responses associated with exercise and sports.Methods:The literature search was conducted using the databases PubMed, ISI Web of Knowledge and PsycInfo using the following terms and their combinations: “mental exertion”, “mental fatigue”, “mental fatigue and performance”, “mental exertion and sports” “mental exertion and exercise”.Results:We concluded that prior acute mental exertion affects effectively the physiological and psychophysiological responses during the cognitive task, and performance in exercise.Conclusion:Additional studies involving prior acute mental exertion, exercise/sports and physical performance still need to be carried out in order to analyze the physiological, psychophysiological and neurophysiological responses subsequently to acute mental exertion in order to identify cardiovascular factors, psychological, neuropsychological associates.

Mental Fatigue Reduces Training Volume in Resistance Exercise: A Cross-Over and Randomized Study

2020 ◽  
pp. 003151252095893
Author(s):  
Victor Sabino de Queiros ◽  
Matheus Dantas ◽  
Leonardo de Sousa Fortes ◽  
Luiz Felipe da Silva ◽  
Gilson Mendes da Silva ◽  
...  
Keyword(s):  
Resistance Exercise ◽  
Perceived Exertion ◽  
Cognitive Task ◽  
Randomized Study ◽  
Mental Fatigue ◽  
Training Volume ◽  
Training Experience ◽  
Back Squat ◽  
Study Participants ◽  
Failure Reporting

The present study aimed to determine the effect of mental fatigue (MF) on total training volume (TTV; number of repetitions x number of sets x load) and on ratings of perceived exertion (RPE; Borg, 1982 ) in the half-back squat exercise (HBSE). Nine male subjects ( M age = 22.6 years, SD =  2.3; M height = 172.3 cm , SD =  6.8; M weight = 76.2 kg , SD =  9.8; M years of resistance training experience = 4.1, SD = 2.3 years) recruited from a university population were study participants in this participant-blind cross-over and randomized study. Participants underwent either the Stroop task – a highly demanding cognitive task (CT) – or a control condition (CON) in which they viewed a documentary exhibition for 30 minutes. Perception of MF and motivation were assessed after treatments using a visual analog scale of 100 mm. Participants then engaged in a countermovement jump (CMJ) test and three sets of HBSE until they reached momentary concentric failure, reporting RPE at the end of each exercise set. Following the CT, participants showed a significantly increased self-perception of MF in relation to the CON condition ( p = 0.01; d = 1.2), but this did not affect their motivation to engage in subsequent tests ( p = 0.99; d = 0.006). Neither the CMJ performances nor the RPE were statistically different between CT and CON conditions ( p = 0.33; d = 0.09 and p = 0.20 ; η2 = 0.20, respectively). TTV was significantly lower in the CT relative to the CON experimental condition (Δ = −15.8%; p = 0.04; η2 = 0.48). Prolonged involvement in a CT was associated with reduced volume on a resistance exercise, though this effect was not associated with changes in CMJ performance or motivation to exercise.

EEG for evaluation of “chemobrain.”

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. 1076-1076
Author(s):  
Halle C. F. Moore ◽  
Michael W. Parsons ◽  
Guang H. Yue ◽  
Lisa A. Rybicki ◽  
Vlodek Siemionow
Keyword(s):  
Breast Cancer ◽  
Repeated Measures ◽  
Cognitive Task ◽  
Mental Fatigue ◽  
Cognitive Testing ◽  
Physical Endurance ◽  
Adult Intelligence Scale ◽  
Time Points ◽  
Physical Task ◽  
One Year

1076 Background: Cognitive impairment is a poorly understood and worrisome potential complication of adjuvant chemotherapy (CT). We sought to evaluate electroencephalography (EEG) as a means to measure neurophysiologic function in women receiving CT for early breast cancer. Methods: Women planning to undergo CT for operable breast cancer and age-similar controls were evaluated at baseline, during CT and at 1 year with neurophysiologic assessments. Testing included a brief fatigue inventory (BFI), brief mental fatigue assessment (BMF), Processing Speed Index (PSI) derived from Digit Symbol Coding and Symbol Search subtests of the Wechsler Adult Intelligence Scale, and a sustained elbow flexion physical task (PT). EEG recordings were obtained at rest and after the cognitive and physical tasks. Data were analyzed using repeated measures of analysis of variance. Results: Eight patient/control pairs completed baseline and on-treatment evaluations; 7 pairs also completed the 1 year assessment (1 pair withdrawn due to a second malignancy). Subjective mental fatigue measured by BMF is similar for patients and controls at baseline but BMF scores increase significantly during CT for patients relative to controls (p=0.033), recovering to no difference at one year. Differences in PSI are not observed between patients and controls or at the different time points. BFI scores are greater in patients at all 3 time points but endurance on the PT is no different from controls. During chemotherapy EEG total spectrum amplitudes in patients are greater than in controls at rest (p=0.05) and following both the cognitive (p<0.001) and physical (p<0.001) tasks. EEG activity prior to chemotherapy and at one year is not different between patients and controls. For patients but not controls EEG readings after the cognitive task demonstrate greater amplitude than pre-task readings during the time of CT treatment only (p=0.012) with a similar trend seen for the physical task (p=0.06). Conclusions: Patient-perceived mental and physical fatigue during chemotherapy correspond to significant changes in EEG brain activity patterns but not to cognitive testing or physical endurance testing. EEG may offer a sensitive means to measure alterations in brain function associated with CT.

scholarly journals Does Dysphoria Lead to Divergent Mental Fatigue Effects on a Cognitive Task?

PLoS ONE ◽  
2015 ◽  
Vol 10 (6) ◽  
pp. e0130304
Author(s):  
Jesper F. Hopstaken ◽  
Sabine Wanmaker ◽  
Dimitri van der Linden ◽  
Arnold B. Bakker
Keyword(s):  
Cognitive Task ◽  
Mental Fatigue

Neural mechanisms of mental fatigue

2014 ◽  
Vol 0 (0) ◽  
Author(s):  
Akira Ishii ◽  
Masaaki Tanaka ◽  
Yasuyoshi Watanabe
Keyword(s):  
Task Performance ◽  
Cognitive Task ◽  
Modern Society ◽  
Brain Regions ◽  
Mental Fatigue ◽  
Physical Activities ◽  
Neural Mechanisms ◽  
Regulatory Mechanisms ◽  
Regulation System ◽  
Cognitive Task Performance

AbstractFatigue is defined as a decline in the ability and efficiency of mental and/or physical activities that is caused by excessive mental and/or physical activities. Fatigue can be classified as physical or mental. Mental fatigue manifests as potentially impaired cognitive function and is one of the most significant causes of accidents in modern society. Recently, it has been shown that the neural mechanisms of mental fatigue related to cognitive task performance are more complex than previously thought and that mental fatigue is not caused only by impaired activity in task-related brain regions. There is accumulating evidence supporting the existence of mental facilitation and inhibition systems. These systems are involved in the neural mechanisms of mental fatigue, modulating the activity of task-related brain regions to regulate cognitive task performance. In this review, we propose a new conceptual model: the dual regulation system of mental fatigue. This model contributes to our understanding of the neural mechanisms of mental fatigue and the regulatory mechanisms of cognitive task performance in the presence of mental fatigue.

scholarly journals EEG Markers of Cognitive Engagement

Neurology ◽  
2019 ◽  
Vol 93 (14 Supplement 1) ◽  
pp. S3.1-S3
Author(s):  
Ashleigh Kennedy ◽  
Jordan Hassin
Keyword(s):  
Cognitive Task ◽  
Cognitive Activity ◽  
Cognitive Engagement ◽  
Mental Fatigue ◽  
Cognitive Tasks ◽  
Mental Load ◽  
Cognitive Changes ◽  
Non Invasive ◽  
The Individual ◽  
Study Participants

ObjectiveThe purpose of this study was to use portable electroencephalography and qualitative assessments to characterize cognitive changes associated with perceived increase in mental load and to identify markers of mental fatigue in these individuals.BackgroundThe ability to focus on cognitive tasks impacts everything from our social interactions to our success in the classroom or workplace. Concussion negatively impacts the ability to focus and causes patients to experience signs of mental fatigue more quickly than those without concussion. The mechanisms behind these changes are still not well understood.Design/MethodsFifteen concussion patients and fifteen age-matched controls were recruited to participate in this study. Participants performed two, thirty-minute testing sessions spaced 1 month apart. In each session, participants performed 8 cognitive tasks eliciting varying levels of cognitive activity. Cognitive activity was quantitatively assessed using a MUSE non-invasive EEG headset. These data were compared to a perceived level of cognitive activity determined by the individual using the Klepsh et al (2017) cognitive engagement scale and mental fatigue assessed by the Mental Fatigue Scale (Johansson2014).ResultsThe results demonstrate that frequency based EEG changes correlated with decreased ability to focus on the cognitive task and with perceived cognitive fatigue in both concussion patients and healthy controls.ConclusionsFuture studies should utilize the same methods to monitor cognitive activity differences during daily functional living.

scholarly journals Mental fatigue impairs physical performance in humans

2009 ◽  
Vol 106 (3) ◽  
pp. 857-864 ◽  
Author(s):  
Samuele M. Marcora ◽  
Walter Staiano ◽  
Victoria Manning
Keyword(s):  
Physical Performance ◽  
Perceived Exertion ◽  
Cognitive Task ◽  
Cognitive Activity ◽  
Mental Fatigue ◽  
Peak Power Output ◽  
Time To Exhaustion ◽  
Perception Of Effort ◽  
Physical Task ◽  
The Impact

Mental fatigue is a psychobiological state caused by prolonged periods of demanding cognitive activity. Although the impact of mental fatigue on cognitive and skilled performance is well known, its effect on physical performance has not been thoroughly investigated. In this randomized crossover study, 16 subjects cycled to exhaustion at 80% of their peak power output after 90 min of a demanding cognitive task (mental fatigue) or 90 min of watching emotionally neutral documentaries (control). After experimental treatment, a mood questionnaire revealed a state of mental fatigue ( P = 0.005) that significantly reduced time to exhaustion (640 ± 316 s) compared with the control condition (754 ± 339 s) ( P = 0.003). This negative effect was not mediated by cardiorespiratory and musculoenergetic factors as physiological responses to intense exercise remained largely unaffected. Self-reported success and intrinsic motivation related to the physical task were also unaffected by prior cognitive activity. However, mentally fatigued subjects rated perception of effort during exercise to be significantly higher compared with the control condition ( P = 0.007). As ratings of perceived exertion increased similarly over time in both conditions ( P < 0.001), mentally fatigued subjects reached their maximal level of perceived exertion and disengaged from the physical task earlier than in the control condition. In conclusion, our study provides experimental evidence that mental fatigue limits exercise tolerance in humans through higher perception of effort rather than cardiorespiratory and musculoenergetic mechanisms. Future research in this area should investigate the common neurocognitive resources shared by physical and mental activity.

scholarly journals Mental fatigue might be not so bad for exercise performance after all: a systematic review and bias-sensitive meta-analysis.

2019 ◽  
Author(s):  
Darias Holgado ◽  
Daniel Sanabria ◽  
José C. Perales ◽  
Miguel A. Vadillo
Keyword(s):  
Exercise Performance ◽  
Human Performance ◽  
Cognitive Task ◽  
Meta Analysis ◽  
Negative Influence ◽  
Mental Fatigue ◽  
Current Evidence ◽  
Science Field ◽  
Negative Effect ◽  
Sport And Exercise

There is an ongoing debate in the scientific community regarding whether a state of mental fatigue may have a negative effect upon a range of objective and subjective measures of human performance. This issue has attracted attention from several fields, including sport and exercise sciences. In fact, a considerable body of literature in the sport science field has suggested that performing a long and demanding cognitive task might lead to a state of mental fatigue, impairing subsequent exercise performance, although research in this field has shown contradictory results. Here, we performed a meta-analysis to investigate these inconsistent findings. The analysis yielded small-to-medium effects of mental fatigue on exercise performance, dz = 0.50, and RPE, dz = 0.21. However, a three-parameter selection model also revealed evidence of publication or reporting biases, suggesting that the bias-corrected estimates might be substantially lower (0.08 and 0.10, respectively) and non-significant. In sum, current evidence does not provide conclusive support for the claim that mental fatigue has a negative influence on exercise performance.

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