Resposta cardiovascular ao Stroop: comparação entre teste computadorizado e verbal

Barbosa, Daniel Fernandes; Prada, Francisco José Andriotti; Glanner, Maria Fátima; Nóbrega, Otávio de Tolêdo; Córdova, Cláudio

doi:10.1590/s0066-782x2010005000006

Cited by 14 publications

(7 citation statements)

References 12 publications

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“…Indeed, activities that require high levels of mental effort and selective and sustained attention processing can result in reduction of parasympathetic tone and homeostatic changes [46]. And, these results support the evidence that complex interactions between the sympathetic-parasympathetic systems occur when participants perform tests that demand states of attention and acute psychological stress [45]. …”

Section: Resultssupporting

confidence: 62%

“…In another study, by Marcora, Staiano, Manning [19], using a cognitive task 90-minute protocol was used which showed that performing a mental task (experimental) is able to increase significantly the mean values of HR compared to the control condition (65 ± 8 bpm vs. 62 ± 8 bpm for experimental and control, respectively). Corroborating the previously mentioned studies, Barbosa et al [45] investigated the cardiopulmonary responses of two versions of a cognitive task (computerized and verbal), including the HR. In this study, the sample consisted of 20 participants who performed the computerized version of the Stroop and verbal test.…”

Section: Resultsmentioning

confidence: 99%

“…Second, there have been, however, significant differences in blood pressure measurements, HR and sinus arrhythmia between versions of the Stroop test. One possible explanation for the changes in physiological measurements can be attributed, at least in part, to sympathetic neurohumoral activation due to the informational processing demand [45]. …”

Section: Resultsmentioning

confidence: 99%

“…Thus, the authors demonstrated that the increase in HR and other cardiovascular parameters observed during and after implementation of a mental task, compared to condition without mental task, realize the most natural demand of cardiac activity during mental effort [44, 45]. In addition, most natural demand of the cognitive task is confirmed by the greater perception of mental exertion reported by the subjects [19, 20, 37].…”

Section: Resultsmentioning

confidence: 99%

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Prior Acute Mental Exertion in Exercise and Sport

Silva-Júnior¹,

Emanuel²,

Sousa³

et al. 2016

CPEMH

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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.

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Section: Resultssupporting

confidence: 62%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Prior Acute Mental Exertion in Exercise and Sport

Silva-Júnior¹,

Emanuel²,

Sousa³

et al. 2016

CPEMH

View full text Add to dashboard Cite

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“…When the participant is asked to answer on the color of the word and ignore its identity (the word-color interference effect), the automatic processing of the word identity is inhibited due to less automated processes, such as the color used to print the word [14]. Computerized versions are considered more accurate than paper-pen versions [15].…”

Section: Primary Measurementioning

confidence: 99%

Improving Mental Performance in an Athletic Population with the Use of Ārepa®, a Blackcurrant Based Nootropic Drink: A Randomized Control Trial

Gibson

Baker

Sharples³

et al. 2020

Antioxidants

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A range of dietary bioactive ingredients have claimed to improve mental clarity and reduce fatigue, including blackcurrant, pine bark, and l-theanine. These active ingredients provide a good source of dietary polyphenols which could be useful in reducing mental fatigue in a sports setting. The aim of the investigation was to test the effect ofĀrepa ® a blackcurrant-based nootropic-drink also containing pine-bark and l-theanine (BC+), on mental clarity in a sport setting. Twenty-three rugby league players completed a cross-over design, randomized, double-blind, controlled trial. Intervention and control phases lasted 7 days, with a washout in between. Cognition was assessed pre and post intervention following a standardized training session. Our study found the total score, accuracy, and average time per response scores improved significantly more after drinking the BC+ drink (p = 0.001, 0.003, and 0.043 respectively). The BC+ improved the perception that participants were reliable (p = 0.02) and less distracted (p = 0.03), while placebo supplementation increased participant perception they could control their nervousness (p = 0.03). Thematic analysis of post-trial questionnaire indicated participants found the BC+ sour, most reported no side effects, and opinion on which drink was more effective was not unanimous. The results indicate that the BC+ drink may be useful for athletes.Antioxidants 2020, 9, 316 2 of 12 adverse physiological changes that occur in response to increased stress hormones. Stress hormones, such as cortisol, impair immune function, inhibit anabolic pathways, and promote catabolism, driving an increased risk of injury/illness, impaired ability to adapt and repair muscles, as well as increased perception of pain and fatigue [3]. Interventions that may independently reduce excess stress may indirectly assist in improving cognitive outcomes in high pressure sporting situations.With emerging evidence suggesting anthocyanin-rich blackcurrants may have a role in preventing cognitive decline [4] and enhancing physical performance [5,6], there is interest that the richly colored berries may elicit further benefits such as acute improvements in cognition. Alongside the increasing evidence for blackcurrant polyphenols, pine bark extract has also shown to improve the speed of response for the spatial working memory and immediate recognition tasks in humans [7,8], although most research has tested non-athletic, older adult participants. Nootropics are defined as substances that may improve cognitive function, particularly executive functions, memory, creativity, or motivation, in healthy individuals. For many years caffeine has been used as a successful nootropic aide, as moderate doses of caffeine can improve cognitive function, including vigilance, learning, memory, and mood state [9]. However, caffeine can become addictive, hence the search for alternative nootropic agents.A recent narrative review highlighted the physiological mechanisms behind the potential of blackcurrant polyphenols to influence co...

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