Mental fatigue does not alter performance or neuromuscular fatigue development during self-paced exercise in recreationally trained cyclists

Silva‐Cavalcante, Marcos David; Couto, Patrícia Guimarães; Azevedo, Rebeca Souza; Silva, Renata Gonçalves; Coelho, Daniel Boari; Lima‐Silva, Adriano Eduardo; Bertuzzi, Rômulo Cássio de Moraes

doi:10.1007/s00421-018-3974-0

Cited by 45 publications

(37 citation statements)

References 61 publications

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“…In this study we found that a sustained attention task that induced mental fatigue had no effect on muscle twitch properties as a single or dual-task, indicating our contraction protocol did not induce muscular fatigue. This finding is also consistent with previous investigations in which inducing mental fatigue did not change muscle contractile properties of the knee extensors (Pageaux et al, 2013;Silva-Cavalcante et al, 2018). There was a significant main effect of time for M-wave amplitude, however, given post hoc analysis did not demonstrate significant change over time, this difference is likely not significant.…”

Section: M-wave and Muscle Twitch Propertiessupporting

confidence: 92%

“…There was a significant main effect of time for M-wave amplitude, however, given post hoc analysis did not demonstrate significant change over time, this difference is likely not significant. No change in M-wave amplitude after a mentally fatiguing task is consistent with the findings of others (Pageaux et al, 2013;Silva-Cavalcante et al, 2018). These results suggest that exercise performance decrements after a mentally fatiguing task are not likely due to impaired contractile properties, and thus more central processes are contributing.…”

Section: M-wave and Muscle Twitch Propertiessupporting

confidence: 90%

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Force Control and Motor Unit Firing Behavior Following Mental Fatigue in Young Female and Male Adults

Kowalski

Anita

2020

Front. Integr. Neurosci.

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The neuromuscular mechanisms leading to impaired motor performance in the presence of mental fatigue remain unclear. It is also unknown if mental fatigue differentially impacts motor performance in males and females. The purpose of this study was to assess the impact of mental fatigue on force production and motor unit (MU) firing behavior in males and females. Methods: Nineteen participants performed 10-s isometric dorsiflexion (DF) contractions at 20 and 50% maximum voluntary contraction (MVC) before, during, and after completing 22 min of the psychomotor vigilance task (PVT), to induce mental fatigue. The DF force and indwelling MU firing behavior of the tibialis anterior (TA) was measured before and immediately following the PVT and within the first and final minutes of the PVT. Results: Force steadiness and motor unit firing rate (MUFR) variability did not change during or following the PVT at either contraction intensity (p ≥ 0.16). Overall, females had more variability than males in MUFR during the 20% MVCs (15.98 ± 2.19 vs. 13.64 ± 2.19%, p = 0.03), though no sex differences were identified during the 50% MVCs (p = 0.20). Mean MUFR decreased following mental fatigue in both sexes in the 20% MVC condition (14.79 ± 3.20 vs. 12.92 ± 2.53 Hz, p = 0.02), but only in males during the 50% MVC condition (18.65 ± 5.21 vs. 15.03 ± 2.60 Hz, p = 0.01). Conclusions: These results suggest possible sex and contraction intensity-specific neuromuscular changes in the presence of mental fatigue.

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Section: M-wave and Muscle Twitch Propertiessupporting

confidence: 92%

Section: M-wave and Muscle Twitch Propertiessupporting

confidence: 90%

Force Control and Motor Unit Firing Behavior Following Mental Fatigue in Young Female and Male Adults

Kowalski

Anita

2020

Front. Integr. Neurosci.

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“…In this study, participants in the mental fatigue condition reached exhaustion sooner in a cycling test and rated a higher RPE. Subsequently, this literature has grown considerably over the last few years, with some studies replicating Marcora et al's (2009) findings (e.g., Head et al, 2016;MacMahon, Schücker, Hagemann, & Strauss, 2014;Pires et al, 2018) and others reporting null effects (Holgado, Troya, Perales, Vadillo, & Sanabria, 2020;Silva-Cavalcante et al, 2018;Van Cutsem, De Pauw, et al, 2017). This discrepancy could be accounted for by several factors that deserve closer examination.…”

Section: Introductionmentioning

confidence: 99%

Mental Fatigue Might Be Not So Bad for Exercise Performance After All: A Systematic Review and Bias-Sensitive Meta-Analysis

Holgado

Sanabria

Perales

et al. 2020

Journal of Cognition

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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, d z = 0.50, and RPE, d z = 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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“…For instance, McMorris et al (2018) biases. Together with this potential publication bias, the results from the empirical studies should be interpreted with caution for the following reasons: first, sample sizes are generally low (less than 20 participants) which may lead to overestimation of effect sizes; second, the experimental and control conditions usually varied in several components, such as the duration of the interventions (Martin et al, 2016) or performing a cognitive task versus doing nothing in the control condition (Martin et al, 2016;Penna et al, 2018;Pires et al, 2018;Silva-Cavalcante et al, 2018;Staiano et al, 2018).…”

Section: Mental Fatigue Before Self-paced Exercisementioning

confidence: 99%

Does self-paced exercise depend on executive processing? A narrative review of the current evidence

Holgado¹,

Sanabria²

2019

Preprint

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Self-paced exercise is any physical activity in which the effort has to be distributed over time in order to achieve the objective of the event. Hence, self-paced aerobic exercise is a goal-directed behaviour towards an objective that involves several cognitive processes. The aim of the present review is to ask the extent to which self-paced exercise might rely on executive functions and the empirical evidence of top-down processing on self-paced exercise. We discuss the evidence from different experimental manipulations showing a potential link between self-paced exercise and executive processing. We finally highlight some gaps in the literature and possible factors that might mediate the role of executive processing and self-paced exercise. Self-paced exercise is likely to be a highly complex process, in which a multitude of factors non-related to executive functions can also contribute to the ultimate decision to upregulate or downregulate exercise intensity.

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Mental fatigue does not alter performance or neuromuscular fatigue development during self-paced exercise in recreationally trained cyclists

Abstract: Mental fatigue induced by prolonged cognitive task does not impair performance nor alter the degree of central and peripheral fatigue development during self-paced exercise in recreationally trained cyclists.

Cited by 45 publications

References 61 publications

Force Control and Motor Unit Firing Behavior Following Mental Fatigue in Young Female and Male Adults

Force Control and Motor Unit Firing Behavior Following Mental Fatigue in Young Female and Male Adults

Mental Fatigue Might Be Not So Bad for Exercise Performance After All: A Systematic Review and Bias-Sensitive Meta-Analysis

Does self-paced exercise depend on executive processing? A narrative review of the current evidence

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