Mental Fatigue Alters Cortical Activation and Psychological Responses, Impairing Performance in a Distance-Based Cycling Trial
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNIFESP |
Texto Completo: | https://dx.doi.org/10.3389/fphys.2018.00227 https://repositorio.unifesp.br/handle/11600/55812 |
Resumo: | Purpose: We sought to verify if alterations in prefrontal cortex (PFC) activation and psychological responses would play along with impairments in pacing and performance of mentally fatigued cyclists. Materials and Methods: Eight recreational cyclists performed two preliminary sessions to familiarize them with the rapid visual information processing (RVP) test, psychological scales and 20 km cycling time trial (TT20km) (session 1), as well as to perform a VO2MAX test (session 2). Thereafter, they performed a TT20km either after a RVP test (30 min) or a time-matched rest control session (session 3 and 4 in counterbalanced order). Performance and psychological responses were obtained throughout the TT20km while PFC electroencephalography (EEG) was obtained at 10 and 20 km of the TT20km and throughout the RVP test. Increases in EEG theta band power indicated a mental fatigue condition. Repeated-measures mixed models design and post-hoc effect size (ES) were used in comparisons. Results: Cyclists completed the trial ~2.7% slower in mental fatigue (34.3 ± 1.3 min) than in control (33.4 ± 1.1 min, p = 0.02, very large ES), with a lower WMEAN (224.5 ± 17.9 W vs. 240.2 ± 20.9 W, respectively; p = 0.03; extremely large ES). There was a higher EEG theta band power during RVP test (p = 0.03; extremely large ES), which remained during the TT20km (p = 0.01; extremely large ES). RPE increased steeper in mental fatigue than in control, together with isolated reductions in motivation at 2th km (p = 0.04; extremely large ES), felt arousal at the 2nd and 4th km (p = 0.01; extremely large ES), and associative thoughts to exercise at the 6th and 16th km (p = 0.02; extremely large ES) of the TT20km. Conclusions: Mentally fatigued recreational cyclists showed impaired performance, altered PFC activation and faster increase in RPE during a TT20km. |
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Mental Fatigue Alters Cortical Activation and Psychological Responses, Impairing Performance in a Distance-Based Cycling TrialFatigueMotivationEEGPacing strategyPrefrontal cortexPurpose: We sought to verify if alterations in prefrontal cortex (PFC) activation and psychological responses would play along with impairments in pacing and performance of mentally fatigued cyclists. Materials and Methods: Eight recreational cyclists performed two preliminary sessions to familiarize them with the rapid visual information processing (RVP) test, psychological scales and 20 km cycling time trial (TT20km) (session 1), as well as to perform a VO2MAX test (session 2). Thereafter, they performed a TT20km either after a RVP test (30 min) or a time-matched rest control session (session 3 and 4 in counterbalanced order). Performance and psychological responses were obtained throughout the TT20km while PFC electroencephalography (EEG) was obtained at 10 and 20 km of the TT20km and throughout the RVP test. Increases in EEG theta band power indicated a mental fatigue condition. Repeated-measures mixed models design and post-hoc effect size (ES) were used in comparisons. Results: Cyclists completed the trial ~2.7% slower in mental fatigue (34.3 ± 1.3 min) than in control (33.4 ± 1.1 min, p = 0.02, very large ES), with a lower WMEAN (224.5 ± 17.9 W vs. 240.2 ± 20.9 W, respectively; p = 0.03; extremely large ES). There was a higher EEG theta band power during RVP test (p = 0.03; extremely large ES), which remained during the TT20km (p = 0.01; extremely large ES). RPE increased steeper in mental fatigue than in control, together with isolated reductions in motivation at 2th km (p = 0.04; extremely large ES), felt arousal at the 2nd and 4th km (p = 0.01; extremely large ES), and associative thoughts to exercise at the 6th and 16th km (p = 0.02; extremely large ES) of the TT20km. Conclusions: Mentally fatigued recreational cyclists showed impaired performance, altered PFC activation and faster increase in RPE during a TT20km.Univ Sao Paulo, Sch Arts Sci & Humanities, Exercise Psychophysiol Res Grp, Sao Paulo, BrazilUniv Fed Sao Paulo, Human Movement Sci & Rehabil Program, Santos, BrazilFed Univ Piaui UFPI, Brain Mapping & Plast Lab LAMPLACE, Parnaiba, BrazilUniv Catolica Brasilia, Phys Educ Program, Brasilia, DF, BrazilUniv Fed Pernambuco, Phys Educ Program, Res Ctr Performance & Hlth, Pernambuco, BrazilUniv Fed Sao Paulo, Human Movement Sci & Rehabil Program, Santos, BrazilWeb of ScienceCNPq-BrazilFAPESP-BrazilCNPq: 480883/2013-0FAPESP: 2016/16496-3Frontiers Media SaUniversidade Federal de São Paulo (UNIFESP)Pires, Flávio de Oliveira [UNIFESP]Silva-Junior, Fernando Lopes eBrietzke, CayqueFranco-Alvarenga, Paulo EstevãoPinheiro, Fabiano AparecidoFranca, Nanci M. deTeixeira, SilmarSantos, Tony Meireles2020-07-20T16:31:14Z2020-07-20T16:31:14Z2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion-application/pdfhttps://dx.doi.org/10.3389/fphys.2018.00227Frontiers In Physiology. Lausanne, v. 9, 2018.10.3389/fphys.2018.00227WOS000427621100001.pdf1664-042Xhttps://repositorio.unifesp.br/handle/11600/55812WOS:000427621100001engFrontiers In PhysiologyLausanneinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UNIFESPinstname:Universidade Federal de São Paulo (UNIFESP)instacron:UNIFESP2024-08-03T08:25:15Zoai:repositorio.unifesp.br/:11600/55812Repositório InstitucionalPUBhttp://www.repositorio.unifesp.br/oai/requestbiblioteca.csp@unifesp.bropendoar:34652024-08-03T08:25:15Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)false |
dc.title.none.fl_str_mv |
Mental Fatigue Alters Cortical Activation and Psychological Responses, Impairing Performance in a Distance-Based Cycling Trial |
title |
Mental Fatigue Alters Cortical Activation and Psychological Responses, Impairing Performance in a Distance-Based Cycling Trial |
spellingShingle |
Mental Fatigue Alters Cortical Activation and Psychological Responses, Impairing Performance in a Distance-Based Cycling Trial Pires, Flávio de Oliveira [UNIFESP] Fatigue Motivation EEG Pacing strategy Prefrontal cortex |
title_short |
Mental Fatigue Alters Cortical Activation and Psychological Responses, Impairing Performance in a Distance-Based Cycling Trial |
title_full |
Mental Fatigue Alters Cortical Activation and Psychological Responses, Impairing Performance in a Distance-Based Cycling Trial |
title_fullStr |
Mental Fatigue Alters Cortical Activation and Psychological Responses, Impairing Performance in a Distance-Based Cycling Trial |
title_full_unstemmed |
Mental Fatigue Alters Cortical Activation and Psychological Responses, Impairing Performance in a Distance-Based Cycling Trial |
title_sort |
Mental Fatigue Alters Cortical Activation and Psychological Responses, Impairing Performance in a Distance-Based Cycling Trial |
author |
Pires, Flávio de Oliveira [UNIFESP] |
author_facet |
Pires, Flávio de Oliveira [UNIFESP] Silva-Junior, Fernando Lopes e Brietzke, Cayque Franco-Alvarenga, Paulo Estevão Pinheiro, Fabiano Aparecido Franca, Nanci M. de Teixeira, Silmar Santos, Tony Meireles |
author_role |
author |
author2 |
Silva-Junior, Fernando Lopes e Brietzke, Cayque Franco-Alvarenga, Paulo Estevão Pinheiro, Fabiano Aparecido Franca, Nanci M. de Teixeira, Silmar Santos, Tony Meireles |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal de São Paulo (UNIFESP) |
dc.contributor.author.fl_str_mv |
Pires, Flávio de Oliveira [UNIFESP] Silva-Junior, Fernando Lopes e Brietzke, Cayque Franco-Alvarenga, Paulo Estevão Pinheiro, Fabiano Aparecido Franca, Nanci M. de Teixeira, Silmar Santos, Tony Meireles |
dc.subject.por.fl_str_mv |
Fatigue Motivation EEG Pacing strategy Prefrontal cortex |
topic |
Fatigue Motivation EEG Pacing strategy Prefrontal cortex |
description |
Purpose: We sought to verify if alterations in prefrontal cortex (PFC) activation and psychological responses would play along with impairments in pacing and performance of mentally fatigued cyclists. Materials and Methods: Eight recreational cyclists performed two preliminary sessions to familiarize them with the rapid visual information processing (RVP) test, psychological scales and 20 km cycling time trial (TT20km) (session 1), as well as to perform a VO2MAX test (session 2). Thereafter, they performed a TT20km either after a RVP test (30 min) or a time-matched rest control session (session 3 and 4 in counterbalanced order). Performance and psychological responses were obtained throughout the TT20km while PFC electroencephalography (EEG) was obtained at 10 and 20 km of the TT20km and throughout the RVP test. Increases in EEG theta band power indicated a mental fatigue condition. Repeated-measures mixed models design and post-hoc effect size (ES) were used in comparisons. Results: Cyclists completed the trial ~2.7% slower in mental fatigue (34.3 ± 1.3 min) than in control (33.4 ± 1.1 min, p = 0.02, very large ES), with a lower WMEAN (224.5 ± 17.9 W vs. 240.2 ± 20.9 W, respectively; p = 0.03; extremely large ES). There was a higher EEG theta band power during RVP test (p = 0.03; extremely large ES), which remained during the TT20km (p = 0.01; extremely large ES). RPE increased steeper in mental fatigue than in control, together with isolated reductions in motivation at 2th km (p = 0.04; extremely large ES), felt arousal at the 2nd and 4th km (p = 0.01; extremely large ES), and associative thoughts to exercise at the 6th and 16th km (p = 0.02; extremely large ES) of the TT20km. Conclusions: Mentally fatigued recreational cyclists showed impaired performance, altered PFC activation and faster increase in RPE during a TT20km. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018 2020-07-20T16:31:14Z 2020-07-20T16:31:14Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://dx.doi.org/10.3389/fphys.2018.00227 Frontiers In Physiology. Lausanne, v. 9, 2018. 10.3389/fphys.2018.00227 WOS000427621100001.pdf 1664-042X https://repositorio.unifesp.br/handle/11600/55812 WOS:000427621100001 |
url |
https://dx.doi.org/10.3389/fphys.2018.00227 https://repositorio.unifesp.br/handle/11600/55812 |
identifier_str_mv |
Frontiers In Physiology. Lausanne, v. 9, 2018. 10.3389/fphys.2018.00227 WOS000427621100001.pdf 1664-042X WOS:000427621100001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Frontiers In Physiology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
- application/pdf |
dc.coverage.none.fl_str_mv |
Lausanne |
dc.publisher.none.fl_str_mv |
Frontiers Media Sa |
publisher.none.fl_str_mv |
Frontiers Media Sa |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UNIFESP instname:Universidade Federal de São Paulo (UNIFESP) instacron:UNIFESP |
instname_str |
Universidade Federal de São Paulo (UNIFESP) |
instacron_str |
UNIFESP |
institution |
UNIFESP |
reponame_str |
Repositório Institucional da UNIFESP |
collection |
Repositório Institucional da UNIFESP |
repository.name.fl_str_mv |
Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP) |
repository.mail.fl_str_mv |
biblioteca.csp@unifesp.br |
_version_ |
1818191258353401856 |