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Proost M, De Bock S, Habay J, Nagels G, De Pauw K, Meeusen R, Roelands B, Van Cutsem J. Electrophysiological impact of mental fatigue on brain activity during a bike task: A wavelet analysis approach. Physiol Behav 2024; 282:114586. [PMID: 38763379 DOI: 10.1016/j.physbeh.2024.114586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 04/29/2024] [Accepted: 05/16/2024] [Indexed: 05/21/2024]
Abstract
This study explored how mental fatigue affects brain activity during a low-intensity bike task utilising a continuous wavelet transformation in electroencephalography (EEG) analysis. The aim was to examine changes in brain activity potentially linked to central motor commands and to investigate their relationship with ratings of perceived exertion (RPE). In this study, sixteen participants (age: 21 ± 6 y, 7 females, 9 males) underwent one familiarization and two experimental trials in a randomised, blinded, cross-over study design. Participants executed a low-intensity bike task (9 min; 45 rpm; intensity (W): 10 % below aerobic threshold) after performing a mentally fatiguing (individualized 60-min Stroop task) or a control (documentary) task. Physiological (heart rate, EEG) and subjective measures (self-reported feeling of mental fatigue, RPE, cognitive load, motivation) were assessed prior, during and after the bike task. Post-Stroop, self-reported feeling of mental fatigue was higher in the intervention group (EXP) (74 ± 16) than in the control group (CON) (37 ± 17; p < 0.001). No significant differences in RPE during the bike task were observed between conditions. EEG analysis revealed significant differences (p < 0.05) in beta frequency (13-30 Hz) during the bike task, with EXP exhibiting more desynchronization during the pedal push phase and synchronization during the pedal release phase. These results suggest that mental fatigue, confirmed by both subjective and neurophysiological markers, did not significantly impact RPE during the bike task, possibly due to the use of the CR100 scale or absence of a performance outcome. However, EEG data did reveal significant beta band alterations during the task, indicating increased neural effort under mental fatigue. These findings reveal, for the first time, how motor-related brain activity at the motor cortex is impacted during a low-intensity bike task when mentally fatigued.
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Affiliation(s)
- Matthias Proost
- Human Physiology and Sports Physiotherapy Research Group, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Belgium
| | - Sander De Bock
- Human Physiology and Sports Physiotherapy Research Group, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Belgium; BruBotics, Vrije Universiteit Brussel, Brussels, Belgium
| | - Jelle Habay
- Human Physiology and Sports Physiotherapy Research Group, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Belgium; Vital signs and PERformance monitoring (VIPER) Research Unit, LIFE Department, Royal Military Academy, Brussels, Belgium; Research Foundation Flanders (FWO), Brussels, Belgium
| | - Guy Nagels
- AIMS Lab, Center for Neurosciences, Vrije Universiteit Brussel, Ke.2.13, Pleinlaan 2, 1050, Elsene, Brussels, Belgium
| | - Kevin De Pauw
- Human Physiology and Sports Physiotherapy Research Group, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Belgium; BruBotics, Vrije Universiteit Brussel, Brussels, Belgium
| | - Romain Meeusen
- Human Physiology and Sports Physiotherapy Research Group, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Belgium; BruBotics, Vrije Universiteit Brussel, Brussels, Belgium
| | - Bart Roelands
- Human Physiology and Sports Physiotherapy Research Group, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Belgium; BruBotics, Vrije Universiteit Brussel, Brussels, Belgium.
| | - Jeroen Van Cutsem
- Human Physiology and Sports Physiotherapy Research Group, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Belgium; Vital signs and PERformance monitoring (VIPER) Research Unit, LIFE Department, Royal Military Academy, Brussels, Belgium
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Proost M, Habay J, DE Wachter J, DE Pauw K, Marusic U, Meeusen R, DE Bock S, Roelands B, VAN Cutsem J. The Impact of Mental Fatigue on a Strength Endurance Task: Is There a Role for the Movement-Related Cortical Potential? Med Sci Sports Exerc 2024; 56:435-445. [PMID: 37847068 DOI: 10.1249/mss.0000000000003322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
PURPOSE Several mechanisms have been proposed to explain how mental fatigue degrades sport performance. In terms of endurance performance, a role for an increased perceived exertion has been demonstrated. Using electroencephalography and, more specifically, the movement-related cortical potential (MRCP), the present study explored the neural mechanisms that could underlie the mental fatigue-associated increase in perceived exertion. METHODS Fourteen participants (age, 23 ± 2 yr; 5 women, 9 men) performed one familiarization and two experimental trials in a randomized, blinded, crossover study design. Participants had to complete a submaximal leg extension task after a mentally fatiguing task (EXP; individualized 60-min Stroop task) or control task (CON; documentary). The leg extension task consisted of performing 100 extensions at 35% of 1 repetition maximum, during which multiple physiological (heart rate, electroencephalography) and subjective measures (self-reported feeling of mental fatigue, cognitive load, behand motivation, ratings of perceived exertion) were assessed. RESULTS Self-reported feeling of mental fatigue was higher in EXP (72 ± 18) compared with CON (37 ± 17; P < 0.001). A significant decrease in flanker accuracy was detected only in EXP (from 0.96 ± 0.03% to 0.03%; P < 0.05). No significant differences between conditions were found in MRCP characteristics and perceived exertion. Specifically in EXP, alpha wave power increased during the leg extension task ( P < 0.01). CONCLUSIONS Mental fatigue did not impact the perceived exertion or MRCP characteristics during the leg extension task. This could be related to low perceived exertion and/or the absence of a performance outcome during the leg extension task. The increase in alpha power during the leg extension task in EXP suggests that participants may engage a focused internal attention mechanism to maintain performance and mitigate feelings of fatigue.
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Affiliation(s)
- Matthias Proost
- Human Physiology and Sports Physiotherapy Research Group, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Brussel, BELGIUM
| | | | - Jonas DE Wachter
- Human Physiology and Sports Physiotherapy Research Group, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Brussel, BELGIUM
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Kotnik P, Roelands B, Bogataj Š. Prolonged theoretical classes impact students' perceptions: an observational study. Front Psychol 2024; 15:1278396. [PMID: 38449760 PMCID: PMC10916696 DOI: 10.3389/fpsyg.2024.1278396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 02/12/2024] [Indexed: 03/08/2024] Open
Abstract
Mental fatigue (MF) arises during prolonged demanding cognitive activity and results in acute feelings of tiredness and a decreased physical and/or cognitive performance capacity. An often-overlooked population that is significantly at risk for the development of MF are university students. The current study investigated the impact of prolonged in-person theoretical classes on the perceptions of MF, boredom, and sleepiness among 27 Slovenian university students (first-year physiotherapy). Their subjective experiences at various time points during a 4-h class interspersed with a 20 min break were assessed with a repeated measures ANOVA and consequent Bonferroni post-hoc tests (significance set at <0.05). Subjective MF and sleepiness significantly increased during the first and the second part of the class (p < 0.05), while they significantly decreased during the break (p < 0.05). Boredom levels only increased significantly during the second part of the class (p < 0.05). Additionally, students who had inadequate sleep the night before the class reported higher levels of MF at the beginning of the class. This study highlighted a significant impact of a theoretical class on subjective feelings of mental fatigue and showed that a break in the middle of the class temporarily alleviated this negative impact. These results emphasize the importance of adequate sleep, effective breaks, and strategies to manage cognitive workload in optimizing students' cognitive well-being and academic performance. Further research is needed to better understand the underlying factors and develop targeted interventions to support students' cognitive functioning and well-being during prolonged academic sessions.
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Affiliation(s)
- Petra Kotnik
- Faculty of Health Sciences, University of Novo Mesto, Novo Mesto, Slovenia
| | - Bart Roelands
- Human Physiology and Sports Physiotherapy Research Group, Vrije Universiteit Brussel, Brussels, Belgium
| | - Špela Bogataj
- Department of Nephrology, University Medical Centre Ljubljana, Ljubljana, Slovenia
- Faculty of Sport, University of Ljubljana, Ljubljana, Slovenia
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Sun H, Geok Soh K, Mohammadi A, Toumi Z. The counteractive effects of interventions addressing mental fatigue on sport-specific performance among athletes: A systematic review with a meta-analysis. J Sports Sci 2024:1-13. [PMID: 38368626 DOI: 10.1080/02640414.2024.2317633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 02/02/2024] [Indexed: 02/20/2024]
Abstract
The deleterious consequences of mental fatigue (MF) on athletes in diverse sporting domains have been subject to extensive inquiry. However, the efficacy of interventions to counteract the effects of MF remains largely elusive. This review aims to evaluate the effects of counteractive interventions on the sport-specific performance of mentally fatigued athletes. Moreover, synthesizes the current evidence on which sports effectively counter the detrimental effects of MF with interventions, highlighting potential avenues for upcoming research. A systematic search was executed via Web of Science, Scopus, PubMed, and EBSCOhost, in addition to Google Scholar and references for grey literature. A meta-analysis was executed to compute effect sizes for different interventions with 13 qualified papers. Interventions include transcranial direct current stimulation, person-fit, mindfulness, glucose supplementation, caffeine mouth rinsing, and nature exposure showed potential to mitigate the detrimental effects on sport-specific performance, particularly in shooting accuracy (ES = 0.591; p = 0.001), decision-making accuracy (ES = 0.553; p = 0.006), and reaction time (ES = -0.871; p < 0.001), however, not in completion time (ES = -0.302; p = 0.182). This review underscores the unique roles of self-regulatory resources and directed attention. Nonetheless, a cautious interpretation of the findings is warranted given the paucity of investigations involving potential interventions in numerous other sports, such as volleyball, Australian football, cricket, and boxing.
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Affiliation(s)
- He Sun
- School of Physical Education, Henan University, Kaifeng, Henan Province, China
| | - Kim Geok Soh
- Department of Sport Studies, Faculty of Education Studies, Universiti Putra Malaysia, Seri Kembangan, Selangor, Malaysia
| | - Alireza Mohammadi
- Faculty of Business Management, City University Malaysia, Petaling Jaya, Selangor, Malaysia
| | - Zakaria Toumi
- School of Psychology, Northeast Normal University, Changchun, China
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Sun H, Soh KG, Mohammadi A, Toumi Z, Zhang L, Ding C, Gao X, Tian J. Counteracting mental fatigue for athletes: a systematic review of the interventions. BMC Psychol 2024; 12:67. [PMID: 38336843 PMCID: PMC10854164 DOI: 10.1186/s40359-023-01476-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 11/30/2023] [Indexed: 02/12/2024] Open
Abstract
The deleterious effects of mental fatigue (MF) on athletes have been carefully studied in various sports, such as soccer, badminton, and swimming. Even though many researchers have sought ways to ameliorate the negative impact of MF, there is still a lack of studies that review the interventions used to counteract MF among athletes. This review aims to report the current evidence exploring the effects of interventions on MF and sport-specific performance, including sport-specific motor performance and perceptual-cognitive skills. Web of Science, Scopus, PubMed, and SPORTDicus (EBSCOhost) were combed through to find relevant publications. Additionally, the references and Google Scholar were searched for any grey literature. For the current review, we included only randomized controlled trials that involved athletes, a primary task to induce MF, interventions to counter MF with comparable protocols, and the outcomes of sport-specific motor performance and perceptual-cognitive skill. The selection criteria resulted in the inclusion of 10 articles. The manipulations of autonomous self-control exertion, person-fit, nature exposure, mindfulness, and transactional direct current stimulation showed that positive interventions counteract MF and improve sport-specific performance in different domains, including strength, speed, skill, stamina, and perceptual-cognitive skills. The selected interventions could significantly counteract MF and improve subsequent sport-specific performance. Moreover, self-regulation and attention resources showed the importance of the potential mechanisms behind the relevant interventions.
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Affiliation(s)
- He Sun
- School of Physical Education, Henan University, Kaifeng, China
| | - Kim Geok Soh
- Department of Sport Studies, Faculty of Education Studies, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Alireza Mohammadi
- Faculty of Business Management, City University Malaysia, Selangor, Malaysia
| | - Zakaria Toumi
- School of Psychology, Northeast Normal University, Changchun, China
| | - Lingling Zhang
- Department of Sport Studies, Faculty of Education Studies, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- The National Football Academy, Shandong Sport University, Jinan, China
| | - Cong Ding
- Department of Sport Studies, Faculty of Education Studies, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Xiaojuan Gao
- School of Physical Education, Henan University, Kaifeng, China
| | - Jian Tian
- School of Physical Education, Henan University, Kaifeng, China.
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Staiano W, Bonet LRS, Romagnoli M, Ring C. Mental fatigue impairs repeated sprint and jump performance in team sport athletes. J Sci Med Sport 2024; 27:105-112. [PMID: 37957039 DOI: 10.1016/j.jsams.2023.10.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 10/19/2023] [Accepted: 10/22/2023] [Indexed: 11/15/2023]
Abstract
OBJECTIVES We tested whether mental fatigue (MF), induced by a cognitively-demanding task, would impair repeated sprint ability (RSA) and repeated jump ability (RJA) performance, and whether physical fatigue and MF would impair psychomotor vigilance. DESIGN Randomized within-participant design. METHODS After establishing baseline peak countermovement jump (CMJ), 18 male participants performed 12 maximal 20-m (10-m linear + 10-m directional) repeated sprints (RSA random test) followed by 12 maximal repeated CMJs (RJA test) subsequent to 30-min Stroop task (MF) or a documentary (Control). Peak and mean running time and height, percent decrement score (Sdec), blood lactate, heart rate and RPE were measured for CMJ, RSA, and RJA tests. MF (M-VAS) and psychomotor vigilance [psychomotor vigilance test (PVT)] were measured at baseline, after each condition, and after the RSA/RJA tests. RESULTS Compared to Control, the Stroop task elevated MF (p = .001), RPE ratings (all p < .031), and mean and Sdec performance in directional (but not linear) RSA (all p < .032) and RJA tests (all p < .034). PVT score worsened after Stroop task (p = .011) but not Control, declined after RSA/RJA tests in both conditions (all p < .023) and was lower in the MF condition (p = .029). No condition differences were noted for peak (CMJ, RSA and RJA tests) performance, blood lactate, and heart rate. CONCLUSIONS MF impairs directional RSA, and RJA performance. This impairment was linked with increased RPE and without physiological changes. The progressive impairment in PVT score suggests a cumulatively negative effect of mental and physical fatigue on psychomotor vigilance.
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Affiliation(s)
- Walter Staiano
- Department of Physical Education and Sport, University of Valencia, Spain; Department of Psychology, Biological and Cognitive Psychology, University of Southern Denmark, Denmark.
| | | | - Marco Romagnoli
- Department of Physical Education and Sport, University of Valencia, Spain
| | - Christopher Ring
- School of Sport, Exercise & Rehabilitation Sciences, University of Birmingham, UK
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Wirdnam M, Ferrar K, Mayes S, MacMahon C, Cook J, Rio E. "A sprained ankle is the biggest sign of mental fatigue": A qualitative study of the perceptions and experiences of mental fatigue in professional ballet. Phys Ther Sport 2024; 65:154-161. [PMID: 38218024 DOI: 10.1016/j.ptsp.2023.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 12/05/2023] [Accepted: 12/18/2023] [Indexed: 01/15/2024]
Abstract
Mental fatigue is known to influence endurance, skill, and tactical performance in sport. Research investigating the impact of mental fatigue on tasks that combine physical, cognitive, and aesthetic performance such as professional ballet does not exist. OBJECTIVE To understand the perceptions and experiences of mental fatigue in professional ballet. DESIGN Qualitative, focus groups and semi-structured interviews. SETTING The Australian Ballet. PARTICIPANTS Thirty-nine professional ballet dancers (53% of the company) and six dance staff members aged 18 years or above (53% female). MAIN OUTCOME MEASURES N/a. RESULTS The average focus group and interview length was 48 ± 7 min and 41 ± 8 min. Key categories were; (1) Dancers and dance staff perceive that new learning contributes to mental fatigue, (2) Dancers perceive changes to their mood and perception of effort when they are mentally fatigued, and (3) Dancers and dance staff perceive that mental fatigue negatively affects their physical and cognitive performance and, increases their risk of injury. CONCLUSION This is the first study where participants associated mental fatigue with injury risk and provides a springboard to measure the impact of mental fatigue on learning, injury, and performance in professional ballet.
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Affiliation(s)
- Matthew Wirdnam
- School of Allied Health, Physiotherapy, La Trobe University, Plenty Road & Kingsbury Dr, Bundoora, VIC, 3086, Australia; The Australian Ballet, Kavanagh Street, Southbank, VIC, 3006, Australia.
| | - Katia Ferrar
- Sports & Exercise Medicine Research Centre, La Trobe University, Plenty Road & Kingsbury Dr, Bundoora, VIC, 3086, Australia; The Australian Ballet, Kavanagh Street, Southbank, VIC, 3006, Australia; South Australian Health & Medical Research Institute, North Terrace, SA, 5000, Australia
| | - Susan Mayes
- School of Allied Health, Human Services and Sport, La Trobe University, Plenty Road & Kingsbury Dr, Bundoora, VIC, 3086, Australia; The Australian Ballet, Kavanagh Street, Southbank, VIC, 3006, Australia. https://twitter.com/S_Maysey
| | - Clare MacMahon
- School of Sports & Exercise Science, La Trobe University, Plenty Road & Kingsbury Dr, Bundoora, VIC, 3086, Australia. https://twitter.com/ProfJillCook
| | - Jill Cook
- Sports & Exercise Medicine Research Centre, La Trobe University, Plenty Road & Kingsbury Dr, Bundoora, VIC, 3086, Australia
| | - Ebonie Rio
- Sports & Exercise Medicine Research Centre, La Trobe University, Plenty Road & Kingsbury Dr, Bundoora, VIC, 3086, Australia; The Australian Ballet, Kavanagh Street, Southbank, VIC, 3006, Australia. https://twitter.com/tendonpain
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8
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Russell S, Johnston RD, Stanimirovic R, Halson SL. Global practitioner assessment and management of mental fatigue and mental recovery in high-performance sport: A need for evidence-based best-practice guidelines. Scand J Med Sci Sports 2024; 34:e14491. [PMID: 37728880 DOI: 10.1111/sms.14491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 07/21/2023] [Accepted: 08/21/2023] [Indexed: 09/21/2023]
Abstract
BACKGROUND Mental fatigue and mental recovery have gained scientific attention in relation to sporting performance, yet best practice assessment and management methods are lacking. A greater understanding of current knowledge and practices in high-performance sport are necessary. OBJECTIVE To understand the contemporary knowledge, beliefs, monitoring processes, management strategies, perceived responsibility, sources of evidence, and challenges, when assessing the mental fatigue and mental recovery of athletes in high-performance sport. METHODS A mixed-methods survey approach obtained information from 156 multi-disciplinary high-performance sport practitioners. Descriptive outputs were reported and potential differences between key concepts were detected using Wilcoxon-signed rank analysis. Thematic analysis interpreted open-text responses. RESULTS Only 11.5% and 5.1% of respondents indicated they were "very" knowledgeable about mental fatigue and mental recovery, respectively. Knowledge (p < 0.001) and confidence in application (p = 0.001) were significantly greater for mental fatigue than mental recovery. Nearly all respondents perceived mental fatigue and mental recovery impacted training and competition performance, with a greater negative impact during competition (p < 0.001). A limited number of respondents reported deliberate assessment (31.1%) or management (51.2%) of mental fatigue and mental recovery. A combination of sources of evidence were used to inform practice, with common challenges to implementation including staff knowledge, athlete-buy in, time-availability, and a lack of evidence. Practitioners reported that assessing and managing mental fatigue and mental recovery was multi-disciplinary in nature. CONCLUSION Practitioners reported that mental fatigue and mental recovery did impact performance, yet this was not reflected in the implementation of evidence-based assessment and management practices in high-performance sport.
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Affiliation(s)
- S Russell
- Sports Performance, Recovery, Injury and New Technologies Research Centre (SPRINT), Faculty of Health Sciences, Australian Catholic University, Brisbane, Queensland, Australia
- Performance Services, Australian Institute of Sport, Bruce, Australian Capital Territory, Australia
- Sport Performance Innovation and Knowledge Excellence (SPIKE), Queensland Academy of Sport, Nathan, Queensland, Australia
| | - R D Johnston
- Sports Performance, Recovery, Injury and New Technologies Research Centre (SPRINT), Faculty of Health Sciences, Australian Catholic University, Brisbane, Queensland, Australia
- Carnegie Applied Rugby Research Centre (CARR), Institute for Sport, Physical Activity and Leisure, Leeds Beckett University, Leeds, UK
| | - R Stanimirovic
- Performance Services, Australian Institute of Sport, Bruce, Australian Capital Territory, Australia
| | - S L Halson
- Sports Performance, Recovery, Injury and New Technologies Research Centre (SPRINT), Faculty of Health Sciences, Australian Catholic University, Brisbane, Queensland, Australia
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Rollo I, Williams C. Carbohydrate Nutrition and Skill Performance in Soccer. Sports Med 2023; 53:7-14. [PMID: 37421586 PMCID: PMC10721660 DOI: 10.1007/s40279-023-01876-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/08/2023] [Indexed: 07/10/2023]
Abstract
In soccer, players must perform a variety of sport-specific skills usually during or immediately after running, often at sprint speed. The quality of the skill performed is likely influenced by the volume of work done in attacking and defending over the duration of the match. Even the most highly skilful players succumb to the impact of fatigue both physical and mental, which may result in underperforming skills at key moments in a match. Fitness is the platform on which skill is performed during team sport. With the onset of fatigue, tired players find it ever more difficult to successfully perform basic skills. Therefore, it is not surprising that teams spend a large proportion of their training time on fitness. While acknowledging the central role of fitness in team sport, the importance of team tactics, underpinned by spatial awareness, must not be neglected. It is well established that a high-carbohydrate diet before a match and, as a supplement during match play, helps delay the onset of fatigue. There is some evidence that players ingesting carbohydrate can maintain sport-relevant skills for the duration of exercise more successfully compared with when ingesting placebo or water. However, most of the assessments of sport-specific skills have been performed in a controlled, non-contested environment. Although these methods may be judged as not ecologically valid, they do rule out the confounding influences of competition on skill performance. The aim of this brief review is to explore whether carbohydrate ingestion, while delaying fatigue during match play, may also help retain sport soccer-specific skill performance.
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Affiliation(s)
- Ian Rollo
- Gatorade Sports Science Institute, PepsiCo Life Sciences, Global R&D, Leicestershire, UK.
- School of Sports Exercise and Health Sciences, Loughborough University, Loughborough, UK.
| | - Clyde Williams
- School of Sports Exercise and Health Sciences, Loughborough University, Loughborough, UK
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Russell S, Halson SL, Jenkins DG, Rynne SB, Roelands B, Kelly VG. Thinking About Elite Performance: The Experience and Impact of Mental Fatigue in Elite Sport Coaching. Int J Sports Physiol Perform 2023:1-7. [PMID: 37311561 DOI: 10.1123/ijspp.2023-0033] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 04/12/2023] [Accepted: 05/06/2023] [Indexed: 06/15/2023]
Abstract
PURPOSE Mental fatigue causes decreases in aspects of athletes' performance. Elite coaches commonly undertake cognitively demanding tasks and are seemingly at similar risk of subsequent performance impairment. However, elite sport coaches' experiences of mental fatigue, alongside other markers of psychobiological stress, have yet to be quantified. METHODS Three elite coaching and performance staff (2 women and 1 man) provided 100-mm visual analog scale ratings of mental fatigue, physical fatigue, readiness to perform, and salivary samples for later cortisol (sCort) and alpha-amylase (sAA) analysis. Data were obtained on the same morning each week across a 16-week preseason. Data were subset by individual coach for descriptive and repeated-measures correlational analyses. RESULTS Fluctuating mental fatigue was observed over the 16 weeks (min-max; coach 1 = 25-86 AU; coach 2 = 0-51 AU; and coach 3 = 15 - 76 AU). Elevated levels of mental fatigue were reported at multiple time points, with individual variability observed. sCort (in nanomoles per liter), sAA (in micromoles per liter), and sAA:sCort indicated that coaches experienced psychophysiological stress (min-max; coach 1 sCort = 8.42-17.31, sAA = 52.40-113.06, sAA:sCort = 3.20-12.80; coach 2 sCort = 4.20-9.70, sAA = 158.80-307.20, sAA:sCort = 21.10-61.70; and coach 3 sCort = 6.81-19.66, sAA = 86.55-495.85, sAA:sCort = 4.90-35.50). A significant inverse relationship between mental fatigue and readiness to perform (r = -.44 [-.64 to -.17], P = .002) was identified. CONCLUSIONS Elite sport coaches report elevated instances of mental fatigue during a preseason training period. Those involved in elite sports should act to understand the presence and potential subsequent impacts of staff mental fatigue and consider management or mitigation strategies. Optimization of the cognitive performance of coaches and performance staff presents as a potential source of competitive advantage.
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Affiliation(s)
- Suzanna Russell
- Sports Performance, Recovery, Injury and New Technologies (SPRINT) Research Centre, Faculty of Health Sciences, Australian Catholic University, Brisbane, QLD,Australia
- Sport, Performance, Innovation and Knowledge Excellence, Queensland Academy of Sport, Brisbane, QLD,Australia
- School of Human Movement & Nutrition Sciences, University of Queensland, Brisbane, QLD,Australia
| | - Shona L Halson
- Sports Performance, Recovery, Injury and New Technologies (SPRINT) Research Centre, Faculty of Health Sciences, Australian Catholic University, Brisbane, QLD,Australia
| | - David G Jenkins
- School of Human Movement & Nutrition Sciences, University of Queensland, Brisbane, QLD,Australia
- School of Health and Sport Sciences, University of the Sunshine Coast, Brisbane, QLD,Australia
- Applied Sports Science Technology and Medicine Research Centre, Swansea University, Swansea,United Kingdom
| | - Steven B Rynne
- School of Human Movement & Nutrition Sciences, University of Queensland, Brisbane, QLD,Australia
| | - Bart Roelands
- Faculty of Physical Education and Physiotherapy, Department of Human Physiology and Sports Medicine, Vrije Universiteit Brussel, Brussels,Belgium
- Brussels Human Robotics Research Center (Brubotics), Vrije Universiteit Brussel, Brussels,Belgium
| | - Vincent G Kelly
- School of Exercise & Nutrition Sciences, Queensland University of Technology, Brisbane, QLD,Australia
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Díaz-García J, García-Calvo T, Manzano-Rodríguez D, López-Gajardo MÁ, Parraca JA, Ring C. Brain endurance training improves shot speed and accuracy in grassroots padel players. J Sci Med Sport 2023:S1440-2440(23)00127-5. [PMID: 37349253 DOI: 10.1016/j.jsams.2023.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/25/2023] [Accepted: 06/02/2023] [Indexed: 06/24/2023]
Abstract
OBJECTIVES Evidence that mental fatigue impairs sport performance has created a demand for countermeasures. We examined the effects of brain endurance training, a form of fatigue-inoculation, on shot performance in grassroots padel players. DESIGN A pre-, mid- and post-test design, with participants randomized to brain endurance training (n = 30) or control (n = 31) groups. METHODS During testing, participants completed a Padel Stroke Performance Test, before and after a demanding 30-min cognitive task (Stroop). Training comprised 3 sessions/week for 6 weeks. In each training session, participants completed 10-min warm-up, 15-min technical drills, 15-min tactical drills, and 20-min simulated games. These physical activities were intermixed with short 4-min periods of Stroop (brain endurance training group) or rest (control group) totaling 20-min. Performance was measured by shot speed and accuracy of padel strokes. Mental fatigue indices were measured before and after the Stroop task using a visual analog scale rating, a psychomotor vigilance task, and a go/no-go task. RESULTS During testing, the 30-min Stroop task elicited a state of mental fatigue, confirmed by higher subjective ratings, slower responses during the psychomotor vigilance task, and slower saccade latencies during the go/no go task. Compared to pre-testing, in mid- and post-testing, the brain endurance training group hit progressively faster and more accurate padel shots after the Stroop task compared to controls. CONCLUSIONS Brain endurance training enhanced skill-based psychomotor performance when fatigued compared to standard padel training. Brain endurance training is a countermeasure that promotes mental fatigue durability.
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Affiliation(s)
| | - Tomás García-Calvo
- Faculty of Sport Sciences, University of Extremadura, Spain. https://twitter.com/tgarciacalvo
| | - David Manzano-Rodríguez
- Faculty of Sport Sciences, University of Extremadura, Spain. https://twitter.com/manzano_david
| | | | - José Alberto Parraca
- Departamento de Desporto e Saúde, Escola de Saúde e Desenvolvimiento Humano, University of Évora, Portugal; Comprehensive Health Research Centre (CHRC), University of Évora, Portugal
| | - Christopher Ring
- School of Sport, Exercise & Rehabilitation Sciences, University of Birmingham, UK.
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12
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Lopes TR, Fortes LDS, Smith MR, Roelands B, Marcora SM. Editorial: Mental fatigue and sport: from the lab to the field. Front Sports Act Living 2023; 5:1213019. [PMID: 37229360 PMCID: PMC10203958 DOI: 10.3389/fspor.2023.1213019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 04/27/2023] [Indexed: 05/27/2023] Open
Affiliation(s)
- Thiago Ribeiro Lopes
- Laboratory of Exercise Physiology at Olympic Center of Training and Research, Department of Physiology, Federal University of São Paulo, São Paulo, Brazil
- São Paulo Association for Medicine Development, São Paulo, Brazil
- Graduate Program in Translational Medicine, Department of Medicine, Paulista School of Medicine, Federal University of São Paulo, São Paulo, Brazil
| | | | - Mitchell Robert Smith
- Discipline of Exercise and Sports Science, College of Engineering, Science and Environment, University of Newcastle, Ourimbah, NSW, Australia
- ActiveLiving Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Bart Roelands
- Human Physiology and Sports Physiotherapy Research Group, Vrije Universiteit Brussel, Brussels, Belgium
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13
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Habay J, Uylenbroeck R, Van Droogenbroeck R, De Wachter J, Proost M, Tassignon B, De Pauw K, Meeusen R, Pattyn N, Van Cutsem J, Roelands B. Interindividual Variability in Mental Fatigue-Related Impairments in Endurance Performance: A Systematic Review and Multiple Meta-regression. SPORTS MEDICINE - OPEN 2023; 9:14. [PMID: 36808018 PMCID: PMC9941412 DOI: 10.1186/s40798-023-00559-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 02/06/2023] [Indexed: 02/22/2023]
Abstract
BACKGROUND The negative effect of mental fatigue (MF) on physical performance has recently been questioned. One reason behind this could lie in the interindividual differences in MF-susceptibility and the individual features influencing them. However, the range of individual differences in mental fatigue-susceptibility is not known, and there is no clear consensus on which individual features could be responsible for these differences. OBJECTIVE To give an overview of interindividual differences in the effects of MF on whole-body endurance performance, and individual features influencing this effect. METHODS The review was registered on the PROSPERO database (CRD42022293242). PubMed, Web of Science, SPORTDiscus and PsycINFO were searched until the 16th of June 2022 for studies detailing the effect of MF on dynamic maximal whole-body endurance performance. Studies needed to include healthy participants, describe at least one individual feature in participant characteristics, and apply at least one manipulation check. The Cochrane crossover risk of bias tool was used to assess risk of bias. The meta-analysis and regression were conducted in R. RESULTS Twenty-eight studies were included, with 23 added to the meta-analysis. Overall risk of bias of the included studies was high, with only three presenting an unclear or low rating. The meta-analysis shows the effect of MF on endurance performance was on average slightly negative (g = - 0.32, [95% CI - 0.46; - 0.18], p < 0.001). The multiple meta-regression showed no significant influences of the included features (i.e. age, sex, body mass index and physical fitness level) on MF-susceptibility. CONCLUSIONS The present review confirmed the negative impact of MF on endurance performance. However, no individual features influencing MF-susceptibility were identified. This can partially be explained by the multiple methodological limitations such as underreporting of participant characteristics, lack of standardization across studies, and the restricted inclusion of potentially relevant variables. Future research should include a rigorous description of multiple different individual features (e.g., performance level, diet, etc.) to further elucidate MF mechanisms.
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Affiliation(s)
- Jelle Habay
- grid.8767.e0000 0001 2290 8069Human Physiology and Sports Physiotherapy Research Group, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium ,grid.16499.330000 0004 0645 1099Vital Signs and Performance Monitoring Research Unit, LIFE Department, Royal Military Academy, Brussels, Belgium ,grid.434261.60000 0000 8597 7208Research Foundation Flanders (FWO), Brussels, Belgium
| | - Robin Uylenbroeck
- grid.8767.e0000 0001 2290 8069Human Physiology and Sports Physiotherapy Research Group, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
| | - Ruben Van Droogenbroeck
- grid.8767.e0000 0001 2290 8069Human Physiology and Sports Physiotherapy Research Group, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
| | - Jonas De Wachter
- grid.8767.e0000 0001 2290 8069Human Physiology and Sports Physiotherapy Research Group, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
| | - Matthias Proost
- grid.8767.e0000 0001 2290 8069Human Physiology and Sports Physiotherapy Research Group, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
| | - Bruno Tassignon
- grid.8767.e0000 0001 2290 8069Human Physiology and Sports Physiotherapy Research Group, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium ,grid.8767.e0000 0001 2290 8069BruBotics, Vrije Universiteit Brussel, Brussels, Belgium
| | - Kevin De Pauw
- grid.8767.e0000 0001 2290 8069Human Physiology and Sports Physiotherapy Research Group, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium ,grid.8767.e0000 0001 2290 8069BruBotics, Vrije Universiteit Brussel, Brussels, Belgium
| | - Romain Meeusen
- grid.8767.e0000 0001 2290 8069Human Physiology and Sports Physiotherapy Research Group, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium ,grid.8767.e0000 0001 2290 8069BruBotics, Vrije Universiteit Brussel, Brussels, Belgium
| | - Nathalie Pattyn
- grid.8767.e0000 0001 2290 8069Human Physiology and Sports Physiotherapy Research Group, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium ,grid.16499.330000 0004 0645 1099Vital Signs and Performance Monitoring Research Unit, LIFE Department, Royal Military Academy, Brussels, Belgium
| | - Jeroen Van Cutsem
- grid.8767.e0000 0001 2290 8069Human Physiology and Sports Physiotherapy Research Group, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium ,grid.16499.330000 0004 0645 1099Vital Signs and Performance Monitoring Research Unit, LIFE Department, Royal Military Academy, Brussels, Belgium
| | - Bart Roelands
- Human Physiology and Sports Physiotherapy Research Group, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Brussels, Belgium. .,BruBotics, Vrije Universiteit Brussel, Brussels, Belgium.
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14
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Díaz-García J, Filipas L, La Torre A, Gómez-Rivera J, Rubio-Morales A, García-Calvo T. Mental fatigue changes from regular season to play-offs in semiprofessional soccer: A comparison by training days. Scand J Med Sci Sports 2023; 33:712-724. [PMID: 36601789 DOI: 10.1111/sms.14301] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/13/2022] [Accepted: 12/28/2022] [Indexed: 01/06/2023]
Abstract
The main purpose was to compare by each training the mental load and fatigue reported by semiprofessional soccer players comparing between regular season phase and the play-offs. Fifty-three players (Mage = 24.59 years) for two teams participated during the 2020/21 season. Mental load was measured with a Likert questionnaire. Mental fatigue was quantified with a Visual Analogue Scale. Four trainings were recorded each week (Monday = MD+1, Wednesday = MD-4, Thursday = MD-3 and Saturday = MD-1), with a competitive match on Sunday across 10 weeks (five dates of regular season - five dates of play-offs). A Linear Mixed Model was performed with R-studio, using the training days and the competitive phase as independent variables. The influence of time played as co-variable was also checked. Results showed MD+1 as the more mentally fatiguing day in both phases, although MD-4 were the training with higher mental load reported (p = 0.001). Comparing phases, mental fatigue was significantly higher during the play-offs (p = 0.037). With regard time played, players that did not usually play showed a decrease in mental load during the play-offs. Then, we recommend coaches to use recovery strategies for mental fatigue, avoid mentally fatiguing tasks close to competition and considerer the time played as a factor which may contribute to individual differences in player mental fatigue.
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Affiliation(s)
- Jesús Díaz-García
- Faculty of Sport Sciences, University of Extremadura, Cáceres, Spain
| | - Luca Filipas
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy.,Department of Endocrinology, Nutrition and Metabolic Diseases, IRCCS MultiMedica, Milan, Italy
| | - Antonio La Torre
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy.,IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
| | | | - Ana Rubio-Morales
- Faculty of Sport Sciences, University of Extremadura, Cáceres, Spain
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15
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Mental Fatigue: The Cost of Cognitive Loading on Weight Lifting, Resistance Training, and Cycling Performance. Int J Sports Physiol Perform 2023; 18:465-473. [PMID: 36898388 DOI: 10.1123/ijspp.2022-0356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 12/06/2022] [Accepted: 01/03/2023] [Indexed: 03/11/2023]
Abstract
PURPOSE Mental fatigue (MF) can impair physical performance in sport. We tested the hypothesis that cognitive load alone, and intermixed with standard resistance training, would induce MF, increase rating of perceived exertion (RPE), alter perception of weight lifting and training, and impair cycling time-trial performance. METHODS This 2-part study employed a within-participant design. In part 1, after establishing leg-extension 1-repetition maximum (1RM), 16 participants lifted and briefly held weights at 20%, 40%, 60%, and 80% of 1RM. RPE and electromyography (EMG) were measured for each lift. During the testing sessions, participants completed cognitive tasks (MF condition) or watched neutral videos (control condition) for 90 minutes before lifting the weights. In part 2, they completed submaximal resistance training comprising 6 weight training exercises followed by a 20-minute cycling time trial. In the MF condition, they completed cognitive tasks before and between weight training exercises. In the control condition, they watched neutral videos. Mood (Brunel Mood Scale), workload (National Aeronautics and Space Administration Task Load Index), MF-visual analogue scale (MF-VAS), RPE, psychomotor vigilance, distance cycled, power output, heart rate, and blood lactate were measured. RESULTS In part 1, the cognitive task increased lift-induced RPE (P = .011), increased MF-VAS (P = .002), and altered mood (P < .001) compared with control. EMG did not differ between conditions. In part 2, the cognitive tasks increased RPE (P < .001), MF-VAS (P < .001), and mental workload (P < .001), but reduced cycling time-trial power (P = .032) and distance (P = .023) compared with control. Heart rate and blood lactate did not differ between conditions. CONCLUSION A state of MF induced by cognitive load, alone or intermixed with physical load, increased RPE during weight lifting and training and impaired subsequent cycling performance.
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16
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Sun H, Soh KG, Roslan S, Wazir MRWN, Mohammadi A, Ding C, Zhao Z. Nature exposure might be the intervention to improve the self-regulation and skilled performance in mentally fatigue athletes: A narrative review and conceptual framework. Front Psychol 2022; 13:941299. [PMID: 35983203 PMCID: PMC9378859 DOI: 10.3389/fpsyg.2022.941299] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 07/04/2022] [Indexed: 11/13/2022] Open
Abstract
Background Due to causing inability of self-regulation (ego depletion) and executive functions such as directed attention and visual searching for relevant information (e.g., the ball location and the position of teammates), mental fatigue impairs skilled performance in various sports. On the other hand, natural scenes could improve directed attention, which may considerably benefit visual searching ability and self-regulation. However, nature exposure as a potential intervention to improve skilled performance among mentally fatigued athletes has not been discussed thoroughly. Purpose To propose the potential intervention for the impairment of skilled performance among mentally fatigued athletes and generate a framework for future studies. Methods A narrative review was applied to search broadly across disciplines, retrieving literature from several databases (PubMed, Web of Science, Scopus, and EBSCOhost). Results Thirty-three works of literature including 39 experiments (mental fatigue 15; ego depletion 5; and nature exposure 19) were obtained. Finally, a conceptual framework was built regarding the effect of nature exposure intervention on skilled performance in athletes for future studies. Conclusion Three theories (the psychobiological model of exercise performance, the strength model of self-regulation, and attention restoration theory) could be potentially integrated to be a conceptual framework and explain the mechanism of preventing prior mental exertion (e.g., mental fatigue and ego depletion). Future studies could examine more on the duration of the intervention.
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Affiliation(s)
- He Sun
- School of Physical Education Institute (Main Campus), Zhengzhou University, Zhengzhou, China
| | - Kim G. Soh
- Department of Sport Studies, Faculty of Education Studies, Universiti Putra Malaysia, Selangor, Malaysia
| | - Samsilah Roslan
- Department of Foundation of Education, Faculty of Education Studies, Universiti Putra Malaysia, Seri Kembangan, Selangor, Malaysia
| | | | - Alireza Mohammadi
- Faculty of Business Management, City University Malaysia, Seri Kembangan, Selangor, Malaysia
| | - Cong Ding
- Department of Sport Studies, Faculty of Education Studies, Universiti Putra Malaysia, Selangor, Malaysia
| | - Zijian Zhao
- School of Physical Education Institute (Main Campus), Zhengzhou University, Zhengzhou, China
- *Correspondence: Zijian Zhao,
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17
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Do Cognitive, Physical, and Combined Tasks Induce Similar Levels of Mental Fatigue? Testing the Effects of Different Moderating Variables. Motor Control 2022; 26:630-648. [PMID: 35905976 DOI: 10.1123/mc.2022-0042] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/26/2022] [Accepted: 06/19/2022] [Indexed: 11/18/2022]
Abstract
Experts have highlighted the importance of coaches knowing the level of mental fatigue (MF) induced by different tasks. This study aimed to compare the mentally fatiguing nature of cognitive, physical, and combined tasks and, additionally, assess the effect of different moderating variables on MF. Twenty-three physically active (16 males: Mage = 24 years; seven females: Mage = 22.57 years) participants performed three experimental sessions: (a) physically fatiguing: 30 min of cycloergometer work (at 65%-75% of maximum heart rate), (b) mentally fatiguing: 30 min of an incongruent Stroop task, and (c) mixed fatiguing: 30 min of combining the physically and mentally fatiguing protocols. Subjective MF (visual analog scale), reaction time (psychomotor vigilance task), and cognitive performance (Stroop) were measured throughout the different protocols. Results showed significant increments in subjective MF after all tasks, with the mental and mixed protocols showing significantly higher increases. Only the mentally fatiguing protocol caused significant impairments in reaction time. No significant effects of sex, years of experience, or degree of mental toughness were observed. These results suggest that the use of all these tasks, and especially the mentally fatiguing exercises, should be avoided immediately prior to competitions due to the negative consequences of MF on performance. Moreover, this effect seems to be independent of the sex, years of experience, or mental toughness of athletes.
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18
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Sun H, Soh KG, Roslan S, Norjali Wazir MRW, Liu F, Zhao Z. The Counteractive Effect of Self-Regulation-Based Interventions on Prior Mental Exertion: A Systematic Review of Randomised Controlled Trials. Brain Sci 2022; 12:brainsci12070896. [PMID: 35884703 PMCID: PMC9313235 DOI: 10.3390/brainsci12070896] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/29/2022] [Accepted: 07/06/2022] [Indexed: 02/04/2023] Open
Abstract
Background: Many investigations have been performed on the effects of mental exertion that consumes self-regulatory resources and then affects physical and/or cognitive performance later on. However, the effect of manipulating self-regulation and interventions to attenuate this negative effect remains unclear. Moreover, there is continuous controversy regarding the resource model of self-regulation. Objective: We conducted a systematic review to assess the literature on manipulating self-regulation based on four ingredients (standard, monitoring, strength, and motivation) in order to counter mental exertion and improve physical and/or cognitive performance. The results provide more insight into the resource model. Method: A thorough search was conducted to extract the relevant literature from several databases, as well as Google Scholar, and the sources from the references were included as grey literature. A self-regulation intervention compared to a control condition, a physical and/or cognitive task, and a randomised controlled trial were selected. Result: A total of 39 publications were included. Regarding the four components of self-regulation, the interventions could mainly be divided into the following: (i) standard: implementation intervention; (ii) monitoring: biofeedback and time monitoring; (iii) strength: repeated exercise, mindfulness, nature exposure, and recovery strategies; (iv) motivation: autonomy-supportive and monetary incentives. The majority of the interventions led to significant improvement in subsequent self-regulatory performance. In addition, the resource model of self-regulation and attention-restoration theory were the most frequently used theories and supported relevant interventions. Conclusion: In line with the resource model, manipulating the four components of self-regulation can effectively attenuate the negative influence of mental exertion. The conservation proposed in the strength model of self-regulation was supported in the current findings to explain the role of motivation in the self-regulation process. Future studies can focus on attention as the centre of the metaphorical resource in the model.
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Affiliation(s)
- He Sun
- School of Physical Education Institute (Main Campus), Zhengzhou University, Zhengzhou 450001, China;
| | - Kim Geok Soh
- Department of Sport Studies, Faculty of Education Studies, Universiti Putra Malaysia, Selangor 43400, Malaysia; (K.G.S.); (M.R.W.N.W.)
| | - Samsilah Roslan
- Department of Foundation of Education, Faculty of Education Studies, Universiti Putra Malaysia, Selangor 43400, Malaysia;
| | - Mohd Rozilee Wazir Norjali Wazir
- Department of Sport Studies, Faculty of Education Studies, Universiti Putra Malaysia, Selangor 43400, Malaysia; (K.G.S.); (M.R.W.N.W.)
| | - Fang Liu
- Department of Social Work, Zhongyuan University of Technology, Zhengzhou 451191, China;
| | - Zijian Zhao
- School of Physical Education Institute (Main Campus), Zhengzhou University, Zhengzhou 450001, China;
- Correspondence:
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19
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A drop in cognitive performance, whodunit? Subjective mental fatigue, brain deactivation or increased parasympathetic activity? It's complicated! Cortex 2022; 155:30-45. [DOI: 10.1016/j.cortex.2022.06.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 05/18/2022] [Accepted: 06/08/2022] [Indexed: 11/18/2022]
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