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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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http://dx.doi.org/10.1186/s40798-023-00559-7 | DOI Listing |
Am Heart J
September 2025
Institute of Sports Medicine and Science, National Italian Olympic Committee, Largo Piero Gabrielli, 1 - 00197 Rome, Italy.
Background: Athlete's heart, characterized by cardiac chambers adaptations to exercise has some diagnostic overlaps with dilated cardiomyopathy (DCM). In the setting of differential diagnosis, myocardial work indexes (MWI), afterload-independent tool, could be helpful to identify early subclinical alterations. The aim of our study was to assess the utility of MWI in athletes with mildly reduced left ventricular ejection fraction (LVEF).
View Article and Find Full Text PDFExp Physiol
September 2025
Department of Sports Science and Clinical Biomechanics, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark.
High-altitude training is widely adopted by endurance athletes with the aim of increasing total haemoglobin mass (tHb) and thereby endurance exercise performance. However, divergent effects on tHb and exercise performance have been reported in athletes commencing altitude camps with initial high baseline levels for tHb, questioning the efficacy of in-season interventions in elite athletes. Therefore, haematological adaptations and exercise performance were evaluated in 12 elite cyclists completing an in-season 'Live High-Train High' (LHTH) altitude camp (21 days at 3000 m) immediately after participating in the national championships.
View Article and Find Full Text PDFNanoscale
September 2025
College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, China.
Proton exchange membrane water electrolysis (PEMWE) is regarded as the most promising technique for the sustainable production of green hydrogen due to its multiple advantages such as high working current density and high hydrogen purity. However, the anodic oxygen evolution reaction (OER) has a significant impact on the overall efficiency of the electrolytic water reaction due to its sluggish kinetics, which has prompted the search for catalysts possessing both high activity and durability. Iridium oxide exhibits excellent stability under acidic conditions but has poor catalytic activity, leading to its inability to meet the strict requirements of large-scale industrial applications.
View Article and Find Full Text PDFERJ Open Res
September 2025
Respiratory Rehabilitation Unit, Istituti Clinici Scientifici Maugeri IRCCS, Institute of Lumezzane, Brescia, Italy.
Background: In patients with moderate COPD, response to pulmonary rehabilitation including exercise training varies according to the presence of peripheral muscle fatigue (pMF) of quadriceps. This study investigates the role of pMF in predicting pulmonary rehabilitation outcomes in more severe COPD patients who have already developed chronic respiratory failure (COPD-CRF).
Methods: A analysis of a prospective randomised controlled trial was performed at Istituti Clinici Scientifici Maugeri Lumezzane (Brescia, Italy), involving 30 COPD-CRF patients undergoing a pulmonary rehabilitation programme comprising 20 endurance training sessions.
J Sci Med Sport
August 2025
Sports Performance, Recovery, Injury and New Technologies Research Centre, Australian Catholic University, Australia; School of Behavioural and Health Sciences, Australian Catholic University, Brisbane, Australia.
Objectives: This systematic review and meta-analysis examined the effectiveness of lumbo-pelvic-hip complex strengthening and/or stabilisation exercises, with and without isolated pelvic floor muscle training, on postpartum pelvic floor health. Specifically, effects on pelvic floor muscle strength, endurance, activity, and pelvic floor dysfunction symptom severity were analysed.
Design: A systematic review and meta-analysis of randomised controlled trials was conducted.