Article
Sport Sciences
Rafael A. Azevedo, Fabio Milioni, Juan M. Murias, Romulo Bertuzzi, Guillaume Y. Millet
Summary: This study investigated the dynamic changes in muscle O2 saturation, power output, and EMG during different phases of a cycling time trial, and found that fast-start and even-pace phases had similar performance fatigability etiology, while the end-spurt phase showed further impairments in contractile function. The abrupt changes in SmO2 and EMG/PO due to high exercise intensity during the end-spurt phase may have contributed to the maximal decline in contractile function at the finish line.
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
(2021)
Article
Sport Sciences
Guillaume P. Ducrocq, Thomas J. Hureau, Tina Bogseth, Olivier Meste, Gregory M. Blain
Summary: The study found that professional cyclists showed better performance and slower recovery from neuromuscular fatigue compared to moderately trained cyclists in repeated cycling time trials of various intensities/durations.
MEDICINE & SCIENCE IN SPORTS & EXERCISE
(2021)
Review
Environmental Sciences
Jose Francisco Tornero-Aguilera, Jorge Jimenez-Morcillo, Alejandro Rubio-Zarapuz, Vicente J. Clemente-Suarez
Summary: Fatigue in exercise is a multifactorial issue, involving central and peripheral fatigue and being influenced by gender and psychological factors. Understanding the mechanism of fatigue is essential for prescribing appropriate training loads.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Sport Sciences
Fabio Milioni, Rafael A. Azevedo, Alessandro M. Zagatto, Guillaume Y. Millet
Summary: The study found that cycling repeated sprints induce significant fatigue, particularly at the peripheral level, which is fully restored after 48 hours of recovery.
MEDICINE & SCIENCE IN SPORTS & EXERCISE
(2021)
Article
Sport Sciences
Faizal A. Manaf, Jeremiah J. Peiffer, Garth L. Maker, Timothy J. Fairchild
Summary: Acute BCAA supplementation significantly improved cycling performance without notable changes in neuromuscular parameters compared to placebo, and was associated with reduced perceived exertion.
JOURNAL OF SCIENCE AND MEDICINE IN SPORT
(2021)
Article
Biology
P. G. Couto, M. D. Silva-Cavalcante, B. Mezencio, R. A. Azevedo, R. Cruz, R. Bertuzzi, A. E. Lima-Silva, M. A. P. D. Kiss
Summary: This study examined the effects of caffeine ingestion on endurance performance and neuromuscular fatigue during closed- and open-loop exercises. The results showed that caffeine improved endurance performance in both exercise modes and did not affect central and peripheral fatigue development.
BRAZILIAN JOURNAL OF MEDICAL AND BIOLOGICAL RESEARCH
(2022)
Article
Physiology
Julie Chambault, Gregorine Grand, Bengt Kayser
Summary: The study showed that respiratory muscle endurance training has a greater effect on improving cycling performance in women compared to men, especially in hypoxic conditions.
FRONTIERS IN PHYSIOLOGY
(2021)
Article
Nutrition & Dietetics
Jung-Piao Tsao, Jeffrey R. Bernard, Tse-Hsin Tu, Hsiu-Chen Hsu, Chia-Chen Chang, Su-Fen Liao, I-Shiung Cheng
Summary: The effects of garlic supplementation on 40-km cycling time trial performance, exercise-induced oxidative stress, and inflammatory responses were investigated. The study found that 4-week oral garlic supplementation increased overall antioxidant capacity, attenuated oxidative stress, inflammation, and muscle damage during the cycling exercise, but had no ergogenic effect on cycling performance in healthy males.
JOURNAL OF THE INTERNATIONAL SOCIETY OF SPORTS NUTRITION
(2023)
Article
Physiology
Ewan R. Williams, James McKendry, Paul T. Morgan, Leigh Breen
Summary: The study showed that high-pressure compression garments can enhance multiday exercise performance, especially in situations with limited recovery time.
INTERNATIONAL JOURNAL OF SPORTS PHYSIOLOGY AND PERFORMANCE
(2021)
Article
Hospitality, Leisure, Sport & Tourism
Romulo Bertuzzi, Marcos D. Silva-Cavalcante, Patricia Guimaraes Couto, Rafael de Almeida Azevedo, Daniel Boari Coelho, Alessandro Zagatto, Adriano Eduardo Lima-Silva, Guillaume Y. Millet
Summary: The study found that previous exhaustive upper body exercise had a negative impact on performance during a 4-km cycling time-trial, primarily due to increased perception of effort rather than neuromuscular fatigue.
RESEARCH QUARTERLY FOR EXERCISE AND SPORT
(2021)
Article
Environmental Sciences
Nicola Giovanelli, Mirco Floreani, Filippo Vaccari, Stefano Lazzer
Summary: The study found that after 15 minutes of downhill running, athletes had decreased MVCt, primarily due to peripheral rather than central alterations. During low-intensity downhill running exercise, muscle fatigue and exercise-induced muscle damage may contribute to the development of O2 and HR drift.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2021)
Article
Physiology
Nathan Townsend, Franck Brocherie, Gregoire P. Millet, Olivier Girard
Summary: Increasing severity of normobaric hypoxia, up to an equivalent elevation of 3600 m, can increase indices of peripheral fatigue but does not impact central fatigue after 'all-out' repeated-sprint running.
EXPERIMENTAL PHYSIOLOGY
(2021)
Article
Psychology, Biological
Ali Gorzi, Neda Rezapour, Sepideh Jabbari, Leila Youzbashi, Javad Salehi, Daniel Gahreman, Walter Krause Neto
Summary: Misleading information can lead to neuropsychological stress and affect human performance. This study investigated the impact of prescribing misleading intensities of resistance exercise on the number of repetitions to exhaustion and EEG and EMG responses. The results showed that greater announced intensities led to a significantly lower number of repetitions to exhaustion. Additionally, deceptive information regarding the mass of an object could affect muscle capacity in endurance-type strength training.
PHYSIOLOGY & BEHAVIOR
(2022)
Review
Sport Sciences
Joao Paulo Lopes-Silva, Carlos Rafaell Correia-Oliveira
Summary: This study investigates the isolated effects of NaHCO3 on cycling time-trial performance, and explores whether the timing of NaHCO3 ingestion can be optimized to improve performance. The findings reveal that NaHCO3 ingestion significantly enhances mean power output and performance time in cycling time trials.
EUROPEAN JOURNAL OF SPORT SCIENCE
(2023)
Article
Sport Sciences
Giorgio Varesco, Eric Luneau, Guillaume Y. Millet, Leonard Feasson, Thomas Lapole, Vianney Rozand
Summary: This study aimed to compare the performance and fatigability between young, old, and very old men during isometric, concentric, and cycling tasks. The results showed that the performance of old and very old men was lower than that of young men in all tasks, with the difference being most significant in the cycling task. Overall, old and very old men presented similar levels of force loss, alterations in voluntary activation, and twitch amplitude.
MEDICINE & SCIENCE IN SPORTS & EXERCISE
(2023)
Article
Cardiac & Cardiovascular Systems
J. C. Weavil, T. S. Thurston, T. J. Hureau, J. R. Gifford, P. A. Kithas, R. M. Broxterman, A. D. Bledsoe, J. N. Nativi, R. S. Richardson, M. Amann
Summary: HFpEF patients show similar central and peripheral fatigue development as healthy controls during exercise not limited by cardiac output at the same relative intensity. However, HFpEF patients exhibit a greater susceptibility to neuromuscular fatigue during exercise at a given absolute intensity, which impairs functional capacity. The compromised leg blood flow response likely contributes to the attenuated fatigue resistance in HFpEF patients.
AMERICAN JOURNAL OF PHYSIOLOGY-HEART AND CIRCULATORY PHYSIOLOGY
(2021)
Article
Physiology
Thomas J. Hureau, Joshua C. Weavil, Simranjit K. Sidhu, Taylor S. Thurston, Van R. Reese, Jia Zhao, Ashley D. Nelson, Nathaniel M. Birgenheier, Russell S. Richardson, Markus Amann
Summary: The study demonstrated that intravenous vitamin C administration can enhance antioxidant capacity and reduce muscle fatigue in COPD patients, but it does not improve exertional dyspnea and exercise tolerance. This suggests that compromised redox balance plays a crucial role in fatigue development in COPD, while exertional dyspnea remains a significant limiting factor for exercise tolerance in these patients.
JOURNAL OF APPLIED PHYSIOLOGY
(2021)
Article
Computer Science, Interdisciplinary Applications
Samuel Ruiperez-Campillo, Sergio Castrejon, Marcel Martinez, Raquel Cervigon, Olivier Meste, Jose Luis Merino, Jose Millet, Francisco Castells
Summary: The study proposed a noninvasive approach based on comparing atrial vectorcardiogram loops to differentiate between the most common forms of right and left macroreentrant atrial tachyarrhythmias. Results showed effectiveness in identifying different types of arrhythmias and predicting the existence and location of a slow conduction zone.
COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE
(2021)
Article
Engineering, Biomedical
Muhammad Haziq Kamarul Azman, Olivier Meste, Kushsairy Kadir, Decebal Gabriel Latcu, Nadir Saoudi, Sok-Sithikun Bun
Summary: Localization of atrial flutter circuits is a tedious task, but knowledge of this information in advance can aid clinicians in assessing and planning ablation operations. A novel classifier was developed in this study to determine flutter circuit localization based on the variability in vectorcardiographic flutter loop parameters. It was found that there are differences in variability between right and left AFL, potentially due to respiratory motion and atrial location. Respiration was not determined to be the source of discriminatory variability, suggesting that the variability may originate from the AFL itself.
BIOMEDICAL SIGNAL PROCESSING AND CONTROL
(2021)
Article
Physiology
Guillaume P. Ducrocq, Gregory M. Blain
Summary: The level of muscle activation during exercise plays a key role in determining peripheral fatigue, while the amount of work done above critical power does not have a significant impact. These findings contradict previous theories and highlight the importance of muscle activation in severe-intensity exercise-induced fatigue.
EXPERIMENTAL PHYSIOLOGY
(2022)
Article
Automation & Control Systems
Kawther Benharrath, Amine Ben Slama, Balkine Khadoumi, Mounir Sayadi, Herve Rix, Olivier Meste, Sophie Guetat, Jerome Lebrun, Marie-Noele Magnie-Mauro
Summary: Scientists have focused on understanding the behavior of gifted children and have used techniques such as EEG and cognitive events to diagnose their abilities. A new experimentation protocol was developed to analyze brain activity and extract semantic components, leading to improved identification of gifted children.
INTELLIGENT AUTOMATION AND SOFT COMPUTING
(2022)
Article
Medicine, General & Internal
Fabien Squara, Didier Scarlatti, Sok-Sithikun Bun, Pamela Moceri, Emile Ferrari, Olivier Meste, Vicente Zarzoso
Summary: This study found that Fibrillatory Wave Amplitude (FWA) is unrelated to the complexity of atrial fibrillation (AF) but is mainly determined by the amount of viable atrial myocytes. Therefore, FWA should only be referred as a marker of atrial tissue pathology.
JOURNAL OF CLINICAL MEDICINE
(2022)
Article
Neurosciences
Laura Anselmi, Guillaume P. Ducrocq, Victor Ruiz-Velasco, Sean D. Stocker, Shannon P. Higgins, Marc P. Kaufman
Summary: The role of the TRPV1 channel in evoking the exercise pressor reflex is controversial. This study found that TRPV1 is not necessary for the reflex in rats.
JOURNAL OF PHYSIOLOGY-LONDON
(2023)
Proceedings Paper
Computer Science, Interdisciplinary Applications
Pietro Bonizzi, Stef Zeemering, Joel Karel, Theo Lankveld, Ulrich Schotten, Harry Crijns, Ralf Peeters, Olivier Meste
Summary: The study investigated the recurrent activity of atrial fibrillation at the level of the body surface by measuring the similarity between consecutive atrial vectors in patients with persistent AF. Findings revealed a quasi-periodic behavior of the atrial vectors, with alternating phases of slow and fast motion. The amount of slow phases positively correlated with a higher long-term recurrent behavior of atrial propagation patterns.
2021 COMPUTING IN CARDIOLOGY (CINC)
(2021)
Proceedings Paper
Computer Science, Interdisciplinary Applications
Olivier Meste, Stef Zeemering, Joel Karel, Theo Lankveld, Ulrich Schotten, Harry Crijns, Ralf Peeters, Pietro Bonizzi
Summary: This study investigated the potential of using Body-Surface Potential Mapping (BSPM) to differentiate persistent atrial fibrillation (AF) patients based on the spatial frequency distribution of AF. Results showed that the distribution and interpretation of AF frequency on the body surface depend heavily on the method used, with higher AF frequency estimated in specific BSPM locations. Singular Spectrum Analysis (SSA) combined with frequency analysis proved effective in distinguishing recurrent AF patients from non-recurrent ones based on proximity to V1.
2021 COMPUTING IN CARDIOLOGY (CINC)
(2021)
Proceedings Paper
Engineering, Biomedical
G. Rocco, J. Lebrun, O. Meste, M-N Magnie-Mauro
Summary: Functional Near-Infrared Spectroscopy (fNIRS) is demonstrated as a successful and low-cost alternative to functional Magnetic Resonance Imaging (fMRI) for studying cerebellar hemodynamics and observing motor and cognitive processes. A simple experimental protocol using a finger tapping task revealed marked differences in activation and latencies among subjects with different levels of lateralization. Preliminary results also suggest differences in hemodynamic behavior between the brain and cerebellum, encouraging further analysis in this direction.
2021 43RD ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE & BIOLOGY SOCIETY (EMBC)
(2021)
Proceedings Paper
Engineering, Biomedical
G. Rocco, H. Rix, J. Lebrun, S. Guetat, L. Chanquoy, O. Meste, M-N Magnie-Mauro
Summary: The paper introduces an alternative method called Integral Shape Averaging (ISA) and its derivatives for extracting Event-Related Potentials. ISA is robust to varying latencies and affine transforms of shape, making it suitable for cognitive ERPs research.
2021 43RD ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE & BIOLOGY SOCIETY (EMBC)
(2021)
Meeting Abstract
Physiology
Giulia Rocco, Jerome Lebrun, Olivier Meste, Marie-Noele Magnie-Mauro
Article
Sport Sciences
Guillaume P. Ducrocq, Thomas J. Hureau, Tina Bogseth, Olivier Meste, Gregory M. Blain
Summary: The study found that professional cyclists showed better performance and slower recovery from neuromuscular fatigue compared to moderately trained cyclists in repeated cycling time trials of various intensities/durations.
MEDICINE & SCIENCE IN SPORTS & EXERCISE
(2021)
