Article
Multidisciplinary Sciences
Giovanna Zimatore, Lavinia Falcioni, Maria Chiara Gallotta, Valerio Bonavolonta, Matteo Campanella, Marco De Spirito, Laura Guidetti, Carlo Baldari
Summary: The study verified the effectiveness of Recurrence Quantification Analysis (RQA) method in determining ventilatory thresholds in individuals with different fitness levels, showing strong correlations between RQA and gas-exchange methods, with minimal errors and excellent correlation coefficients at both aerobic and anaerobic thresholds.
Article
Physiology
Joseph D. Maxwell, Daniel J. Bannell, Aine Brislane, Sophie E. Carter, Gemma D. Miller, Kirsty A. Roberts, Nicola D. Hopkins, David A. Low, Howard H. Carter, Andrew Thompson, Jurgen A. H. R. Claassen, Dick H. J. Thijssen, Helen Jones
Summary: The study found that aging is associated with a decreased cardiac baroreflex sensitivity, but dynamic cerebral autoregulation seems to remain unchanged. Sex, cardiovascular disease risk, and cardiorespiratory fitness have little effect on these changes.
EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY
(2022)
Article
Sport Sciences
Francesca Anselmi, Luna Cavigli, Antonio Pagliaro, Serafina Valente, Francesca Valentini, Matteo Cameli, Marta Focardi, Nicola Mochi, Paul Dendale, Dominique Hansen, Marco Bonifazi, Martin Halle, Flavio D'Ascenzi
Summary: The study found that the recommended exercise intensity definition based on percentages of peak HR and peak VO2 may misclassify the effective exercise intensity. Using a ventilatory threshold-based approach may be more suitable for defining an appropriate level of exercise intensity, especially in cardiac patients.
SCANDINAVIAN JOURNAL OF MEDICINE & SCIENCE IN SPORTS
(2021)
Article
Physiology
Julia Kathrin Baumgart, Gertjan Ettema, Katy E. Griggs, Victoria Louise Goosey-Tolfrey, Christof Andreas Leicht
Summary: This study compared the use of breakpoint models and no-breakpoint models to fit respiratory data obtained during upper-body modality exercise in wheelchair athletes with spinal cord injury. The results showed that both models had similar fits for determining the ventilatory threshold and respiratory compensation point.
FRONTIERS IN PHYSIOLOGY
(2021)
Article
Sport Sciences
Sidney C. Silva, Walace D. Monteiro, Felipe A. Cunha, Paulo Farinatti
Summary: This study suggests that ramp protocols for cardiopulmonary exercise testing performed with inclinations of 0-2% should be preferred over protocols with greater inclinations in healthy young adults. The maximal oxygen uptake and ventilatory thresholds were similar regardless of treadmill inclination, but the relationship between workload and oxygen uptake was closer to the identity line with smaller inclinations.
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH
(2021)
Article
Sport Sciences
Siu Nam Li, Peter Peeling, Clint Hansen, Ken Van Alsenoy, Joong Hyun Ryu, Olivier Girard
Summary: The study found that mechanical breakpoints can be detected for the vast majority of mechanical variables during treadmill graded exercise tests, yet these breakpoints are weakly related or unrelated to ventilatory thresholds.
EUROPEAN JOURNAL OF SPORT SCIENCE
(2022)
Article
Geriatrics & Gerontology
Janaina de Oliveira Brito-Monzani, Filipe Fernandes Stoyell-Conti, Tania Plens Shecaira, Michel Pablo dos Santos Ferreira Silva, Danielle da Silva Dias, Nathalia Bernardes, Katia De Angelis
Summary: Cardiovascular autonomic dysfunction is associated with end organ damage and increased risk of mortality. Menopause and metabolic syndrome increase the risk for cardiorenal complications. The study found that both aerobic and resistance exercise training were effective in improving autonomic control of circulation and reducing renal oxidative stress, thus attenuating the deleterious effects induced by arterial hypertension and fructose overload in female rats after ovarian hormone deprivation.
EXPERIMENTAL GERONTOLOGY
(2021)
Article
Physiology
Javier Rodriguez, Steffen Schulz, Andreas Voss, Sergio Herrera, Salvador Benito, Beatriz F. Giraldo
Summary: This study aimed to classify cardiomyopathy patients by their etiology based on significant indexes extracted from the characterization of the baroreflex mechanism. The results showed that dilated cardiomyopathy patients had specific patterns in the respiratory response to decreasing blood pressure activity, while ischemic cardiomyopathy patients had more stable cardiorespiratory activity. In general, cardiomyopathy patients had limited ability to regulate changes in blood pressure.
FRONTIERS IN PHYSIOLOGY
(2023)
Review
Sport Sciences
Sebastian Kaufmann, Thomas Gronwald, Fabian Herold, Olaf Hoos
Summary: This systematic review examines the proximity of heart rate variability-derived thresholds (HRVTs) to established threshold concepts during endurance exercise in healthy adults. The results suggest that HRVTlow corresponds to VTlow and HRVThigh corresponds to VThigh, but further evaluation is needed. Due to the heterogeneity of study design, threshold concepts, standardization, and lack of female participants, further research is necessary to draw more robust and nuanced conclusions.
SPORTS MEDICINE-OPEN
(2023)
Article
Sport Sciences
Victor H. Gasparini Neto, Leticia N. Santos Neves, Carlos A. Kalva-Filho, Paulo A. Schwingel, Richard D. Leite, Luciana Carletti
Summary: The CPxEL has good test-retest reproducibility and can be used to determine maximal oxygen consumption, maximal heart rate, and second ventilatory threshold without using traditional ergometers.
JOURNAL OF SPORTS SCIENCE AND MEDICINE
(2022)
Article
Sport Sciences
Alessandro Piras, Matteo Cortesi, Rocco Di Michele, Aurelio Trofe, Milena Raffi
Summary: The study investigated the effects of long-term recreational swimming training on cardiac autonomic responses in healthy individuals. Habitual swimmers showed significant improvements in heart rate variability and baroreflex sensitivity compared to sedentary adults. These findings suggest that habitual recreational swimming may have a protective effect against cardiovascular events and positively impact cardiovascular health.
INTERNATIONAL JOURNAL OF SPORTS MEDICINE
(2021)
Article
Physiology
Kyoung Jae Kim, Eric Rivas, Brian Prejean, Dillon Frisco, Millennia Young, Meghan Downs
Summary: The automated analysis method for determining VT1 and VT2 has been shown to be statistically equivalent to subjective visual analysis, providing a time-efficient and valid option. Females demonstrated lower absolute O2 uptake, work rate, and ventilation compared to males, reaching VT1 and VT2 at an earlier relative peak VO2 percentage.
FRONTIERS IN PHYSIOLOGY
(2021)
Article
Physiology
Santiago A. Ruiz-Alias, Javier Olaya-Cuartero, Alberto A. Nancupil-Andrade, Felipe Garcia-Pinillos
Summary: This study determines the relationship between critical power (CP) in running and anaerobic threshold, respiratory compensation point (RCP), and maximum oxygen uptake (VO(2)max) in high-caliber athletes. The results show that CP and RCP represent the same boundary in these athletes, allowing coaches and athletes to easily determine the perturbance threshold.
INTERNATIONAL JOURNAL OF SPORTS PHYSIOLOGY AND PERFORMANCE
(2022)
Article
Physiology
Dominik Schuettler, Ludwig T. Weckbach, Wolfgang Hamm, Florian Maier, Sari Kassem, Johannes Schier, Korbinian Lackermair, Stefan Brunner
Summary: This study investigated the effects of acute altitude exposure on anaerobic threshold and respiratory compensation point in recreational athletes. The results showed that power output and oxygen uptake related indices significantly decreased at high altitude, indicating a need for adjustment in training intensities and workloads for training at high altitude.
RESPIRATORY PHYSIOLOGY & NEUROBIOLOGY
(2021)
Article
Sport Sciences
Bas Van Hooren, Bram Mennen, Thomas Gronwald, Bart C. Bongers, Bruce Rogers
Summary: The purpose of this study was to investigate the accuracy of using consumer grade chest belt and detrended fluctuation analysis (DFA-a1) method for determining the first ventilatory threshold (VT1) in runners, as well as exploring the effects of acute fatigue. The results showed that DFA-a1 was closely related to gas exchange VT1 and had similar accuracy at an individual level. Therefore, DFA-a1 can be a useful method for demarcating exercise intensity. However, it is only accurate in non-fatigued state, which also opens opportunities for fatigue-based training prescription.
JOURNAL OF SPORTS SCIENCES
(2023)
Article
Multidisciplinary Sciences
Mohamed Younes, Celine Robert, Francois Cottin, Eric Barrey
Article
Physiology
Mohamed Younes, Celine Roberts, Eric Barrey, Francois Cottin
FRONTIERS IN PHYSIOLOGY
(2016)
Article
Sport Sciences
A. Hamila, M. Younes, F. Cottin, Y. Ben Amor, R. Shephard, Z. Tabka, E. Bouhlel
Article
Multidisciplinary Sciences
Shuo Liu, Yann Retory, Amelie Sagniez, Sebastien Hardy, Francois Cottin, Gabriel Roisman, Michel Petitjean
Article
Chemistry, Analytical
Julien Desanlis, Dan Gordon, Camille Calveyrac, Francois Cottin, Marie Gernigon
Summary: The study assessed the reliability of the NIRS Portamon device following induced muscle ischemia. Results showed good to excellent reliability within sessions for maximum and minimum values but poorer reliability for reoxygenation rate and between-session measurements.
Article
Biochemistry & Molecular Biology
Lotfi Mhamdi, Oussama Dammak, Francois Cottin, Imed Ben Dhaou
Summary: The electrocardiogram (ECG) provides essential information about various human cardiac conditions, and new smart signal processing methods like machine learning help to analyze ECG signals efficiently. The study aims to develop algorithmic models to analyze ECG tracings and predict cardiovascular diseases to save lives and reduce medical costs.
Article
Engineering, Electrical & Electronic
Lotfi Mhamdi, Oussama Dammak, Francois Cottin, Imed Ben Dhaou
Summary: This paper aims to diagnose COVID-19 contamination automatically using artificial intelligence. The study used a convolutional neural network deep learning algorithm to analyze ECG images and detect cardiac abnormalities caused by the SARS-CoV-2 virus. The research demonstrates that this approach can efficiently contribute to the diagnosis of COVID-19 contamination.
INTERNATIONAL JOURNAL OF IMAGING SYSTEMS AND TECHNOLOGY
(2023)
Article
Multidisciplinary Sciences
Laurent Stubbe, Nicolas Houel, Francois Cottin
Summary: Measuring breathing rates without a mouthpiece is of interest in clinical settings. This study estimated and compared the accuracy and reliability of three non-invasive devices: an optoelectronic plethysmography (OEP) system, an electrocardiogram device, and a spirometer. The results show that the OEP system and electrocardiogram devices have similar accuracy and reliability compared to the spirometer.
SCIENTIFIC REPORTS
(2022)
Article
Rehabilitation
Mathieu Picchiottino, Margaux Honore, Charlotte Leboeuf-Yde, Olivier Gagey, Francois Cottin, David M. Hallman
CHIROPRACTIC & MANUAL THERAPIES
(2020)
Meeting Abstract
Respiratory System
Yann Retory, Shuo Liu, Sebastien Hardy, Francois Cottin, Gabriel Roisman, Michel Petitjean
EUROPEAN RESPIRATORY JOURNAL
(2019)
Article
Sport Sciences
Piponnier Enzo, Ashref Thorkani, Firas Zghal, Francois Cottin, Vincent Martin
JOURNAL OF SPORTS SCIENCE AND MEDICINE
(2019)
Meeting Abstract
Respiratory System
Shuo Liu, Yann Retory, Amelie Sagniez, Sebastien Hardy, Francois Cottin, Gabriel Roisman, Michel Petitjean
EUROPEAN RESPIRATORY JOURNAL
(2018)
Proceedings Paper
Computer Science, Artificial Intelligence
David Antonio Gomez Jauregui, Carole Castanier, Bingbing Chang, Michael Val, Franois Cottin, Christine Le Scanff, Jean Claude Martin
2017 SEVENTH INTERNATIONAL CONFERENCE ON AFFECTIVE COMPUTING AND INTELLIGENT INTERACTION (ACII)
(2017)
Article
Rehabilitation
Mohamed Younes, Karine Nowakowski, Benoit Didier-Laurent, Michel Gombert, Francois Cottin
CHIROPRACTIC & MANUAL THERAPIES
(2017)
Meeting Abstract
Computer Science, Interdisciplinary Applications
L. Stubbe, N. Houel, M. Soudain-Pineau, P. Billaudel, F. Cottin
COMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL ENGINEERING
(2017)