Article
Biology
Jose Priego-Quesada, Marcio F. Goethel, Klaus Magno Becker, Ricardo J. Fernandes, Joao Paulo Vilas-Boas
Summary: This tutorial paper describes the methodology and examples of surface electromyography decomposition to teach the concept of motor unit recruitment. This technique can facilitate the introduction of theoretical content in practical classes for physiology and biomechanics academics.
Article
Sport Sciences
Kenneth G. Harlan, Roberto B. Merucci, Jalen J. Weaver, Thomas C. Windle, Moh H. Malek
Summary: This study investigated the influence of pre-exhaustion exercise on the electromyographic fatigue threshold (EMG(FT)), finding that EMG(FT) values decreased in healthy active subjects but remained unchanged in elite runners. These results suggest that the impact of pre-exhaustion exercise may be influenced by the subject's habitual exercise history.
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH
(2021)
Article
Cell Biology
Claire L. Warriner, Samaher Fageiry, Shreya Saxena, Rui M. Costa, Andrew Miri
Summary: During limb movement, spinal circuits facilitate the alternating activation of antagonistic flexor and extensor muscles. This study found that the motor cortex drives different muscle activation patterns via task-specific activity covariation.
Article
Multidisciplinary Sciences
Shuaijian Yang, Jinhao Cheng, Jin Shang, Chen Hang, Jie Qi, Leni Zhong, Qingyan Rao, Lei He, Chenqi Liu, Li Ding, Mingming Zhang, Samit Chakrabarty, Xingyu Jiang
Summary: This article introduces an adhesive dry electrode made using tannic acid, polyvinyl alcohol, and PEDOT:PSS (TPP), which offers superior stretchability and adhesiveness for long-term contact with the skin and recording. A metal-polymer electrode array patch (MEAP) comprising liquid metal (LM) circuits and TPP electrodes is also developed, showing better conformability and signal-to-noise ratio for real-time monitoring of muscle stress and fatigue.
NATURE COMMUNICATIONS
(2023)
Article
Neurosciences
Dane Donegan, Christoph M. Kanzler, Julia Buescher, Paulius Viskaitis, Ed F. Bracey, Olivier Lambercy, Denis Burdakov
Summary: Skilled arm movements require adaptation based on sensory errors, and studies in mice show that forelimb motor adaptation is regulated by the hypothalamic orexin/hypocretin neurons (HONs). By studying goal-oriented mouse-robot interactions, distinct HON signals were found during forelimb movements and motor adaptation. Temporally-delimited optosilencing of these movement-associated HON signals impaired sensory error-based motor adaptation.
JOURNAL OF NEUROSCIENCE
(2022)
Article
Geriatrics & Gerontology
Aiden M. Payne, Jacqueline A. Palmer, J. Lucas McKay, Lena H. Ting
Summary: This study aimed to investigate how cognitive set shifting ability is manifested in successful balance recovery behavior in older adults with high clinical balance ability. Results showed that lower cognitive set shifting ability was associated with smaller center of mass displacement, lower flexibility in late-phase balance-correcting muscle activity, and larger cortical N1 responses during balance recovery.
FRONTIERS IN AGING NEUROSCIENCE
(2021)
Article
Biophysics
Maryam Mashayekhi, Majid M. Moghaddam
Summary: This study presents a self-adapting control method based on online fatigue detection for upper-limb rehabilitation therapy. Experimental tests validate the feasibility of the method and compare the performance differences between two control methods. Simulations further confirm the effectiveness of the proposed method in stroke patients' rehabilitation.
JOURNAL OF BIOMECHANICS
(2022)
Article
Physiology
Kylie K. Harmon, Adam S. Hamilton, Brent D. Johnson, Frank J. Bartek, Ryan M. Girts, Rob J. MacLennan, Debbie L. Hahs-Vaughn, Matt S. Stock
Summary: The study compared the motor unit action potential (MUAP) amplitude at different torque levels and in fatigue conditions. Results showed that MUAP amplitude during a 30% MVC fatiguing protocol was comparable to that during a non-fatigued 80% MVC condition.
EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY
(2021)
Article
Orthopedics
Shailesh S. Kantak, Tessa Johnson, Ryan Zarzycki
Summary: This article discusses the mechanisms and influencing factors of pain-related movement dysfunction from a contemporary motor control perspective and proposes future research directions to improve the assessment and treatment of patients with painful conditions.
Review
Engineering, Biomedical
Camila R. Carvalho, J. Marvin Fernandez, Antonio J. del-Ama, Filipe Oliveira Barroso, Juan C. Moreno
Summary: This paper reviewed the state-of-the-art of EMG onset detection methods and compared the performance of the most commonly used methods on experimental data. The study found that threshold-based methods are still the most commonly used for EMG onset detection. The three most commonly used methods (Single, Double, and Adaptive Threshold) were proven to be accurate, with Single and Adaptive Threshold being faster in detection time.
JOURNAL OF NEUROENGINEERING AND REHABILITATION
(2023)
Article
Chemistry, Analytical
Aberham Genetu Feleke, Luzheng Bi, Weijie Fei
Summary: This study successfully predicted the 3-D hand position of complex movements using an RFNN model, achieving an average performance of CC = 0.85 and NRMSE = 0.105. While predictions were slightly better for tasks involving quick movements, the difference in accuracy between quick and slow motions was insignificant.
Article
Neurosciences
Obaid U. Khurram, Carlos B. Mantilla, Gary C. Sieck
Summary: This study investigates the neuromotor control of the diaphragm muscle (DIAm) during spontaneous breathing in awake rats. The analysis of electromyography (EMG) data reveals differences in activity patterns during motor unit recruitment and derecruitment, providing insights into the temporal aspects of motor control.
JOURNAL OF NEUROPHYSIOLOGY
(2023)
Article
Clinical Neurology
Luca Vigano, Henrietta Howells, Marco Rossi, Marco Rabuffetti, Guglielmo Puglisi, Antonella Leonetti, Andrea Bellacicca, Marco Conti Nibali, Lorenzo Gay, Tommaso Sciortino, Gabriella Cerri, Lorenzo Bello, Luca Fornia
Summary: The activity of frontal motor areas during hand-object interaction is coordinated by specific white matter pathways. Direct electrical stimulation on these pathways can disrupt hand-muscle activity during task execution. The disruption patterns differ depending on the stimulated region, indicating distinct functional roles of the dorsal and ventral frontal white matter regions. Resections in the dorsal white matter region surrounding the supplementary motor area may result in transient upper-limb deficit.
Article
Psychology, Biological
An T. Nguyen, Le-Anne Jacobs, James R. Tresilian, Ottmar V. Lipp, Welber Marinovic
Summary: This study examined the effects of intense sensory stimulation on voluntary and involuntary behaviors during different stages of action preparation. The results showed that the stimulation facilitated voluntary responses and suppressed eye-blink reflexes, shedding light on the mechanisms involved in preparing anticipatory actions.
Article
Neurosciences
Thomas W. Ward, Seth D. Springer, Mikki Schantell, Jason A. John, Lucy K. Horne, Anna T. Coutant, Hannah J. Okelberry, Madelyn P. Willett, Hallie J. Johnson, Abraham D. Killanin, Elizabeth Heinrichs-Graham, Tony W. Wilson
Summary: This study found that regular cannabis users show differences in motor control compared to nonusers, with stronger brain oscillations during the execution phase of the task. These findings suggest that users may employ compensatory processing in both primary motor and higher-order motor cortices to maintain task performance.
HUMAN BRAIN MAPPING
(2023)
Article
Neurosciences
Meyi Duleme, Stephane Perrey, Gerard Dray
Summary: This study examines the frequency band modulations underlying working memory load and the role of executive control using scalp EEG data. The results show that decoding accuracy is higher for combined frequency bands compared to isolated frequency bands, and that there are transient changes in frequency band clusters during specific time windows.
COGNITIVE NEUROSCIENCE
(2023)
Article
Multidisciplinary Sciences
Frank Imbach, Stephane Perrey, Romain Chailan, Thibaut Meline, Robin Candau
Summary: This study aims to provide a transferable methodology in the context of sport performance modelling, with a special focus on the generalization of models. Data from seven elite short track speed skaters were collected over a three-month training period. Different models were compared, including the variable dose-response model, elastic net, principal component regression, and random forest models. The results showed that the ENET model achieved greater generalization and predictive accuracy performances.
SCIENTIFIC REPORTS
(2022)
Correction
Biochemical Research Methods
Yashika Arora, Pushpinder Walia, Mitsuhiro Hayashibe, Makii Muthalib, Shubhajit Roy Chowdhury, Stephane Perrey, Anirban Dutta
PLOS COMPUTATIONAL BIOLOGY
(2022)
Article
Psychology, Biological
I Hoang, L. Paire-Ficout, R. Derollepot, S. Perrey, H. Devos, M. Ranchet
Summary: Executive functions are crucial for successful walking tasks, especially when performing dual tasks. Previous studies have focused on the prefrontal cortex activity in older adults under different walking conditions, but little is known about the changes in dorsolateral prefrontal cortex (DLPFC) activity during the early stages of aging. This study aimed to compare the changes in DLPFC activity during simple and dual task walking across three age groups. The results revealed that older adults exhibited increased DLPFC activity in the right hemisphere during simple task walking, but they seemed to have enough cognitive resources to maintain performance during dual task walking. These findings suggest the presence of compensation mechanisms in early aging, which may have implications for fall risk assessment.
INTERNATIONAL JOURNAL OF PSYCHOPHYSIOLOGY
(2022)
Article
Chemistry, Analytical
Germain Faity, Denis Mottet, Jerome Froger
Summary: This study assessed the validity and reliability of Kinect v2 for upper limb reaching kinematics analysis. The results showed that Kinect can reliably assess certain metrics, but has lower reliability in other metrics. Due to its ease of use and markerless properties, Kinect can be used in clinical routine for guiding individualized rehabilitation of the upper limb, but its tracking limitations should be kept in mind.
Article
Multidisciplinary Sciences
Quentin Chenot, Caroline Hamery, Evelyne Lepron, Pierre Besson, Xavier De Boissezon, Stephane Perrey, Sebastien Scannella
Summary: This study investigated the effects of tRNS on performance in a complex task and found that high-definition tRNS was more effective than simple-definition tRNS in enhancing long-term performance, with faster learning rate and better performance retention.
SCIENTIFIC REPORTS
(2022)
Article
Sport Sciences
Frank Imbach, Nicolas Sutton-Charani, Jacky Montmain, Robin Candau, Stephane Perrey
Summary: The emergence of Fitness-Fatigue impulse response models (FFMs) has allowed for the investigation of training effects on athletic performance. However, their effectiveness in describing and predicting performance is limited due to simplified physiological processes and a univariate consideration of factors. Therefore, machine-learning methods can enhance performance prediction by incorporating physiological representations and multivariate algorithms.
SPORTS MEDICINE-OPEN
(2022)
Review
Sport Sciences
Stephane Perrey
Summary: This article emphasizes the importance of cognitive demand in training monitoring and proposes methods for better applying cognitive demand indicators in various sports settings. While the assessment of cognitive demand is still in its early stages, it may yield fruitful results if rigorous protocols and deep understanding of neurobehavioral and cognitive aspects are employed.
Article
Multidisciplinary Sciences
Frank Imbach, Waleed Ragheb, Valentin Leveau, Romain Chailan, Robin Candau, Stephane Perrey
Summary: This study aims to predict individual A-V profiles using GNSS measurements in real-world situations. The study found that GNSS features have limited relevance for predicting individual A-V profiles, but new signal processing features have potential in modeling athletic performance or injury occurrence.
SCIENTIFIC REPORTS
(2022)
Article
Physiology
Alexandre P. Gutknecht, Martin Gonzalez-Figueres, Thomas Brioche, Olivier Maurelli, Stephane Perrey, Francois B. Favier
Summary: The purpose of this study was to determine the optimal altitude for hypoxic training and investigate the relationship between pulse oxygen saturation and training-induced performance improvement. The results showed that hypoxic training at an altitude of 1,500 meters significantly improved anaerobic performance, while the correlation between pulse oxygen saturation and performance improvement during training was weak.
FRONTIERS IN PHYSIOLOGY
(2022)
Article
Chemistry, Analytical
Hugo Meras Serrano, Denis Mottet, Kevin Caillaud
Summary: The objective of this study was to validate the use of PLATES for assessing unipodal balance in the field. The study found that PLATES was reliable and comparable to a reference force platform with 6-DOF for simple unipodal balance tests, both in laboratory and field conditions. Therefore, health professionals, physical trainers, and researchers can use PLATES to conduct Single Leg Balance and Single Leg Landing tests in both settings.
Article
Neurosciences
Stephane Perrey
Summary: While physical abilities are known to be important for elite sport performance, recent focus has shifted towards the role of cognitive processes. Noninvasive transcranial electrical stimulation (tES) has been found to modulate brain functioning and improve cognitive functions related to sports performance. However, more research is needed to fully understand its effectiveness and benefits, particularly in elite athletes. Modulating inhibitory control through tES over the frontal cortex may significantly enhance mental performance. Further studies are required to assess the long-term effects of tES as an ergogenic aid in conjunction with other cognitive training methods.
Article
Neurosciences
Ludovic Molle, Alexandre Coste, Charles-Etienne Benoit, Gerard Derosiere, Stefan Janaqi, Stephane Perrey, Arnaud Dupeyron
Summary: The emergence of consciousness is a biological mystery, and little is known about the physiological mechanisms underlying subjective experience. Recent research suggests that the breathing phase can modulate attention, with inhalation improving perceptual awareness and decision-making speed. This study tested this hypothesis and found that inhalation enhances perceptual awareness and speeds up objective decision-making.
JOURNAL OF NEUROPHYSIOLOGY
(2023)
Article
Sport Sciences
Lenaic Borot, Benjamin Pageaux, Davy Laroche, Gregoire Vergotte, Romuald Lepers, Stephane Perrey
Summary: Compared to concentric exercise, eccentric exercise has a higher mental demand and activates the frontoparietal network, especially when the exercise intensity is fixed by torque.
SCANDINAVIAN JOURNAL OF MEDICINE & SCIENCE IN SPORTS
(2023)
Article
Clinical Neurology
Zaineb Ajra, Binbin Xu, Gerard Dray, Jacky Montmain, Stephane Perrey
Summary: The study proposes the use of shallow neural networks to analyze EEG signals in order to diagnose dementia at an early stage. The results show that the CNN-based models outperformed conventional methods and achieved an accuracy of 94.54% in the test dataset.
FRONTIERS IN NEUROLOGY
(2023)
