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Peng J, Zikereya T, Shao Z, Shi K. The neuromechanical of Beta-band corticomuscular coupling within the human motor system. Front Neurosci 2024; 18:1441002. [PMID: 39211436 PMCID: PMC11358111 DOI: 10.3389/fnins.2024.1441002] [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: 05/30/2024] [Accepted: 07/26/2024] [Indexed: 09/04/2024] Open
Abstract
Beta-band activity in the sensorimotor cortex is considered a potential biomarker for evaluating motor functions. The intricate connection between the brain and muscle (corticomuscular coherence), especially in beta band, was found to be modulated by multiple motor demands. This coherence also showed abnormality in motion-related disorders. However, although there has been a substantial accumulation of experimental evidence, the neural mechanisms underlie corticomuscular coupling in beta band are not yet fully clear, and some are still a matter of controversy. In this review, we summarized the findings on the impact of Beta-band corticomuscular coherence to multiple conditions (sports, exercise training, injury recovery, human functional restoration, neurodegenerative diseases, age-related changes, cognitive functions, pain and fatigue, and clinical applications), and pointed out several future directions for the scientific questions currently unsolved. In conclusion, an in-depth study of Beta-band corticomuscular coupling not only elucidates the neural mechanisms of motor control but also offers new insights and methodologies for the diagnosis and treatment of motor rehabilitation and related disorders. Understanding these mechanisms can lead to personalized neuromodulation strategies and real-time neurofeedback systems, optimizing interventions based on individual neurophysiological profiles. This personalized approach has the potential to significantly improve therapeutic outcomes and athletic performance by addressing the unique needs of each individual.
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Affiliation(s)
| | | | | | - Kaixuan Shi
- Physical Education Department, China University of Geosciences Beijing, Beijing, China
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Santos PDG, Vaz JR, Correia J, Neto T, Pezarat-Correia P. Long-Term Neurophysiological Adaptations to Strength Training: A Systematic Review With Cross-Sectional Studies. J Strength Cond Res 2023; 37:2091-2105. [PMID: 37369087 DOI: 10.1519/jsc.0000000000004543] [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: 06/29/2023]
Abstract
ABSTRACT Santos, PDG, Vaz, JR, Correia, J, Neto, T, and Pezarat-Correia, P. Long-term neurophysiological adaptations to strength training: a systematic review with cross-sectional studies. J Strength Cond Res 37(10): 2091-2105, 2023-Neuromuscular adaptations to strength training are an extensively studied topic in sports sciences. However, there is scarce information about how neural mechanisms during force production differ between trained and untrained individuals. The purpose of this systematic review is to better understand the differences between highly trained and untrained individuals to establish the long-term neural adaptations to strength training. Three databases were used for the article search (PubMed, Web of Science, and Scopus). Studies were included if they compared groups of resistance-trained with untrained people, aged 18-40 year, and acquired electromyography (EMG) signals during strength tasks. Twenty articles met the eligibility criteria. Generally, strength-trained individuals produced greater maximal voluntary activation, while reducing muscle activity in submaximal tasks, which may affect the acute response to strength training. These individuals also presented lower co-contraction of the antagonist muscles, although it depends on the specific training background. Global intermuscular coordination may be another important mechanism of adaptation in response to long-term strength training; however, further research is necessary to understand how it develops over time. Although these results should be carefully interpreted because of the great disparity of analyzed variables and methods of EMG processing, chronic neural adaptations seem to be decisive to greater force production. It is crucial to know the timings at which these adaptations stagnate and need to be stimulated with advanced training methods. Thus, training programs should be adapted to training status because the same stimulus in different training stages will lead to different responses.
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Affiliation(s)
- Paulo D G Santos
- Neuromuscular Research Lab, Faculty of Human Kinetics, Lisbon, Portugal
| | - João R Vaz
- Neuromuscular Research Lab, Faculty of Human Kinetics, Lisbon, Portugal
- CIPER, Faculty of Human Kinetics, Lisbon, Portugal
- Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Egas Moniz-Cooperativa de Ensino Superior, Monte da Caparica, Portugal; and
| | - Joana Correia
- Neuromuscular Research Lab, Faculty of Human Kinetics, Lisbon, Portugal
| | - Tiago Neto
- Department of Physiotherapy, LUNEX International University of Health, Exercise and Sports, Differdange, Luxembourg
| | - Pedro Pezarat-Correia
- Neuromuscular Research Lab, Faculty of Human Kinetics, Lisbon, Portugal
- CIPER, Faculty of Human Kinetics, Lisbon, Portugal
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Reddy C, Zhou Y, Wan B, Zhang X. Sex and posture dependence of neck muscle size-strength relationships. J Biomech 2021; 127:110660. [PMID: 34364186 DOI: 10.1016/j.jbiomech.2021.110660] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 07/21/2021] [Accepted: 07/25/2021] [Indexed: 11/18/2022]
Abstract
Neck muscle size and strength have been linked to lower injury risk and reduced pain. However, prior findings have been inconclusive and have failed to clarify whether there are sex differences in neck muscle size-strength relationships. Such differences may point to an underlying cause for the reported sex difference in neck pain prevalence. Thirty participants (13 males, 17 females) who underwent neck strength testing and MR imaging were analyzed. Strength was measured in three conditions that differed in posture and exertion direction. Muscle size was quantified by three metrics: anatomical cross-sectional area (ACSA), muscle volume (MV), and an estimate of physiological cross-sectional area-reconstruction-based cross-sectional area (RCSA). Inter-posture strength correlations, muscle size-strength correlations, and sex differences were analyzed with linear regression. Males were approximately 65% stronger and had significantly larger muscles. Strength varied significantly across postures, but only female strength values for different postures were significantly correlated. Observed in males only, the sternocleidomastoid (SCM) was a strong predictor of flexion strength in the neutral posture while the anterior scalene (AS) was more involved in the extended. No extensor's size was significantly linked to extension strength. A greater amount of force variation is unexplained by muscle size alone in females than in males. Males and females exhibited distinct size-strength relationships, highlighting the need for sex-specific models and analyses and the greater potential effect of non-morphometric factors on force generating capacity in females. No advantage of one muscle size metric over another in strength prediction was evidenced.
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Affiliation(s)
- Curran Reddy
- Department of Biomedical Engineering, Texas A&M University
| | - Yu Zhou
- Department of Industrial and Systems Engineering, Texas A&M University
| | - Bocheng Wan
- Department of Industrial and Systems Engineering, Texas A&M University
| | - Xudong Zhang
- Department of Biomedical Engineering, Texas A&M University; Department of Industrial and Systems Engineering, Texas A&M University; Department of Mechanical Engineering, Texas A&M University.
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Jian C, Deng L, Liu H, Yan T, Wang X, Song R. Modulating and restoring inter-muscular coordination in stroke patients using two-dimensional myoelectric computer interface: a cross-sectional and longitudinal study. J Neural Eng 2021; 18. [DOI: 10.1088/1741-2552/abc29a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 10/19/2020] [Indexed: 12/11/2022]
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Corticomuscular Coherence and Motor Control Adaptations after Isometric Maximal Strength Training. Brain Sci 2021; 11:brainsci11020254. [PMID: 33670532 PMCID: PMC7922221 DOI: 10.3390/brainsci11020254] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 02/05/2021] [Accepted: 02/09/2021] [Indexed: 11/16/2022] Open
Abstract
Strength training (ST) induces corticomuscular adaptations leading to enhanced strength. ST alters the agonist and antagonist muscle activations, which changes the motor control, i.e., force production stability and accuracy. This study evaluated the alteration of corticomuscular communication and motor control through the quantification of corticomuscular coherence (CMC) and absolute (AE) and variable error (VE) of the force production throughout a 3 week Maximal Strength Training (MST) intervention specifically designed to strengthen ankle plantarflexion (PF). Evaluation sessions with electroencephalography, electromyography, and torque recordings were conducted pre-training, 1 week after the training initiation, then post-training. Training effect was evaluated over the maximal voluntary isometric contractions (MVIC), the submaximal torque production, AE and VE, muscle activation, and CMC changes during submaximal contractions at 20% of the initial and daily MVIC. MVIC increased significantly throughout the training completion. For submaximal contractions, agonist muscle activation decreased over time only for the initial torque level while antagonist muscle activation, AE, and VE decreased over time for each torque level. CMC remained unaltered by the MST. Our results revealed that neurophysiological adaptations are noticeable as soon as 1 week post-training. However, CMC remained unaltered by MST, suggesting that central motor adaptations may take longer to be translated into CMC alteration.
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Mori K, Manda Y, Kitagawa K, Nagatsuka H, Furutera H, Kodama N, Minagi S. Coordination of surface electromyography activity in the posterior tongue region during mastication of differently textured foods. J Oral Rehabil 2020; 48:403-410. [PMID: 33319400 DOI: 10.1111/joor.13135] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 12/04/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Masticatory movement occurs complicatedly and bilaterally. Although the tongue plays an important role in mastication, bilateral tongue function during mastication has not been clarified yet. OBJECTIVE To investigate the effect of food properties on posterior tongue activity and coordination of muscles bilaterally by electromyography (EMG). METHODS Twenty healthy adults (10 males and 10 females; mean age 28 years; range: 22-33 years) participated in this study. Three test foods, gummy jelly (hard food), sponge cake (soft food requiring crushing), and mashed potatoes (soft food not requiring crushing), were used. Bilateral masseter N-EMG (surface electromyography for measuring the muscle activity of posterior tongue) and submental EMG were carried out while the participants chewed three test foods. The participants were instructed to masticate three test foods only on the right side and only on the left side unilaterally. RESULTS In the case of gummy jelly, N-EMG activity on the mastication side was significantly larger than that on the non-mastication side (P < .01). Regarding temporal relationship between the masseter and N-EMG activity, in the case of gummy jelly, the percentage of cases where the N-EMG peak was observed during masseter muscle EMG bursts was significantly higher than those for sponge cake and mashed potatoes (P < .01). CONCLUSION N-EMG activity on the mastication side was significantly larger than that on the non-mastication side in the mastication of hard foods. Tongue showed activity pattern changes and coordinated with the masseter muscle depending on food texture.
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Affiliation(s)
- Keitaro Mori
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Yousuke Manda
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Keisuke Kitagawa
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Hiroaki Nagatsuka
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Hiroshi Furutera
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Naoki Kodama
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Shogo Minagi
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
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Chalard A, Amarantini D, Tisseyre J, Marque P, Gasq D. Spastic co-contraction is directly associated with altered cortical beta oscillations after stroke. Clin Neurophysiol 2020; 131:1345-1353. [PMID: 32304849 DOI: 10.1016/j.clinph.2020.02.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 01/16/2020] [Accepted: 02/12/2020] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Spastic co-contraction is a motor-disabling form of muscle overactivity occurring after a stroke, contributing to a limitation in active movement and a certain level of motor impairment. The cortical mechanisms underlying spastic co-contraction remain to be more fully elucidated, the present study aimed to investigate the role of the cortical beta oscillations in spastic co-contraction after a stroke. METHOD We recruited fifteen post-stroke participants and nine healthy controls. The participants were asked to perform active elbow extensions. In the study, multimodal analysis was performed to combine the evaluation of three-dimensional elbow kinematics, the elbow muscles electromyographic activations, and the cortical oscillatory activity. RESULTS The movement-related beta desynchronization was significantly decreased in post-stroke participants compared to healthy participants. We found a significant correlation between the movement-related beta desynchronization and the elbow flexors activation during the active elbow extension in post-stroke participants. When compared to healthy participants, post-stroke participants exhibited significant alterations in the elbow kinematics and greater muscle activation levels. CONCLUSIONS Cortical beta oscillation alterations may reflect an important neural mechanism underlying spastic co-contraction after a stroke. SIGNIFICANCE Measuring the cortical oscillatory activity could be useful to further characterize neuromuscular plasticity induced by recovery or therapeutic interventions.
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Affiliation(s)
- Alexandre Chalard
- ToNIC, Toulouse NeuroImaging Center, Université de Toulouse, Inserm, UPS, France; Ipsen Innovation, Les Ulis, France
| | - David Amarantini
- ToNIC, Toulouse NeuroImaging Center, Université de Toulouse, Inserm, UPS, France
| | - Joseph Tisseyre
- ToNIC, Toulouse NeuroImaging Center, Université de Toulouse, Inserm, UPS, France
| | - Philippe Marque
- ToNIC, Toulouse NeuroImaging Center, Université de Toulouse, Inserm, UPS, France; Department of Neurological Rehabilitation, University Hospital of Toulouse, Hôpital de Rangueil, Toulouse, France
| | - David Gasq
- ToNIC, Toulouse NeuroImaging Center, Université de Toulouse, Inserm, UPS, France; Department of Functional Physiological Explorations, University Hospital of Toulouse, Hôpital de Rangueil, Toulouse, France.
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Wang L, Niu W, Wang K, Zhang S, Li L, Lu T. Badminton players show a lower coactivation and higher beta band intermuscular interactions of ankle antagonist muscles during isokinetic exercise. Med Biol Eng Comput 2019; 57:2407-2415. [PMID: 31473946 DOI: 10.1007/s11517-019-02040-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Accepted: 08/22/2019] [Indexed: 10/26/2022]
Abstract
Previous studies have suggested that skilled athletes may show a specific muscle activation pattern with a lower antagonist coactivation level. Based on the point, we hypothesize that the coupling of antagonistic muscles may be different between badminton players and non-skilled individuals during exercises. The current work was designed to verify the hypothesis. Ten male college students and eight male badminton players performed three maximal voluntary isometric contractions (MVC) and a set of three maximal concentric ankle dorsiflexion and plantar flexions at an angular velocity of 30°, 60°, 120°, and 180°/s. Surface electromyography (EMG) was recorded from the tibialis anterior (TA) and lateral gastrocnemius (LG) muscles during the test. Normalized average EMG amplitude and phase synchronization index (PSI) between surface EMG of TA and LG were calculated. Antagonist muscle coactivation was significantly lower (from 22.1% ± 9.4 and 10.7% ± 3.7 at 30°/s to 22.4% ± 9.7 and 10.6% ± 2.5 at 180°/s for non-players and badminton players group, respectively), and PSI in beta frequency band was significantly higher (from 0.42 ± 0.06 and 0.47 ± 0.15 at 30°/s to 0.35 ± 0.12 and 0.49 ± 0.14 at 180°/s) in the badminton player group compared with the non-player group during isokinetic ankle dorsiflexion contraction. No significant difference was found in antagonist muscle coactivation and PSI between two group subjects during ankle plantar flexion. The decrease of antagonist coactivation may indicate an optimal motor control style to increase the contraction efficiency, while the increase coupling of antagonistic muscles may help to ensure joint stability to compensate for the decrease of antagonist coactivation. Graphical abstract Significant difference of observed indexes between non-players and badminton players.
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Affiliation(s)
- Lejun Wang
- Sport and Health Research Center, Physical Education Department, Tongji University, Shanghai, 200092, China.
| | - Wenxin Niu
- Yangzhi Rehabilitation Hospital, Tongji University School of Medicine, Shanghai, 201619, China.
| | - Kuan Wang
- Yangzhi Rehabilitation Hospital, Tongji University School of Medicine, Shanghai, 201619, China
| | - Shengnian Zhang
- School of Kinesiology, Shanghai University of Sport, Shanghai, 200438, China
| | - Li Li
- Department of Health & Kinesiology, Georgia Southern University, Statesboro, GA, 30460, USA
| | - Tianfeng Lu
- Sport and Health Research Center, Physical Education Department, Tongji University, Shanghai, 200092, China
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Rahman M, Karwowski W, Fafrowicz M, Hancock PA. Neuroergonomics Applications of Electroencephalography in Physical Activities: A Systematic Review. Front Hum Neurosci 2019; 13:182. [PMID: 31214002 PMCID: PMC6558147 DOI: 10.3389/fnhum.2019.00182] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 05/20/2019] [Indexed: 11/13/2022] Open
Abstract
Recent years have seen increased interest in neuroergonomics, which investigates the brain activities of people engaged in diverse physical and cognitive activities at work and in everyday life. The present work extends upon prior assessments of the state of this art. However, here we narrow our focus specifically to studies that use electroencephalography (EEG) to measure brain activity, correlates, and effects during physical activity. The review uses systematically selected, openly published works derived from a guided search through peer-reviewed journals and conference proceedings. Identified studies were then categorized by the type of physical activity and evaluated considering methodological and chronological aspects via statistical and content-based analyses. From the identified works (n = 110), a specific number (n = 38) focused on less mobile muscular activities, while an additional group (n = 22) featured both physical and cognitive tasks. The remainder (n = 50) investigated various physical exercises and sporting activities and thus were here identified as a miscellaneous grouping. Most of the physical activities were isometric exertions, moving parts of upper and lower limbs, or walking and cycling. These primary categories were sub-categorized based on movement patterns, the use of the event-related potentials (ERP) technique, the use of recording methods along with EEG and considering mental effects. Further information on subjects' gender, EEG recording devices, data processing, and artifact correction methods and citations was extracted. Due to the heterogeneous nature of the findings from various studies, statistical analyses were not performed. These were thus included in a descriptive fashion. Finally, contemporary research gaps were pointed out, and future research prospects to address those gaps were discussed.
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Affiliation(s)
- Mahjabeen Rahman
- Computational Neuroergonomics Laboratory, Department of Industrial Engineering and Management Systems, University of Central Florida, Orlando, FL, United States
| | - Waldemar Karwowski
- Computational Neuroergonomics Laboratory, Department of Industrial Engineering and Management Systems, University of Central Florida, Orlando, FL, United States
| | - Magdalena Fafrowicz
- Department of Cognitive Neuroscience and Neuroergonomics, Neurobiology Department, The Maloploska Center of Biotechnology, Jagiellonian University in Krakow, Krakow, Poland
| | - Peter A Hancock
- Department of Psychology, University of Central Florida, Orlando, FL, United States
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Desmyttere G, Mathieu E, Begon M, Simoneau‐Buessinger E, Cremoux S. Effect of the phase of force production on corticomuscular coherence with agonist and antagonist muscles. Eur J Neurosci 2018; 48:3288-3298. [DOI: 10.1111/ejn.14126] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 08/08/2018] [Accepted: 08/17/2018] [Indexed: 11/30/2022]
Affiliation(s)
- Gauthier Desmyttere
- École de Kinésiologie et des Sciences de l’Activité PhysiqueUniversité de Montréal Montréal Canada
- LAMIH, UMR CNRS 8201Université de Valenciennes et du Hainaut Cambrésis Valenciennes France
| | - Emilie Mathieu
- LAMIH, UMR CNRS 8201Université de Valenciennes et du Hainaut Cambrésis Valenciennes France
| | - Mickael Begon
- École de Kinésiologie et des Sciences de l’Activité PhysiqueUniversité de Montréal Montréal Canada
| | | | - Sylvain Cremoux
- LAMIH, UMR CNRS 8201Université de Valenciennes et du Hainaut Cambrésis Valenciennes France
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Acute cardiovascular exercise promotes functional changes in cortico-motor networks during the early stages of motor memory consolidation. Neuroimage 2018; 174:380-392. [DOI: 10.1016/j.neuroimage.2018.03.029] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Revised: 03/06/2018] [Accepted: 03/14/2018] [Indexed: 12/31/2022] Open
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Charissou C, Amarantini D, Baurès R, Berton E, Vigouroux L. Effects of hand configuration on muscle force coordination, co-contraction and concomitant intermuscular coupling during maximal isometric flexion of the fingers. Eur J Appl Physiol 2017; 117:2309-2320. [PMID: 28932987 DOI: 10.1007/s00421-017-3718-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 09/08/2017] [Indexed: 01/02/2023]
Abstract
PURPOSE The mechanisms governing the control of musculoskeletal redundancy remain to be fully understood. The hand is highly redundant, and shows different functional role of extensors according to its configuration for a same functional task of finger flexion. Through intermuscular coherence analysis combined with hand musculoskeletal modelling during maximal isometric hand contractions, our aim was to better understand the neural mechanisms underlying the control of muscle force coordination and agonist-antagonist co-contraction. METHODS Thirteen participants performed maximal isometric flexions of the fingers in two configurations: power grip (Power) and finger-pressing on a surface (Press). Hand kinematics and force/moment measurements were used as inputs in a musculoskeletal model of the hand to determine muscular tensions and co-contraction. EMG-EMG coherence analysis was performed between wrist and finger flexors and extensor muscle pairs in alpha, beta and gamma frequency bands. RESULTS Concomitantly with tailored muscle force coordination and increased co-contraction between Press and Power (mean difference: 48.08%; p < 0.05), our results showed muscle-pair-specific modulation of intermuscular coupling, characterized by pair-specific modulation of EMG-EMG coherence between Power and Press (p < 0.05), and a negative linear association between co-contraction and intermuscular coupling for the ECR/FCR agonist-antagonist muscle pair (r = - 0.65; p < 0.05). CONCLUSIONS This study brings new evidence that pair-specific modulation of EMG-EMG coherence is related to modulation of muscle force coordination during hand contractions. Our results highlight the functional importance of intermuscular coupling as a mechanism contributing to the control of muscle force synergies and agonist-antagonist co-contraction.
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Affiliation(s)
- Camille Charissou
- CNRS, ISM UMR 7287, Aix-Marseille Université, Marseille, France. .,ToNIC, Toulouse NeuroImaging Center, INSERM, UPS, Université de Toulouse, Toulouse, France. .,Institut des Sciences du Mouvement-Etienne-Jules Marey, CP 910, 163 av. de Luminy, 13288, Marseille Cedex 9, France.
| | - David Amarantini
- ToNIC, Toulouse NeuroImaging Center, INSERM, UPS, Université de Toulouse, Toulouse, France
| | - Robin Baurès
- CerCo, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Eric Berton
- CNRS, ISM UMR 7287, Aix-Marseille Université, Marseille, France
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Cremoux S, Tallet J, Dal Maso F, Berton E, Amarantini D. Impaired corticomuscular coherence during isometric elbow flexion contractions in humans with cervical spinal cord injury. Eur J Neurosci 2017; 46:1991-2000. [DOI: 10.1111/ejn.13641] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 06/29/2017] [Accepted: 07/03/2017] [Indexed: 11/26/2022]
Affiliation(s)
- Sylvain Cremoux
- LAMIH, UMR CNRS 8201; Université de Valenciennes et du Hainaut-Cambrésis; F-59313 Valenciennes France
| | - Jessica Tallet
- Toulouse NeuroImaging Center; Université de Toulouse, Inserm, UPS; Toulouse France
| | - Fabien Dal Maso
- Département de Kinésiologie; Université de Montréal; Montréal QC Canada
- School of Physical and Occupational Therapy; McGill University; Montréal QC Canada
| | - Eric Berton
- Aix-Marseille Université; CNRS, ISM UMR 7287; Marseille Cedex 09 France
| | - David Amarantini
- Toulouse NeuroImaging Center; Université de Toulouse, Inserm, UPS; Toulouse France
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14
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Effect of training status on beta-range corticomuscular coherence in agonist vs. antagonist muscles during isometric knee contractions. Exp Brain Res 2017; 235:3023-3031. [DOI: 10.1007/s00221-017-5035-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 07/15/2017] [Indexed: 10/19/2022]
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Charissou C, Vigouroux L, Berton E, Amarantini D. Fatigue- and training-related changes in ‘beta’ intermuscular interactions between agonist muscles. J Electromyogr Kinesiol 2016; 27:52-9. [DOI: 10.1016/j.jelekin.2016.02.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Revised: 01/14/2016] [Accepted: 02/01/2016] [Indexed: 11/29/2022] Open
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Kline JE, Huang HJ, Snyder KL, Ferris DP. Cortical Spectral Activity and Connectivity during Active and Viewed Arm and Leg Movement. Front Neurosci 2016; 10:91. [PMID: 27013953 PMCID: PMC4785182 DOI: 10.3389/fnins.2016.00091] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 02/23/2016] [Indexed: 01/09/2023] Open
Abstract
Active and viewed limb movement activate many similar neural pathways, however, to date most comparison studies have focused on subjects making small, discrete movements of the hands and feet. The purpose of this study was to determine if high-density electroencephalography (EEG) could detect differences in cortical activity and connectivity during active and viewed rhythmic arm and leg movements in humans. Our primary hypothesis was that we would detect similar but weaker electrocortical spectral fluctuations and effective connectivity fluctuations during viewed limb exercise compared to active limb exercise due to the similarities in neural recruitment. A secondary hypothesis was that we would record stronger cortical spectral fluctuations for arm exercise compared to leg exercise, because rhythmic arm exercise would be more dependent on supraspinal control than rhythmic leg exercise. We recorded EEG data while ten young healthy subjects exercised on a recumbent stepper with: (1) both arms and legs, (2) just legs, and (3) just arms. Subjects also viewed video playback of themselves or another individual performing the same exercises. We performed independent component analysis, dipole fitting, spectral analysis, and effective connectivity analysis on the data. Cortical areas comprising the premotor and supplementary motor cortex, the anterior cingulate, the posterior cingulate, and the parietal cortex exhibited significant spectral fluctuations during rhythmic limb exercise. These fluctuations tended to be greater for the arms exercise conditions than for the legs only exercise condition, which suggests that human rhythmic arm movements are under stronger cortical control than rhythmic leg movements. We did not find consistent spectral fluctuations in these areas during the viewed conditions, but effective connectivity fluctuated at harmonics of the exercise frequency during both active and viewed rhythmic limb exercise. The right premotor and supplementary motor cortex drove the network. These results suggest that a similarly interconnected neural network is in operation during active and viewed human rhythmic limb movement.
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Affiliation(s)
- Julia E Kline
- Department of Biomedical Engineering, University of Michigan Ann Arbor, MI, USA
| | - Helen J Huang
- School of Kinesiology, University of Michigan Ann Arbor, MI, USA
| | | | - Daniel P Ferris
- Department of Biomedical Engineering, University of MichiganAnn Arbor, MI, USA; School of Kinesiology, University of MichiganAnn Arbor, MI, USA
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Cremoux S, Amarantini D, Tallet J, Dal Maso F, Berton E. Increased antagonist muscle activity in cervical SCI patients suggests altered reciprocal inhibition during elbow contractions. Clin Neurophysiol 2016; 127:629-634. [DOI: 10.1016/j.clinph.2015.03.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 03/03/2015] [Accepted: 03/31/2015] [Indexed: 10/23/2022]
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Training-related changes in the EMG–moment relationship during isometric contractions: Further evidence of improved control of muscle activation in strength-trained men? J Electromyogr Kinesiol 2015; 25:697-702. [DOI: 10.1016/j.jelekin.2015.04.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2008] [Revised: 04/01/2015] [Accepted: 04/02/2015] [Indexed: 11/24/2022] Open
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Fatigue-related electromyographic coherence and phase synchronization analysis between antagonistic elbow muscles. Exp Brain Res 2014; 233:971-82. [PMID: 25515087 DOI: 10.1007/s00221-014-4172-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Accepted: 12/01/2014] [Indexed: 10/24/2022]
Abstract
The aim of this study was to examine coherence and phase synchronization between antagonistic elbow muscles and thus to explore the coupling and common neural inputs of antagonistic elbow muscles during sustained submaximal isometric fatiguing contraction. Fifteen healthy male subjects sustained an isometric elbow flexion at 20 % maximal level until exhaustion, while surface electromyographic signals (sEMG) were collected from biceps brachii (BB) and triceps brachii (TB). sEMG signals were divided into the first half (stage 1 with minimal fatigue) and second half (stage 2 with severe fatigue) of the contraction. Coherence and phase synchronization analysis was conducted between sEMG of BB and TB, and coherence value and phase synchronization index in alpha (8-12 Hz), beta (15-35 Hz) and gamma (35-60 Hz) frequency bands were obtained. Significant increase in EMG-EMG coherence and phase synchronization index in alpha and beta frequency bands between antagonistic elbow flexion muscles was observed all increased in stage 2 compared to stage 1. Coupling of EMG activities between antagonistic muscles increased as a result of fatigue caused by 20 % maximal level sustained isometric elbow flexion, indicating the increased interconnection between synchronized cortical neurons and the motoneuron pool of BB and TB, which may be cortical in origin. This increased coupling may help to maintain coactivation level so as to ensure joint stability on the basis of maintaining the joint force output.
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Fry A, Vogt T, Folland JP. Does sensorimotor cortex activity change with quadriceps femoris torque output? A human electroencephalography study. Neuroscience 2014; 275:540-8. [PMID: 24993474 DOI: 10.1016/j.neuroscience.2014.06.044] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Revised: 06/18/2014] [Accepted: 06/23/2014] [Indexed: 11/25/2022]
Abstract
Encoding muscular force output during voluntary contractions is widely perceived to result, at least in part, from modulations in neuronal activity within the sensorimotor cortex. However the underlying electrophysiological phenomena associated with increased force output remains unclear. This study directly assessed sensorimotor cortex activity using electroencephalography (EEG) in humans performing isometric knee-extensions at a range of discrete torque levels. Fifteen healthy males (age 24 (s=5) years) completed one familiarization and one experimental trial. Participants performed a cyclic series of 60 isometric knee-extension contractions with the right leg, including 15 contractions of a 5-s duration at each of four discrete torque levels: 15%, 30%, 45% and 60% of maximal voluntary torque (MVT). Isometric knee-extension torque, quadriceps electromyography and EEG were recorded at rest and throughout all the contractions. EEG (0.5-50 Hz) was collected using a 32-channel active-electrode cap. A voxel-based low-resolution brain electromagnetic tomography (LORETA) analysis calculated cortical activation within the sensorimotor cortex (one of 27 MNI coordinates) for the entire 0.5-50-Hz range (cortical current density (CCD)), as well as for each constituent frequency band in this range (delta, theta, alpha, beta and gamma). Gamma band (30-50 Hz) cortical activity increased with contraction torque (analysis of variance [ANOVA], P=0.03). Conversely, activity within the other frequency bands was not modulated by torque (P≥0.09), nor was overall CCD (P=0.11). Peripheral neuromuscular activation (quadriceps electromyography (EMG) amplitude) demonstrated distinct increases between each torque level (P<0.01). In conclusion, sensorimotor cortical activity within the gamma band demonstrated an overall increase with contraction torque, whereas both CCD and each of the other constituent frequency bands were not modulated by increments in torque magnitude during isometric knee-extension contractions up to 60%MVT.
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Affiliation(s)
- A Fry
- School of Sport, Exercise and Health Sciences, Loughborough University, UK.
| | - T Vogt
- Institute of Movement and Neurosciences, German Sport University Cologne, Germany.
| | - J P Folland
- School of Sport, Exercise and Health Sciences, Loughborough University, UK.
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Cremoux S, Tallet J, Berton E, Dal Maso F, Amarantini D. Motor-related cortical activity after cervical spinal cord injury: multifaceted EEG analysis of isometric elbow flexion contractions. Brain Res 2013; 1533:44-51. [PMID: 23939224 DOI: 10.1016/j.brainres.2013.08.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Revised: 08/01/2013] [Accepted: 08/02/2013] [Indexed: 10/26/2022]
Abstract
Electroencephalographic (EEG) studies have well established that motor cortex (M1) activity ~20 Hz decreases during muscular contraction and increases as soon as contraction stops, which are known as event-related desynchronization (ERD) and event-related synchronization (ERS), respectively. ERD is supposed to reflect M1 activation, sending information to recruited muscles, while the process underlying ERS is interpreted either as active cortical inhibition or as processing of sensory inputs. Investigation of the process behind ERD/ERS in people with spinal cord injury (SCI) would be particularly relevant since their M1 remains effective despite decreased sensorimotor abilities. In this study, we recorded net joint torque and EEG in 6 participants with cervical SCI and 8 healthy participants who performed isometric elbow flexion at 3 force levels. Multifaceted EEG analysis was introduced to assess ERD/ERS according to their amplitude, frequency range and duration. The results revealed that net joint torque increased with the required force level for all participants and time to contraction inhibition was longer in the SCI group. At the cortical level, ERD/ERS frequency ranges increased with the required force level in all participants, indicating that the modulation of cortical activity with force level is preserved after SCI. However, ERS amplitude decreased only in SCI participants, which may be linked to delayed contraction inhibition. All in all, cortical modulation of frequency range and amplitude could reflect two different kinds of neural communication.
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Affiliation(s)
- Sylvain Cremoux
- Aix-Marseille Université, CNRS, ISM UMR 7287, 13288, Marseille cedex 09, France.
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