keyword
MENU ▼
Read by QxMD icon Read
search

Muscle synergies

keyword
https://www.readbyqxmd.com/read/28446586/muscle-synergies-obtained-from-comprehensive-mapping-of-the-primary-motor-cortex-forelimb-representation-using-high-frequency-long-duration-icms
#1
Sommer L Amundsen Huffmaster, Gustaf M Van Acker, Carl W Luchies, Paul D Cheney
Simplifying neuromuscular control for movement has previously been explored by extracting muscle synergies from voluntary movement electromyography (EMG) patterns. The purpose of this study was to investigate muscle synergies represented in EMG recordings associated with direct electrical stimulation of single sites in primary motor cortex (M1). We applied single electrode high-frequency, long-duration intracortical microstimulation (HFLD-ICMS) to the forelimb region of M1 in two rhesus macaques using parameters previously found to produce forelimb movements to stable spatial endpoints (90-150 Hz, 90-150 μA, 1000 ms stimulus train lengths)...
April 26, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28434583/a-proposal-for-new-neurorehabilitative-intervention-on-moebius-syndrome-patients-after-smile-surgery-proof-of-concept-based-on-mirror-neuron-system-properties-and-hand-mouth-synergistic-activity
#2
REVIEW
Pier Francesco Ferrari, Anna Barbot, Bernardo Bianchi, Andrea Ferri, Gioacchino Garofalo, Nicola Bruno, Gino Coudé, Chiara Bertolini, Martina Ardizzi, Ylenia Nicolini, Mauro Belluardo, Elisa De Stefani
Studies of the last twenty years on the motor and premotor cortices of primates demonstrated that the motor system is involved in the control and initiation of movements, and in higher cognitive processes, such as action understanding, imitation, and empathy. Mirror neurons are only one example of such theoretical shift. Their properties demonstrate that motor and sensory processing are coupled in the brain. Such knowledge has been also central for designing new neurorehabilitative therapies for patients suffering from brain injuries and consequent motor deficits...
May 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28415899/specific-muscle-synergies-in-national-elite-female-ice-hockey-players-in-response-to-unexpected-external-perturbation
#3
Minhee Kim, Yushin Kim, Hyeyoung Kim, BumChul Yoon
This study aimed to investigate specific muscle synergies in elite ice hockey players indicating highly developed postural control strategies used to restore balance against unexpected external perturbations. Seven elite athletes (EA) on the women's national ice hockey team and 7 non-athletes (NA) participated in this study. Based on trajectories of centre of mass (COM), analysis periods were divided into an initial phase (a balance disturbance after perturbation onset) and a reversal phase (a balance recovery response), respectively...
April 18, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28387687/vibro-tactile-and-auditory-balance-biofeedback-changes-muscle-activity-patterns-possible-implications-for-vestibular%C3%A2-implants
#4
John H J Allum, Flurin Honegger
BACKGROUND: The two different types of balance prostheses being developed, implants and vibro-tactile/auditory feedback prostheses, rely on different measures to prove efficacy (those based on vestibular ocular reflexes versus balance control, respectively). Here we provide evidence that examining muscle activity might provide a useful alternative for both. METHODS: The muscle activity of 6 bilateral vestibular loss (BVL) and 7 age-matched healthy controls (HC) was examined while standing eyes closed on a foam support surface...
2017: Journal of Vestibular Research: Equilibrium & Orientation
https://www.readbyqxmd.com/read/28386223/assessment-of-upper-limb-motor-dysfunction-for-children-with-cerebral-palsy-based-on-muscle-synergy-analysis
#5
Lu Tang, Xiang Chen, Shuai Cao, De Wu, Gang Zhao, Xu Zhang
Muscle synergies are considered to be building blocks underlying motor behaviors. The goal of this study is to explore an objective and effective method to assess the upper limb motor dysfunction of cerebral palsy (CP) children from the aspect of muscle synergy analysis. Fourteen CP children and 10 typically developed (TD) children were recruited to perform three similar upper limb motion tasks related to the movements of elbow and shoulder joints, and surface electromyographic (sEMG) signals were recorded from 10 upper arm and shoulder muscles involved in the defined tasks...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28381488/increased-neuromuscular-consistency-in-gait-and-balance-after-partnered-dance-based-rehabilitation-in-parkinson-s-disease
#6
Jessica L Allen, J Lucas McKay, Andrew Sawers, Madeleine Eve Hackney, Lena H Ting
Here we examined changes in muscle coordination associated with improved motor performance after partnered, dance-based rehabilitation in individuals with mild-moderate idiopathic Parkinson's disease. Using motor module (a.k.a muscle synergy) analysis we identified changes in the modular control of overground walking and standing reactive balance that accompanied clinically meaningful improvements on behavioral measures of balance, gait, and disease symptoms after three-weeks of daily Adapted Tango classes...
April 5, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28361653/hand-function-in-muscular-dystrophies
#7
Mariana C Artilheiro, Cristina Dos Santos Cardoso de Sá, Francis M Fávero, Hanna C Wutzki, Maria Bernadete Dutra de Resende, Fátima A Caromano, Mariana C Voos
The aim of this study was to investigate the relationship between Performance of Upper Limb (PUL) and Jebsen-Taylor Test (JTT) to assess and monitor upper limb function progression in patients with muscular dystrophy. Thirty patients diagnosed with Duchenne muscular dystrophy, limb-girdle muscular dystrophy, Becker muscular dystrophy, myotonic dystrophy Type 1, and fascioscapulohumeral dystrophy were submitted to the shoulder, elbow, and wrist domains of PUL, and to JTT subtests. Spearman tests investigated the relationships between PUL and JTT total scores and domains...
April 2017: Perceptual and Motor Skills
https://www.readbyqxmd.com/read/28342289/tgf%C3%AE-taz-srf-signalling-regulates-vascular-smooth-muscle-cell-differentiation
#8
Christina Pagiatakis, Dandan Sun, Stephanie W Tobin, Tetsuaki Miyake, John C McDermott
Vascular smooth muscle cells (VSMCs) do not terminally differentiate; they modulate their phenotype between proliferative and differentiated states, which is a major factor contributing to vascular diseases. TGFβ signalling has been implicated in inducing VSMC differentiation, although the exact mechanism remains largely unknown. Our goal was to assess the network of transcription factors involved in the induction of VSMC differentiation, and to determine the role of TAZ in promoting the quiescent VSMC phenotype...
March 25, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28338394/inter-and-intra-subject-similarity-of-muscle-synergies-during-bench-press-with-slow-and-fast-velocity
#9
Afshin Samani, Mathias Kristiansen
We investigated the effect of low and high bar velocity on inter- and intra-subject similarity of muscle synergies during bench press. Thirteen trained male subjects underwent two exercise conditions, i.e. a slow and a fast velocity bench press. Surface electromyography was recorded from thirteen muscles and muscle synergies were extracted using a non-negative matrix factorization algorithm. The intra-subject similarity across conditions and inter-subject similarity within conditions were computed for muscle synergy vectors and activation coefficients...
March 24, 2017: Motor Control
https://www.readbyqxmd.com/read/28324949/muscle-synergy-analysis-in-transtibial-amputee-during-ramp-ascending-activity
#10
P Mehryar, M S Shourijeh, H F Maqbool, M Torabi, A A Dehghani-Sanij
In developed countries, the highest number of amputees are elderly with transtibial amputation. Walking on inclined surfaces is difficult for amputees due to loss of muscle volume and strength thereby transtibial amputees (TA) rely on the intact limb to maintain stability. The aim of this study was to use the concatenated non-negative matrix factorization (CNMF) technique to calculate muscle synergy components and compare the difference in muscle synergies and their associated activation profiles in the healthy and amputee groups during ramp ascending (RA) activity...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268984/exploring-neuro-muscular-synergies-of-reaching-movements-with-unified-independent-component-analysis
#11
Fiorenzo Artoni, Elvira Pirondini, Alessandro Panarese, Silvestre Micera
The coordinated recruitment of group of muscles through muscles synergies is known to simplify the control of movements. However, how and to what extent such control scheme is encoded at a cortical level is poorly understood. So far, electroencephalography (EEG) and electromyography (EMG) have been used, separately, to investigate the cortical regions of the human brain which may be involved in activating muscle synergies. Here we aim at extending these results by looking for a hierarchical relationship between cortical and muscular sources of activity (neuro-muscular synergies) with a unified analysis of independent components (IC) simultaneously extracted from both EEG and EMG signals...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268653/analysis-of-muscle-synergy-for-evaluation-of-task-specific-performance-in-stroke-patients
#12
Si Li, Cheng Zhuang, Xiao Zhang, Chuanxin M Niu, Qing Xie, Ning Lan
Muscle synergy represents a central neural module that organizes and activates a group of muscles when performing a certain task. However, whether muscle synergy is a good physiological indicator of motor ability in task performance for patients suffering stroke is not clear. The purpose of this study is to understand how information of task-specific muscle synergy in healthy subjects and patients post stroke can be used to evaluate their motor ability, and further to assist motor rehabilitation for stroke patients...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268467/characterizing-muscular-activities-using-non-negative-matrix-factorization-from-emg-channels-for-driver-swings-in-golf
#13
Yasunori Ozaki, Ryosuke Aoki, Toshitaka Kimura, Youichi Takashima, Tomohiro Yamada
The goal of this study is to propose a data driven approach method to characterize muscular activities of complex actions in sports such as golf from a lot of EMG channels. Two problems occur in a many channel measurement. The first problem is that it takes a lot of time to check the many channel data because of combinatorial explosion. The second problem is that it is difficult to understand muscle activities related with complex actions. To solve these problems, we propose an analysis method of multi EMG channels using Non-negative Matrix Factorization and adopt the method to driver swings in golf...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227194/exploring-neuro-muscular-synergies-of-reaching-movements-with-unified-independent-component-analysis
#14
Fiorenzo Artoni, Elvira Pirondini, Alessandro Panarese, Silvestre Micera, Fiorenzo Artoni, Elvira Pirondini, Alessandro Panarese, Silvestre Micera, Elvira Pirondini, Alessandro Panarese, Fiorenzo Artoni, Silvestro Micera
The coordinated recruitment of group of muscles through muscles synergies is known to simplify the control of movements. However, how and to what extent such control scheme is encoded at a cortical level is poorly understood. So far, electroencephalography (EEG) and electromyography (EMG) have been used, separately, to investigate the cortical regions of the human brain which may be involved in activating muscle synergies. Here we aim at extending these results by looking for a hierarchical relationship between cortical and muscular sources of activity (neuro-muscular synergies) with a unified analysis of independent components (IC) simultaneously extracted from both EEG and EMG signals...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226835/analysis-of-muscle-synergy-for-evaluation-of-task-specific-performance-in-stroke-patients
#15
Si Li, Cheng Zhuang, Xiao Zhang, Chuanxin M Niu, Qing Xie, Ning Lan, Si Li, Cheng Zhuang, Xiao Zhang, Chuanxin M Niu, Qing Xie, Ning Lan, Chuanxin M Niu, Xiao Zhang, Cheng Zhuang, Si Li, Ning Lan, Qing Xie
Muscle synergy represents a central neural module that organizes and activates a group of muscles when performing a certain task. However, whether muscle synergy is a good physiological indicator of motor ability in task performance for patients suffering stroke is not clear. The purpose of this study is to understand how information of task-specific muscle synergy in healthy subjects and patients post stroke can be used to evaluate their motor ability, and further to assist motor rehabilitation for stroke patients...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226831/muscle-synergy-analysis-in-transtibial-amputee-during-ramp-ascending-activity
#16
P Mehryar, M S Shourijeh, H F Maqbool, M Torabi, A A Dehghani-Sanij, P Mehryar, M S Shourijeh, H F Maqbool, M Torabi, A A Dehghani-Sanij, A A Dehghani-Sanij, M S Shourijeh, P Mehryar, M Torabi, H F Maqbool
In developed countries, the highest number of amputees are elderly with transtibial amputation. Walking on inclined surfaces is difficult for amputees due to loss of muscle volume and strength thereby transtibial amputees (TA) rely on the intact limb to maintain stability. The aim of this study was to use the concatenated non-negative matrix factorization (CNMF) technique to calculate muscle synergy components and compare the difference in muscle synergies and their associated activation profiles in the healthy and amputee groups during ramp ascending (RA) activity...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226640/characterizing-muscular-activities-using-non-negative-matrix-factorization-from-emg-channels-for-driver-swings-in-golf
#17
Yasunori Ozaki, Ryosuke Aoki, Toshitaka Kimura, Youichi Takashima, Tomohiro Yamada, Yasunori Ozaki, Ryosuke Aoki, Toshitaka Kimura, Youichi Takashima, Tomohiro Yamada, Yasunori Ozaki, Youichi Takashima, Tomohiro Yamada, Toshitaka Kimura, Ryosuke Aoki
The goal of this study is to propose a data driven approach method to characterize muscular activities of complex actions in sports such as golf from a lot of EMG channels. Two problems occur in a many channel measurement. The first problem is that it takes a lot of time to check the many channel data because of combinatorial explosion. The second problem is that it is difficult to understand muscle activities related with complex actions. To solve these problems, we propose an analysis method of multi EMG channels using Non-negative Matrix Factorization and adopt the method to driver swings in golf...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28220067/shared-and-task-specific-muscle-synergies-during-normal-walking-and-slipping
#18
Mohammad Moein Nazifi, Han Ul Yoon, Kurt Beschorner, Pilwon Hur
Falling accidents are costly due to their prevalence in the workplace. Slipping has been known to be the main cause of falling. Understanding the motor response used to regain balance after slipping is crucial to developing intervention strategies for effective recovery. Interestingly, studies on spinalized animals and studies on animals subjected to electrical microstimulation have provided major evidence that the Central Nervous System (CNS) uses motor primitives, such as muscle synergies, to control motor tasks...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28158258/comparison-of-muscle-synergies-for-running-between-different-foot-strike-patterns
#19
Koji Nishida, Shota Hagio, Benio Kibushi, Toshio Moritani, Motoki Kouzaki
It is well known that humans run with a fore-foot strike (FFS), a mid-foot strike (MFS) or a rear-foot strike (RFS). A modular neural control mechanism of human walking and running has been discussed in terms of muscle synergies. However, the neural control mechanisms for different foot strike patterns during running have been overlooked even though kinetic and kinematic differences between different foot strike patterns have been reported. Thus, we examined the differences in the neural control mechanisms of human running between FFS and RFS by comparing the muscle synergies extracted from each foot strike pattern during running...
2017: PloS One
https://www.readbyqxmd.com/read/28144794/tuning-of-muscle-synergies-during-walking-along-rectilinear-and-curvilinear-trajectories-in-humans
#20
Noelia Chia Bejarano, Alessandra Pedrocchi, Antonio Nardone, Marco Schieppati, Walter Baccinelli, Marco Monticone, Giancarlo Ferrigno, Simona Ferrante
The aim of this study was to develop a methodology based on muscle synergies to investigate whether rectilinear and curvilinear walking shared the same neuro-motor organization, and how this organization was fine-tuned by the walking condition. Thirteen healthy subjects walked on rectilinear and curvilinear paths. Electromyographic data from thirteen back and lower-limb muscles were acquired, together with kinematic data using inertial sensors. Four macroscopically invariant muscle synergies, extracted through non-negative matrix factorization, proved a shared modular organization across conditions...
May 2017: Annals of Biomedical Engineering
keyword
keyword
67019
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"