keyword
MENU ▼
Read by QxMD icon Read
search

semg

keyword
https://www.readbyqxmd.com/read/27909939/a-novel-fuzzy-approach-for-automatic-brunnstrom-stage-classification-using-surface-electromyography
#1
Luca Liparulo, Zhe Zhang, Massimo Panella, Xudong Gu, Qiang Fang
Clinical assessment plays a major role in post-stroke rehabilitation programs for evaluating impairment level and tracking recovery progress. Conventionally, this process is manually performed by clinicians using chart-based ordinal scales which can be both subjective and inefficient. In this paper, a novel approach based on fuzzy logic is proposed which automatically evaluates stroke patients' impairment level using single-channel surface electromyography (sEMG) signals and generates objective classification results based on the widely used Brunnstrom stages of recovery...
December 1, 2016: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/27902641/diaphragmatic-and-intercostal-electromyographic-activity-during-neostigmine-sugammadex-and-neostigmine-sugammadex-enhanced-recovery-after-neuromuscular-blockade-a-randomised-controlled-volunteer-study
#2
Guy Cammu, Tom Schepens, Nikolaas De Neve, Davina Wildemeersch, Luc Foubert, Philippe G Jorens
BACKGROUND: Electromyographic activity of the diaphragm (EMGdi) during weaning from mechanical ventilation is increased after sugammadex compared with neostigmine. OBJECTIVE: To determine the effect of neostigmine on EMGdi and surface EMG (sEMG) of the intercostal muscles during antagonism of rocuronium block with neostigmine, sugammadex and neostigmine followed by sugammadex. DESIGN: Randomised, controlled, double-blind study. SETTING: Intensive care research unit...
January 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/27858692/elbow-joint-angle-and-elbow-movement-velocity-estimation-using-narx-multiple-layer-perceptron-neural-network-model-with-surface-emg-time-domain-parameters
#3
Retheep Raj, K S Sivanandan
BACKGROUND: Estimation of elbow dynamics has been the object of numerous investigations. OBJECTIVE: In this work a solution is proposed for estimating elbow movement velocity and elbow joint angle from Surface Electromyography (SEMG) signals. METHODS: Here the Surface Electromyography signals are acquired from the biceps brachii muscle of human hand. Two time-domain parameters, Integrated EMG (IEMG) and Zero Crossing (ZC), are extracted from the Surface Electromyography signal...
November 11, 2016: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/27845347/gesture-recognition-by-instantaneous-surface-emg-images
#4
Weidong Geng, Yu Du, Wenguang Jin, Wentao Wei, Yu Hu, Jiajun Li
Gesture recognition in non-intrusive muscle-computer interfaces is usually based on windowed descriptive and discriminatory surface electromyography (sEMG) features because the recorded amplitude of a myoelectric signal may rapidly fluctuate between voltages above and below zero. Here, we present that the patterns inside the instantaneous values of high-density sEMG enables gesture recognition to be performed merely with sEMG signals at a specific instant. We introduce the concept of an sEMG image spatially composed from high-density sEMG and verify our findings from a computational perspective with experiments on gesture recognition based on sEMG images with a classification scheme of a deep convolutional network...
November 15, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27835831/spatial-distribution-of-surface-emg-on-trapezius-and-lumbar-muscles-of-violin-and-cello-players-in-single-note-playing
#5
Babak Afsharipour, Francesco Petracca, Mauro Gasparini, Roberto Merletti
Musicians activate their muscles in different patterns, depending on their posture, the instrument being played, and their experience level. Bipolar surface electrodes have been used in the past to monitor such activity, but this method is highly sensitive to the location of the electrode pair. In this work, the spatial distribution of surface EMG (sEMG) of the right trapezius and right and left erector spinae muscles were studied in 16 violin players and 11 cello players. Musicians played their instrument one string at a time in sitting position with/without backrest support...
December 2016: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/27827323/sequence-variation-at-klk-and-wfdc-clusters-and-its-association-to-semen-hyperviscosity-and-other-male-infertility-phenotypes
#6
Patrícia Isabel Marques, Filipa Fonseca, Ana Sofia Carvalho, Diana A Puente, Isabel Damião, Vasco Almeida, Nuno Barros, Alberto Barros, Filipa Carvalho, Mikel Azkargorta, Felix Elortza, Hugo Osório, Rune Matthiesen, Victor Quesada, Susana Seixas
STUDY QUESTION: Are kallikreins (KLKs), the whey-acidic-protein four-disulfide core domain (WFDCs) and their neighbors, semenogelins (SEMGs), known to play a role in the cascade of semen coagulation and liquefaction, associated with male infertility? SUMMARY ANSWER: Several KLK and SEMG variants are overrepresented among hyperviscosity, asthenozoospermia and oligozoospermia, supporting an effect of abnormal semen liquefaction on the loss of semen quality and in lowering male reproductive fitness...
November 7, 2016: Human Reproduction
https://www.readbyqxmd.com/read/27821933/the-effect-of-exercise-types-for-rotator-cuff-repair-patients-on-activities-of-shoulder-muscles-and-upper-limb-disability
#7
Jeong-Il Kang, Young-Jun Moon, Hyun Choi, Dae-Keun Jeong, Hye-Min Kwon, Jun-Su Park
[Purpose] This study investigated the effect on activities, shoulder muscle fatigue, upper limb disability of two exercise types performed by patients in the post- immobilization period of rotator cuff repair. [Subjects and Methods] The intervention program was performed by 20 patients from 6 weeks after rotator cuff repair. Ten subjects each were randomly allocated to a group performing open kinetic chain exercise and a group preforming closed kinetic chain exercise. Muscle activity and median frequency were measured by using sEMG and the Upper Extremity Function Assessment before and after conducting the intervention and changes in the results were compared...
October 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/27812671/oral-motor-and-electromyographic-characterization-of-patients-submitted-to-open-a-nd-closed-reductions-of-mandibular-condyle-fracture
#8
Amanda Pagliotto da Silva, Fernanda Chiarion Sassi, Claudia Regina Furquim de Andrade
Purpose: To characterize the oral-motor system of adults with mandibular condyle facture comparing the performance of individuals submitted to open reduction with internal fixation (ORIF) and closed reduction with mandibulomaxillary fixation (CRMMF). Methods: Study participants were 26 adults divided into three groups: G1 - eight individuals submitted to ORIF for correction of condyle fracture; G2 - nine individuals submitted to CRMMF for correction of condyle fracture; CG - nine healthy volunteers with no alterations of the orofacial myofunctional system...
September 2016: CoDAS
https://www.readbyqxmd.com/read/27810649/the-influence-of-digital-filter-type-amplitude-normalisation-method-and-co-contraction-algorithm-on-clinically-relevant-surface-electromyography-data-during-clinical-movement-assessments
#9
Daniel Devaprakash, Gillian J Weir, James J Dunne, Jacqueline A Alderson, Cyril J Donnelly
There is a large and growing body of surface electromyography (sEMG) research using laboratory-specific signal processing procedures (i.e., digital filter type and amplitude normalisation protocols) and data analyses methods (i.e., co-contraction algorithms) to acquire practically meaningful information from these data. As a result, the ability to compare sEMG results between studies is, and continues to be challenging. The aim of this study was to determine if digital filter type, amplitude normalisation method, and co-contraction algorithm could influence the practical or clinical interpretation of processed sEMG data...
December 2016: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/27810648/characteristics-of-emg-frequency-bands-in-temporomandibullar-disorders-patients
#10
Fabiano Politti, Claudia Casellato, Marcelo Martins Kalytczak, Marilia Barbosa Santos Garcia, Daniela Aparecida Biasotto-Gonzalez
The aim of the present study was to determine whether any specific frequency bands of surface electromyographic (sEMG) signals are more susceptible to alterations in patients with temporomandibular disorders (TMD), when compared with healthy subjects. Twenty-seven healthy adults (19 women and eight men; mean age: 23±6.68years) and 27 TMD patients (20 women and seven men; mean age: 24±5.89years) voluntarily participated in the experiment. sEMG data were recorded from the right and left masseter muscles (RM and LM) and the right and left anterior temporalis muscles (RT and LT) as the participants performed tests of chewing (CHW) and maximal clenching effort (MCE)...
December 2016: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/27810257/-clinical-practice-guidelines-irritable-bowel-syndrome-with-constipation-and-functional-constipation-in-adults-concept-diagnosis-and-healthcare-continuity-part-1-of-2
#11
F Mearin, C Ciriza, M Mínguez, E Rey, J J Mascort, E Peña, P Cañones, J Júdez
In this Clinical practice guide, an analysis is made of the diagnosis and treatment of adult patients with constipation and abdominal discomfort, under the spectrum of irritable bowel syndrome and functional constipation. These have an important personal, health and social impact, affecting the quality of life of these patients. In irritable bowel syndrome with a predominance of constipation, this is the predominant change in bowel movements, with recurrent abdominal pain, bloating and frequent abdominal distension...
October 31, 2016: Semergen
https://www.readbyqxmd.com/read/27792155/classification-of-anticipatory-signals-for-grasp-and-release-from-surface-electromyography
#12
Ho Chit Siu, Julie A Shah, Leia A Stirling
Surface electromyography (sEMG) is a technique for recording natural muscle activation signals, which can serve as control inputs for exoskeletons and prosthetic devices. Previous experiments have incorporated these signals using both classical and pattern-recognition control methods in order to actuate such devices. We used the results of an experiment incorporating grasp and release actions with object contact to develop an intent-recognition system based on Gaussian mixture models (GMM) and continuous-emission hidden Markov models (HMM) of sEMG data...
October 25, 2016: Sensors
https://www.readbyqxmd.com/read/27791976/foot-and-ankle-kinematics-and-dynamic-electromyography-quantitative-analysis-of-recovery-from-peroneal-neuropathy-in-a-professional-football-player
#13
Nikhil K Prasad, Krista A Coleman Wood, Robert J Spinner, Kenton R Kaufman
The assessment of neuromuscular recovery after peripheral nerve surgery has typically been a subjective physical examination. The purpose of this report was to assess the value of gait analysis in documenting recovery quantitatively. A professional football player underwent gait analysis before and after surgery for a peroneal intraneural ganglion cyst causing a left-sided foot drop. Surface electromyography (SEMG) recording from surface electrodes and motion parameter acquisition from a computerized motion capture system consisting of 10 infrared cameras were performed simultaneously...
2016: Journal of Surgical Orthopaedic Advances
https://www.readbyqxmd.com/read/27790083/surface-emg-based-sketching-recognition-using-two-analysis-windows-and-gene-expression-programming
#14
Zhongliang Yang, Yumiao Chen
Sketching is one of the most important processes in the conceptual stage of design. Previous studies have relied largely on the analyses of sketching process and outcomes; whereas surface electromyographic (sEMG) signals associated with sketching have received little attention. In this study, we propose a method in which 11 basic one-stroke sketching shapes are identified from the sEMG signals generated by the forearm and upper arm muscles from 4 subjects. Time domain features such as integrated electromyography, root mean square and mean absolute value were extracted with analysis windows of two length conditions for pattern recognition...
2016: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/27775573/preliminary-study-on-continuous-recognition-of-elbow-flexion-extension-using-semg-signals-for-bilateral-rehabilitation
#15
Zhibin Song, Songyuan Zhang
Surface electromyography (sEMG) signals are closely related to the activation of human muscles and the motion of the human body, which can be used to estimate the dynamics of human limbs in the rehabilitation field. They also have the potential to be used in the application of bilateral rehabilitation, where hemiplegic patients can train their affected limbs following the motion of unaffected limbs via some rehabilitation devices. Traditional methods to process the sEMG focused on motion pattern recognition, namely, discrete patterns, which are not satisfactory for use in bilateral rehabilitation...
October 19, 2016: Sensors
https://www.readbyqxmd.com/read/27742497/validity-and-reliability-of-surface-electromyography-in-the-assessment-of-primary-muscle-tension-dysphonia
#16
Seyyedeh Maryam Khoddami, Saeed Talebian, Farzad Izadi, Noureddin Nakhostin Ansari
OBJECTIVE: The study aims to evaluate the reliability and the discriminative validity of surface electromyography (sEMG) in the assessment of patients with primary muscle tension dysphonia (MTD). STUDY DESIGN: The study design is cross-sectional. METHODS: Fifteen patients with primary MTD (mean age: 34.07 ± 10.99 years) and 15 healthy volunteers (mean age: 34.53 ± 10.63 years) were included. All participants underwent evaluation of sEMG to record the electrical activity of the thyrohyoid and cricothyroid muscles...
October 11, 2016: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/27727120/comparison-of-algorithms-to-quantify-muscle-fatigue-in-upper-limb-muscles-based-on-semg-signals
#17
Lorenz Kahl, Ulrich G Hofmann
This work compared the performance of six different fatigue detection algorithms quantifying muscle fatigue based on electromyographic signals. Surface electromyography (sEMG) was obtained by an experiment from upper arm contractions at three different load levels from twelve volunteers. Fatigue detection algorithms mean frequency (MNF), spectral moments ratio (SMR), the wavelet method WIRM1551, sample entropy (SampEn), fuzzy approximate entropy (fApEn) and recurrence quantification analysis (RQA%DET) were calculated...
October 7, 2016: Medical Engineering & Physics
https://www.readbyqxmd.com/read/27705961/muscle-tendon-units-localization-and-activation-level-analysis-based-on-high-density-surface-emg-array-and-nmf-algorithm
#18
Chengjun Huang, Xiang Chen, Shuai Cao, Xu Zhang
OBJECTIVE: Some skeletal muscles can be subdivided into smaller segments called muscle-tendon units (MTUs). The purpose of this paper is to propose a framework to locate the active region of the corresponding MTUs within a single skeletal muscle and to analyze the activation level varieties of different MTUs during a dynamic motion task. APPROACH: Biceps brachii and gastrocnemius were selected as targeted muscles and three dynamic motion tasks were designed and studied...
December 2016: Journal of Neural Engineering
https://www.readbyqxmd.com/read/27695905/the-efficacy-of-post-operative-devices-following-knee-arthroscopic-surgery-a-systematic-review
#19
Corey T Gatewood, Andrew A Tran, Jason L Dragoo
PURPOSE: There is a wide array of device modalities available for post-operative treatment following arthroscopic knee surgery; however, it remains unclear which types and duration of modality are the most effective. This systematic review aimed to investigate the efficacy of device modalities used following arthroscopic knee surgery. METHODS: A systematic search of the literature was performed on: PubMed; Scopus; MEDLINE; EMBASE; PEDro; SportDiscus; and CINAHL databases (1995-2015) for clinical trials using device modalities following arthroscopic knee surgery: cryotherapy, continuous passive motion (CPM), neuromuscular electrical stimulation (NMES), surface electromyographic (sEMG) biofeedback and shockwave therapy (ESWT)...
October 1, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27683840/acute-effects-of-expiratory-positive-airway-pressure-epap-on-different-levels-in-ventilation-and-electrical-activity-of-sternocleidomastoid-and-parasternal-muscles-in-chronic-obstructive-pulmonary-disease-copd-patients-a-randomized-controlled-trial
#20
Dannuey M Cardoso, Guilherme A F Fregonezi, Renan T Jost, Ricardo Gass, Cristine L Alberton, Isabella M Albuquerque, Dulciane N Paiva, Sérgio S M Barreto
Objective: To investigate the acute effects of EPAP on the activity of sternocleidomastoid (SCM), parasternal muscles and ventilatory parameters in COPD patients. Method: Twenty-four patients with COPD were studied using surface electromyography (sEMG) and a ventilometer. Patients were randomly assigned to EPAP 10 cmH2O-EPAP10 or 15 cmH2O-EPAP15 for 20 minutes. Results: The parasternal muscle sEMG activity increased during EPAP10 and EPAP15; however, a greater and significant increase was observed with EPAP10 (mean between-group difference: 12...
September 16, 2016: Brazilian Journal of Physical Therapy
keyword
keyword
105387
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"