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Electromyogram

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1. Adaptive Windowing Framework for Surface Electromyogram-Based Pattern Recognition System for Transradial Amputees (PubMed)

Adaptive Windowing Framework for Surface Electromyogram-Based Pattern Recognition System for Transradial Amputees Electromyogram (EMG)-based Pattern Recognition (PR) systems for upper-limb prosthesis control provide promising ways to enable an intuitive control of the prostheses with multiple degrees of freedom and fast reaction times. However, the lack of robustness of the PR systems may limit their usability. In this paper, a novel adaptive time windowing framework is proposed to enhance

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2018 Sensors (Basel, Switzerland)

2. Relationship Between Electromyogram Spectrum Parameters and the Tension-Time Index During Incremental Exercise in Trained Subjects (PubMed)

Relationship Between Electromyogram Spectrum Parameters and the Tension-Time Index During Incremental Exercise in Trained Subjects The inspiratory muscle tension-time index TT0.1 (given by P0.1/PImax x TI/TTOT) could be used to reliably assess inspiratory muscle activity during exercise. So far, the correlation between the TT0.1 and diaphragmatic activity has not been measured and the TT0.1 has not been compared with other measurements of the inspiratory muscle load

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2018 Journal of sports science & medicine

3. Parameters of Surface Electromyogram Suggest That Dry Immersion Relieves Motor Symptoms in Patients With Parkinsonism (PubMed)

Parameters of Surface Electromyogram Suggest That Dry Immersion Relieves Motor Symptoms in Patients With Parkinsonism Dry immersion (DI) is acknowledged as a reliable space flight analog condition. At DI, subject is immersed in water being wrapped in a waterproof film to imitate microgravity (μG). Microgravity is known to decrease muscle tone due to deprivation of the sensory stimuli that activate the reflexes that keep up the muscle tone. In contrary, parkinsonian patients are characterized (...) by elevated muscle tone, or rigidity, along with rest tremor and akinesia. We hypothesized that DI can diminish the elevated muscle tone and/or the tremor in parkinsonian patients. Fourteen patients with Parkinson's disease (PD, 10 males, 4 females, 47-73 years) and 5 patients with vascular parkinsonism (VP, 1 male, 4 females, 65-72 years) participated in the study. To evaluate the effect of DI on muscles' functioning, we compared parameters of surface electromyogram (sEMG) measured before and after

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2018 Frontiers in neuroscience

4. Relationship between Isometric Muscle Force and Fractal Dimension of Surface Electromyogram (PubMed)

Relationship between Isometric Muscle Force and Fractal Dimension of Surface Electromyogram The relationship between fractal dimension of the surface electromyogram (sEMG) and the intensity of muscle contraction is still controversial in simulated and experimental conditions. To support the use of fractal analysis to investigate myoelectric fatigue, it is crucial to establish the interdependence between fractal dimension and muscle contraction intensity. We analyzed the behavior of fractal

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2018 BioMed research international

5. The Effect of Frontal Electromyogram (F-EMG) Activity on the Entropy Index Behavior During General Anesthesia

The Effect of Frontal Electromyogram (F-EMG) Activity on the Entropy Index Behavior During General Anesthesia The Effect of Frontal Electromyogram (F-EMG) Activity on the Entropy Index Behavior During General Anesthesia - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (...) (100). Please remove one or more studies before adding more. The Effect of Frontal Electromyogram (F-EMG) Activity on the Entropy Index Behavior During General Anesthesia The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. of clinical studies and talk to your health care provider before participating. Read our for details. ClinicalTrials.gov Identifier

2017 Clinical Trials

6. The Effect of Electromyogram (EMG) Activity on Anesthetic Depth Monitoring

The Effect of Electromyogram (EMG) Activity on Anesthetic Depth Monitoring The Effect of Electromyogram (EMG) Activity on Anesthetic Depth Monitoring - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (100). Please remove one or more studies before adding more (...) . The Effect of Electromyogram (EMG) Activity on Anesthetic Depth Monitoring The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our for details. ClinicalTrials.gov Identifier: NCT03230929 Recruitment Status : Completed First Posted : July 27, 2017 Last Update Posted : April 6, 2018 Sponsor: Pusan National University Yangsan Hospital Information provided

2017 Clinical Trials

7. Cardiovascular Variability, Heart Rate Response, and Electromyogram Power Associated With Periodic Leg Movements.

Cardiovascular Variability, Heart Rate Response, and Electromyogram Power Associated With Periodic Leg Movements. Cardiovascular Variability, Heart Rate Response, and Electromyogram Power Associated With Periodic Leg Movements. - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved (...) studies (100). Please remove one or more studies before adding more. Cardiovascular Variability, Heart Rate Response, and Electromyogram Power Associated With Periodic Leg Movements. (PLMS) The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our for details. ClinicalTrials.gov Identifier: NCT03076541 Recruitment Status : Completed First Posted : March 10

2017 Clinical Trials

8. Tonic Electromyogram Density in Multiple System Atrophy with Predominant Parkinsonism and Parkinson's Disease (PubMed)

Tonic Electromyogram Density in Multiple System Atrophy with Predominant Parkinsonism and Parkinson's Disease Both Parkinson's disease (PD) and multiple system atrophy (MSA) have associated sleep disorders related to the underlying neurodegenerative pathology. Clinically, MSA with predominant parkinsonism (MSA-P) resembles PD in the manifestation of prominent parkinsonism. Whether the amount of rapid eye movement (REM) sleep without atonia could be a potential marker for differentiating MSA-P (...) from PD has not been thoroughly investigated. This study aimed to examine whether sleep parameters could provide a method for differentiating MSA-P from PD.This study comprised 24 MSA-P patients and 30 PD patients, and they were of similar age, gender, and REM sleep behavior disorder (RBD) prevalence. All patients underwent clinical evaluation and one night of video-polysomnography recording. The tonic and phasic chin electromyogram (EMG) activity was manually quantified during REM sleep of each

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2017 Chinese medical journal

9. Changes in tibialis anterior architecture affect the amplitude of surface electromyograms (PubMed)

Changes in tibialis anterior architecture affect the amplitude of surface electromyograms Variations in the amplitude of surface electromyograms (EMGs) are typically considered to advance inferences on the timing and degree of muscle activation in different circumstances. Surface EMGs are however affected by factors other than the muscle neural drive. In this study, we use electrical stimulation to investigate whether architectural changes in tibialis anterior (TA), a key muscle for balance

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2017 Journal of neuroengineering and rehabilitation

10. Electromyogram-evoked focal myositis (PubMed)

Electromyogram-evoked focal myositis Focal myositis is a rarely reported inflammatory disease of skeletal muscle, particularly of an extremity. It is often misinterpreted as an infectious syndrome, leading to prolonged antibiotic use and a delay in immunosuppressive therapy. Without a confirmed etiology to date, we present a case of recurrent focal myositis following an electromyogram.

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2017 Proceedings (Baylor University. Medical Center)

11. Alterations in Spectral Attributes of Surface Electromyograms after Utilization of a Foot Drop Stimulator during Post-Stroke Gait (PubMed)

Alterations in Spectral Attributes of Surface Electromyograms after Utilization of a Foot Drop Stimulator during Post-Stroke Gait A foot drop stimulator (FDS) is a rehabilitation intervention that stimulates the common peroneal nerve to facilitate ankle dorsiflexion at the appropriate time during post-stroke hemiplegic gait. Time-frequency analysis (TFA) of non-stationary surface electromyograms (EMG) and spectral variables such as instantaneous mean frequency (IMNF) can provide valuable

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2017 Frontiers in neurology

12. Improving the Robustness of Electromyogram-Pattern Recognition for Prosthetic Control by a Postprocessing Strategy (PubMed)

Improving the Robustness of Electromyogram-Pattern Recognition for Prosthetic Control by a Postprocessing Strategy Electromyogram (EMG) contains rich information for motion decoding. As one of its major applications, EMG-pattern recognition (PR)-based control of prostheses has been proposed and investigated in the field of rehabilitation robotics for decades. These prostheses can offer a higher level of dexterity compared to the commercially available ones. However, limited progress has been

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2017 Frontiers in neurorobotics

13. Effects of mental practice combined with electromyogram-triggered electrical stimulation for upper extremity function in stroke patients (PubMed)

Effects of mental practice combined with electromyogram-triggered electrical stimulation for upper extremity function in stroke patients [Purpose] To investigate the effect of mental practice combined with electromyogram-triggered electrical stimulation (MP-EMG ES) on the upper extremity of stroke patients. [Subjects and Methods] Participants were randomly assigned to experimental group or control group. The experimental group received MP-EMG ES plus conventional rehabilitation therapy for 5

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2017 Journal of physical therapy science

14. Difficulty Adaptation in a Competitive Arm Rehabilitation Game using Real-Time Control of Arm Electromyogram and Respiration (PubMed)

Difficulty Adaptation in a Competitive Arm Rehabilitation Game using Real-Time Control of Arm Electromyogram and Respiration Rehabilitation robots are often combined with serious games that motivate patients and keep them exercising at high intensities. A promising type of game are competitive rehabilitation games, but few difficulty adaptation algorithms have been presented for them. This paper thus presents the adaptation of difficulty in a competitive arm rehabilitation game based on two (...) physiological signals: respiration and electromyography of the posterior deltoid. It consists of three smaller studies: an open-loop respiration study, a closed-loop respiration study (where a controller attempts to maintain respiration rate at preset levels), and a closed-loop electromyogram study (where a controller attempts to keep the electromyogram at preset levels). The studies control two difficulty parameters based on the physiological responses of one of the two exercising participants, though

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2017 IEEE ... International Conference on Rehabilitation Robotics : [proceedings]

15. Chronic electromyograms in treadmill running SOD1 mice reveal early changes in muscle activation (PubMed)

Chronic electromyograms in treadmill running SOD1 mice reveal early changes in muscle activation The present study demonstrates that electromyograms (EMGs) obtained during locomotor activity in mice were effective for identification of early physiological markers of amyotrophic lateral sclerosis (ALS). These measures could be used to evaluate therapeutic intervention strategies in animal models of ALS. Several parameters of locomotor activity were shifted early in the disease time course (...) lateral sclerosis (ALS), a progressive neurodegenerative disease, we measured electromyogram (EMG) activity in hind limb muscles of SOD1G93A mice. By contrast to clinical diagnostic measures using EMGs, which are performed on quiescent patients, we monitored activity during treadmill running aiming to detect presymptomatic changes in motor patterning. Chronic EMG electrodes were implanted into vastus lateralis, biceps femoris posterior, lateral gastrocnemius and tibialis anterior in mice from

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2017 The Journal of physiology

16. Effect of motor imagery training and electromyogram-triggered neuromuscular electrical stimulation on lower extremity function in stroke patients: a pilot trial (PubMed)

Effect of motor imagery training and electromyogram-triggered neuromuscular electrical stimulation on lower extremity function in stroke patients: a pilot trial [Purpose] To investigate the effect of motor imagery training and electromyogram-triggered neuromuscular electrical stimulation (MIT-EMG NMES) on the lower extremity function of stroke patients. [Subjects and Methods] This study recruited eight patients with hemiplegia due to stroke. All patients received MIT-EMG NMES for 20 min daily

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2017 Journal of physical therapy science

17. Age-Associated Changes in the Spectral and Statistical Parameters of Surface Electromyogram of Tibialis Anterior (PubMed)

Age-Associated Changes in the Spectral and Statistical Parameters of Surface Electromyogram of Tibialis Anterior Age-related neuromuscular change of Tibialis Anterior (TA) is a leading cause of muscle strength decline among the elderly. This study has established the baseline for age-associated changes in sEMG of TA at different levels of voluntary contraction. We have investigated the use of Gaussianity and maximal power of the power spectral density (PSD) as suitable features to identify age (...) -associated changes in the surface electromyogram (sEMG). Eighteen younger (20-30 years) and 18 older (60-85 years) cohorts completed two trials of isometric dorsiflexion at four different force levels between 10% and 50% of the maximal voluntary contraction. Gaussianity and maximal power of the PSD of sEMG were determined. Results show a significant increase in sEMG's maximal power of the PSD and Gaussianity with increase in force for both cohorts. It was also observed that older cohorts had higher

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2016 BioMed research international

18. Modeling startle eyeblink electromyogram to assess fear learning (PubMed)

Modeling startle eyeblink electromyogram to assess fear learning Pavlovian fear conditioning is widely used as a laboratory model of associative learning in human and nonhuman species. In this model, an organism is trained to predict an aversive unconditioned stimulus from initially neutral events (conditioned stimuli, CS). In humans, fear memory is typically measured via conditioned autonomic responses or fear-potentiated startle. For the latter, various analysis approaches have been developed

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2016 Psychophysiology

19. Effects of Task-Oriented Training as an Added Treatment to Electromyogram-Triggered Neuromuscular Stimulation on Upper Extremity Function in Chronic Stroke Patients. (PubMed)

Effects of Task-Oriented Training as an Added Treatment to Electromyogram-Triggered Neuromuscular Stimulation on Upper Extremity Function in Chronic Stroke Patients. The purpose of the present study was to investigate the effects of electromyogram-triggered neuromuscular stimulation (EMG-stim) combined with task-oriented training (TOT) on upper extremity function in chronic stroke patients. Twenty chronic stroke patients were randomly assigned to either the intervention (n = 10) or control (n

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2016 Occupational therapy international

20. Limitations of Spectral Electromyogramic Analysis to Determine the Onset of Neuromuscular Fatigue Threshold during Incremental Ergometer Cycling (PubMed)

Limitations of Spectral Electromyogramic Analysis to Determine the Onset of Neuromuscular Fatigue Threshold during Incremental Ergometer Cycling Recently, a new method has been proposed to detect the onset of neuromuscular fatigue during an incremental cycling test by assessing the changes in spectral electromyographic (sEMG) frequencies within individual exercise periods of the test. The method consists on determining the highest power output that can be sustained without a significant

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2016 Journal of sports science & medicine

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