Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 44 for “"Electromyographic (EMG)"”.
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Hand Gesture Recognition via Electromyographic (EMG) Armband for CAD Software CONTROL
… useful biosignal for this task is the forearm Electromyographic (EMG) Signal. This signal reflects the contraction state of the forearm muscles. EMG signals are already being used in prosthetics to help amputees have more natural control over their prosthetic limbs. They can also be used for …
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Locus of Control Differences in the Acquisition of Electromyographic Biofeedback Training and in Self-Reported Relaxation Under True and False Feedback Conditions.
… 1966) and the ability to learn to relax via Electromyographic (EMG) biofeedback training. The main purpose was to explore the notion, reviewed by Lefcourt (1972), that certain cognitive properties are associated with locus of control. The proposal was that these cognitive properties are …
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Low-frequency activity in the primate superior colliculus activates a head turning synergy: evidence using neck EMG recordings
… simultaneously recorded dSC unit discharge and electromyographic (EMG) activity of dorsal neck muscles from three rhesus monkeys performing a gap-saccade paradigm with different levels of reward expectancy. As reward expectancy increased, low-frequency dSC activity increased and EMG activity …
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Effect of Shoulder Angle on the Activation Pattern of the Elbow Extensors During a Submaximal Isometric Fatiguing Contraction
… to examine the effect of shoulder angle on the electromyographic (EMG) activation pattern of the elbow extensors during a fatiguing contraction. METHODS: Ten young men (23.5 ± 1.7) were tested on two occasions with the shoulder at either 0° or 90° of flexion. Baseline isometric maximum voluntary …
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Use of Motion Artifact for the Detection of Respiratory Effort in Polysomnography
… by using the movement artifact found in the electromyographic (EMG) and electrocardiographic (ECG) recordings used in polysomnography was investigated. The resulting signals were compared to effort measured with respiratory inductance plethysmography (RIP). The EMG and ECG signals were …
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The effect of perturbation warning on attention switching abilities during dual-task performance in young and older adults
… translation. Performance was quantified through electromyographic (EMG) recordings of the lower limb muscles, while the ability to switch attention between tasks was determined by tracking task error. Providing warning of an upcoming loss of balance resulted in both young and older adults …
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Electromyographic Characterization in an Animal model of Dystonia
… treated jjs and non-jaundiced (Nj) littermates. Electromyographic (EMG) activity was recorded from antagonistic hip muscles in dystonic and in normal appearing rats. Raw EMG signals were decomposed using the Discrete Wavelet Transform based multi-resolution analysis, and signal coefficients …
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Ankle mechanical impedance under muscle fatigue
… of freedom. Median frequencies of surface electromyographic (EMG) signals collected from tibialis and triceps surae muscle groups were evaluated to assess muscle fatigue. Using a standard multi-input and multi-output stochastic impedance identification method, multivariable ankle mechanical …
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An acoustic study of coarticulation patterns in Turkish and English
… Most of the previous studies were based electromyographic (EMG) signals generated by upper and lower lip movements. Not only is such methodology very cumbersome and impedes research, but also the equipment attached to the speakers' mouth to obtain the measurements is likely to induce the …
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Electrophysiological Analysis in an Animal Model of Dystonia
… multi-faceted approach was pursued starting with electromyographic (EMG) analysis for animal model validation, gait analysis for dystonia quantification, and development of a novel stereotaxic apparatus for recording brain activity during awake conditions. The later half of the project was focused …
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Subtle, intimate interfaces for mobile human computer interaction
… that detects motionless gestures through electromyographic (EMG) sensing for subtle input and provides tactile output;
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Preliminary investigation of the use of electromyographic signal for the control of a prosthetic ankle
… control and active prosthetic elbows under electromyographic (EMG) based control. In this paper, an investigation of methods for collecting EMG and ankle angle data are reviewed and a preliminary correlation of the two is developed. Experimental hardware has been designed to facilitate the …
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The effect of hip position and Emg biofeedback training on selectively increasing the vastus medialis oblique in relation to the vastus lateralis
… VMO resulting in a smaller VMO:VL ratio. Several electromyographic (EMG) studies have defined specific limb positions (such as external rotation of the hip) that preferentially activate the VMO. However, there has been no literature to show that preferential activation of the VMO successfully …
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An Electromyographical Analysis of Shoulder and Trunk Muscles During Chest Press on Stable and Unstable Platforms
… (MVC), 75% MVC, and 50% MVC while mean and peak electromyographic (EMG) output and mean force output of various muscles were measured. The unstable condition produced a significant decrease in MVC force output and agonist EMG activation at MVC and submaximal intensities. A significant increase in …
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Biomechanical model of the shoulder joint
… for each activity. Using the same five subjects, electromyographic (EMG) muscle activation was measured for the same five activities. Both surface and intra-muscular fine wire electrode techniques were used. Eight muscles including infraspinatus, subscapularis and supraspinatus were instrumented. …
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Approximate credibility intervals on electromyographic decomposition algorithms within a Bayesian framework
… using independent component analysis with electromyographic data. Blind source separation (BSS) algorithms, such as independent component analysis (ICA), are often used to solve the inverse problem arising when, for example, attempting to retrieve the activation patterns of motor units …
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Development of a low-cost high-impact resistant compliant myoelectric prosthetic hand
… more impact resistant and the integration of electromyographic (EMG) motor control and sensory substitution. The mechanism of our design replaces both the rigid input and coupler links with a monolithic compliant bone, and replaces the follower link with three layers of pre-stressed spring …
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Restoring bladder function by promoting neuronal regeneration
… in significant reductions in dysfunctional EUS electromyographic (EMG) activity, and normalization of bladder threshold volumes and residual volumes. To examine how artemin facilitates regeneration of primary afferents across the DREZ, we studied post-injury expression of CSPGs in the DREZ …
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Development of a Myoelectric Detection Circuit Platform for Computer Interface Applications
… myoelectric detection circuit, which can measure electromyographic (EMG) signals produced by contracting muscles through specialized electrodes, and convert the signals into a usable form through an analog circuit. With the goal of making a general-purpose myoelectric detection circuit platform …
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Estimating Lumbar Spinal Loads During a Golf Swing Using an EMG -Assisted Optimization Model Approach
… trunk muscles during a golf swing using surface electromyographic (EMG) techniques. Data were collected from five college golfers (average handicap = 0.8, SD = 1.1). Four S-VHS camcorders and two force plates were used to obtain the 3-D kinetics and kinematics of the lower trunk. The EMG-assisted …
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