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.
Results
Showing 1 to 20 of 32 for “"Electromyogram"”.
-
Human readaptation to normal gravity following short-term simulated Martian gravity exposure and the effectiveness of countermeasures
… by examining the ground reaction force, muscle electromyogram, and joint kinematics of the lower body extremities. The "Moonwalker II" simulator, designed and developed with features such as modularity, stability, and versatility, closely simulates a partial gravity environment on the lower …
-
Investigation of the interaction between corticomuscular coherence, motor precision and perceived difficulty in wrist flexion and extension
… between the electroencephalogram (EEG) and electromyogram (EMG) recorded during isometric force production, reflects the functional connectivity between cortex and muscle. A single muscle (flexor digitorum superficialis) study suggests a positive correlation between 15-35 Hz (beta) CMC and …
-
Trauma and psychophysiologic reactivity: menstrual phase, posttraumatic stress disorder, and performance on a loud tones task
… (as measured using the left orbicularis electromyogram (O-EMG) measure) than participants in the trauma control group for. Considerations are made for demographics, sample size, and the number of potential underlying mechanisms for PTSD.
-
Sensory modulation of muscle synergies for motor adaptation during natural behaviors
… synergies. Previous studies have shown that electromyogram (EMG) signals collected from many muscles during natural behaviors can be reconstructed by linearly combining a few synergies, identified by the non-negative matrix factorization algorithm. But to what extent synergies are neural …
-
Muscle guarding during Kt-1000 testing as measured by electromyography
… muscles which cross the injured knee by an electromyogram (EMG). The muscles being tested are the Semimembranosis (SM), the Rectus femoris (RF), the Biceps femoris (BF), the lateral head of the Gastrocnemius (LG), and the medial head of the Gastrocnemius. The resting test (Zero Newtons) …
-
Kinematic study of human ankle control during walking
… designed for rehabilitation purposes. The electromyogram of anterior tibialis, peroneus longus, and gastrocnemius muscles was also recorded. Results showed that all subjects plantarflexed their foot at a higher velocity after heel-strike while walking than when moving at their maximum …
-
The psychophysiology of risk processing and decision making at a regional stock exchange
… (ECG), electroencephalogram (EEG), electromyogram (EMG), and temperature (Temp)-of monetarily motivated professionals making high pressure decisions. From these signals I estimate underlying physiological features, such as heart rate, changes in body temperature, and amplitude of …
-
Design of a biomechanically synergistic exotendon suit
… tested using a COSMED K4b2 system and surface electromyogram (sEMG) data was collected using a Delsys Trigno system. Five male subjects participated in six trials, walking on a treadmill at 1.25 m/s, carrying a 20 kg load in a standard military rucksack. The six trials consisted of three …
-
Investigation of Sleep Neural Dynamics in Intracranial EEG Patients
… without accompanying electrooculogram (EOG) and electromyogram (EMG) electrodes available across labs for use in studies pertaining to neural dynamics during sleep.
-
Advances in materials strategies, circuit designs, and informatics for wearable, flexible and stretchable electronics with medical and robotic applications
… could provide a control-feedback loop through electromyogram and current stimulation; and a mechano-acoustic device that could capture vibrations from muscle, heart, and throat as diagnostic tools or human-machine interface. I developed a modularized epidermal radio-frequency energy transfer …
-
A SYSTEM lOR GAIT ANALYSIS
… and abnormal gait, and the relationships between electromyogram (E.M.G.) and the force, may be obtained. In order to study these phenomena, both kinematic data regarding the limbs, and E.M.G. data for the muscles in question must be gathered. This thesis presents a minicomputer based data …
-
Vestibular Evoked Myogenic Potentials : physiology, variability, and statistical characteristics
… been observed in stimulus locked averages of the electromyogram in a majority of human subjects, and are thought to originate in the otolith organs of the inner ear, which are balance organs responsible for sensing acceleration and orientation with respect to gravity. Otolith reflexes interact …
-
Deep Multimodal Physiological Learning of Cerebral Vasoregulation Dynamics on Stroke Patients Towards Precision Brain Medicine
… (ECG), Transcranial Doppler (TCD), Electromyogram (EMG), and Blood Pressure(BP) as stroke or non-stroke subjects. The effectiveness of these algorithms is demonstrated by a classification accuracy of 90% for the combination of ECG and EMG signals. Furthermore, this research explores …
-
Modules in the brainstem and spinal cord underlying motor behaviors
… to investigate this question was to analyze the electromyogram (EMG) data recorded from the leg muscles during frog motor behaviors before and after neuronal transection. In my two sets of experiments, EMGs were recorded before and after transection at the level of the caudal end of the third …
-
A statistical framework for the analysis of neural control of movement with aging and other clinical applications
… between electroencephalogram (EEG) and electromyogram (EMG) signals into senior age. In support of classifying aging and stroke populations, the methodology selected optimal features from the time, frequency, and information theory domains. Additionally, the use of cepstral analysis was …
-
Loss of muscle strength and power in older women and adaptation to resistance training
… frequency-domain characteristics of the surface electromyogram measuredo n the biceps-brachii muscle during constant-force sustained-isometric contractions. Older women responded to the same training programme with a lower increase in strength than the young women. This was accompanied by a …
-
Effects of Tool Weight on Fatigue and Performance During Short Cycle Overhead Work Operations
… ratings based on Borg's CR-10 RPE scale, electromyogram behavior (MdPF), and hand force performance measures. Experimental findings indicated that duty cycle (percentage of total task cycle time spent working) significantly affected task duration (p<0.0001), changes in maximum voluntary …
-
The role of fish physiology, behaviour, and water discharge on the attraction and passage of adult sockeye salmon (Oncorhynchus nerka) at the Seton River dam fishway, British Columbia
… and biopsied, before being implanted with electromyogram (EMG) transmitters and released near the downstream entrance of the fishway. Very few differences existed between successful and unsuccessful fish in body size, initial plasma physiology and energy state, and mean swim speed and …
-
Construction and assessment of a computer graphics-based model for wheelchair propulsion
… to strong relationships with the experimental electromyogram (EMG). Results from mean absolute error calculations revealed that, overall, the muscle activations determined by the model were within reasonable ranges of the experimental EMG. This was the first wheelchair propulsion study to …
-
Employing Intracranial EEG Data to Decipher Sleep Neural Dynamics
… recordings do not include electrooculogram or electromyogram recordings, which are normally needed for sleep scoring—especially for scoring rapid-eye movement (REM) sleep. We identified differences in alpha power between wake and REM sleep to develop a methodological way to reliably …
Page 1 of 2