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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 45 for “"Motor Unit"”.
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The facial musculature. Characterisation at a motor unit level.
Contains fulltext : 87824.pdf (Publisher’s version ) (Open Access)
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Reorganization and documentation of a motor unit decomposition program
Thesis: B.S., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 1982
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The Acquisition, Retention, and Transfer of Single Motor Unit Control
Made available in DSpace on 2014-12-12T01:12:11Z (GMT). No. of bitstreams: 1 7212366.pdf: 2515528 bytes, checksum: 35e4d243c164c074aea321664eeb7f68 (MD5) Previous issue date: 1971
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Functional Anatomy of the Anconeus: Muscle Architecture and Motor Unit Number Estimation
… than those reported in cadaveric studies. Motor unit number estimates (MUNE) can be determined electrophysiologically using decomposition-enhanced spike-triggered averaging. To provide the most representative MUNE, muscle activation should equal or exceed the upper limit of MU recruitment …
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Decreased Peak Muscle Power is Associated with Motor Unit Loss in the Lower Limb of Older Adults
This study investigated the relationship between motor unit (MU) properties and the strength and power of two lower limb muscles in healthy young and old adults. Twelve older adults (mean age, 77 ± 5 yrs) and twelve young adults (mean age, 24 ± 3 yrs) were studied. MU properties of the tibialis …
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Motor unit firing rate control of agonist skeletal muscle during voluntary isometric and shortening contractions with limb movement
… firing rate patterns. Single motor unit (MU) activity reflects the final efferent neural drive to the muscle, yet the underlying neural control of movement at the MU level is not well understood. Using intramuscular electromyography single MU recordings, relationships between …
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Electro-chemical stimulation of neuromuscular systems using ion-selective membranes : flexible device fabrication and motor unit recruitment order
… due to the reversal of recruitment order of motor units. Previous work showed that ion-selective membranes can be used to modulate Ca 2 ions in situ, decreasing the current threshold for nerve stimulation and eliciting a more graded muscle contraction response. This work developed …
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THE ROLE OF SKELETAL MUSCLE SYNTHESIZED BRAIN-DERIVED NEUROTROPHIC FACTOR (BDNF) ON THE HEALTH AND MAINTENANCE OF THE MURINE MOTOR UNIT
… affects innervating gastrocnemius associated motorneurons at the neuromuscular junction.</p>
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Perturbation Based Decomposition of sEMG Signals
<p>Surface electromyography records the motor unit action potential signals in the vicinity of the electrode to reveal information on muscle activation. Decomposition of sEMG signals for characterization of constituent motor unit action potentials in terms of amplitude and firing times is useful …
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Neuromuscular adaptations of either endurance or high-intensity interval training
… high-density surface electromyography (HDEMG) motor unit decomposition. This project consisted in two experiments, where healthy young men were recruited (aged between 18 to 35 years). In experiment one, the reliability of HDEMG motor unit variables (mean discharge rate, peak-to-peak amplitude, …
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The Neuromuscular and Mechanical Control of the Knee Joint in Patellofemoral Pain Sufferers
Results Grouped Tape Response: The mean motor unit firing exhibited an increase in the VM firing rate and a decrease in the VL firing rate within the tape condition, across both subject groups, suggesting a modification in the load bias across the Vasti muscles. The common drive, a physiological …
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Model Based Decomposition of MUAPS Into Their Constituent SFEAPS
The motor unit action potential (MUAP) represents the spatial and temporal summation of single fibre extracellular action potentials (SFEAPS) generated from the same motor unit. MUAP morphology is affected by structural reorganisation of the motor unit that takes place due to disorders affecting …
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Evaluation of Global Muscle Innervation Using Multi-Channel Surface Electromyography
… of neuromuscular function at the muscle and motor unit level. Specifically, sEMG has been used to assess the location of innervation zones (IZs) and the quantity of functioning innervation of targeted muscles. This knowledge associated with muscle innervation is critical to the clinical …
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Acute effects of self-myofascial release and static stretching on shoulder range of motion and performance in overhead athletes with glenohumeral internal rotation deficit
… external rotation isometric strength, motor unit recruitment, and throwing velocity) in male softball players with glenohumeral internal rotation deficit (GIRD).</p> <p>Methods: The sample consisted of 12 male amateur softball players (age: 36.92 ±11.17 years; height: 177.42 ±6.30cm; …
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Muscle Strength, Motor Units, and Aging
… The interrelationship between muscle strength, motor units, and aging is not well known. Methods: This investigation utilized the motor unit number index technique (MUNIX) to elucidate this relationship. Beforehand, an experiment was conducted to assess the absolute and relative reliability of …
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Physiological studies investigating neurological adaptations to resistance training
… parameters (excitability, inhibition, and motor unit synchronisation) influenced the development of strength.
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Diagnostic test and analytical methods for resolving fan/motor vibration problems in air-conditioning units
… (FEA) was performed on the fan blade and the fan-motor unit. The project compared the results obtained from the FEA and experimental modal analysis of the fan assembly. A very good correlation between FEA and the experimental modal analysis was found.
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Control of human motoneurones during voluntary contraction and fatigue
All motor behaviours are expressed via the activation of alpha motoneurones, the final common path of the central nervous system. The corticospinal tract conveys neural information from the motor cortex to motoneurones. This thesis focuses on the corticospinal control of human motoneurones during …
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