the efficient estimation of motor unit excitability parameters in needle electromyography experiments.
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The Efficient Estimation of Motor Unit Excitability Parameters in Needle Electromyography Experiments
Moving our body is the outcome of our muscles’ contraction. Muscles themselves are composed of groups of muscle fibres each controlled by a single motor neuron. The motor neuron and its associated muscle fibres form the elementary functional unit of the neuromuscular system, the so-called motor unit (MU). By activating more or less MUs, the amount of generated muscle force can be increased or d...
متن کاملMotor unit potentials of the erector spinae muscle by concentric needle electromyography
INTRODUCTION The needle electromyography (EMG) serves to supply additional information in patients with suspected neuromuscular disorders. We aimed to provide motor unit potential (MUP) data by concentric needle EMG in the erector spinae (ES) in comparison with biceps brachii (BB) and lateral vastus (LV). METHODS Electromyography MUP data (n) were obtained in ES (517), BB (539), and LV (627) ...
متن کاملNeedle electromyography.
Physiologic assessment of diseases of the motor unit from the anterior horn cells to the muscles relies on a combination of needle electromyography (EMG) and nerve conduction studies (NCS). Both require a unique combination of knowledge of peripheral nervous system anatomy, physiology, pathophysiology, diseases, techniques, and electricity is necessary. Successful, high-quality, reproducible EM...
متن کاملMotor Unit Number Estimation in Normal and Parkinsonism Model of Medial Gastrocnemius Muscle in Rats
Motor units (MUs) reflect the function of the central nervous motor system. Thus, the estimated MU number is a good option to investigate the functional movement disorder in the Parkinson’s disease (PD). The purpose of this study was to compare the estimated MUs number in the medial gastrocnemius (MG) muscle of the normal rats and those with the Parkinsonism. The MG muscle of two age-matche...
متن کاملCan Wavelet Denoising Improve Motor Unit Potential Template Estimation?
Background: Electromyographic (EMG) signals obtained from a contracted muscle contain valuable information on its activity and health status. Much of this information lies in motor unit potentials (MUPs) of its motor units (MUs), collected during the muscle contraction. Hence, accurate estimation of a MUP template for each MU is crucial. Objective: To investigate the possibility of improv...
متن کاملSteps of the Needle Electromyography Examination
Insertional activity is examined by moving the needle through the muscle briefly and observing the crispness, size, and duration of the electrical potentials produced. These potentials are mechanically evoked injury potentials due to the advancement of the needle. After a brief, small movement of the needle, insertional activity will usually persist no more than 300 ms. However, this duration i...
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عنوان ژورنال:
iranian journal of public healthجلد ۴۳، شماره ۲، صفحات ۲۶۱-۲
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