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Electromyography and clinical neurophysiology

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  1. Linearity and reliability of the EMG amplitude versus dynamic torque relationships for the superficial quadriceps femoris muscles.

    Electromyography and clinical neurophysiology 50(2):97 (2010) PMID 20405785

    The purpose of the present investigation was to determine the linearity and reliability of the electromyographic (EMG) amplitude versus dynamic torque relationships for the vastus lateralis (VL), rectus femoris (RF), and vastus medialis (VM). Nine healthy men (mean +/- SD age = 25.3 +/- 4.7 year...
  2. Postural stability of elderly submmitted to multisensorial physical therapy intervention.

    Electromyography and clinical neurophysiology 50(2):113 (2010) PMID 20405787

    The present study investigated the influence of a regular Physical Therapy program with emphasis on proprioceptive stimulation, on the center pressure trajectory and muscle adjustments necessary to maintain balance on orthostatic position. After medical assessment, 29 subjects (63.06 +/- 2.84 ye...
  3. Electromyographic study of stomatognathic system muscles during chewing of different materials.

    Electromyography and clinical neurophysiology 50(2):121 (2010) PMID 20405788

    The aim of this study was to compare the behavior of the major chewing muscles (anterior temporalis, masseter and suprahyoid muscles) by using two commercial chewing gums (A and B) and two insipid materials (cotton ball and Parafilm M) through analysis of electromyographic signals. Ten female yo...
  4. Effect of load level on the emg spectra of longissimus thoracis muscle during isometric fatiguing contractions.

    Electromyography and clinical neurophysiology 50(2):75 (2010) PMID 20405783

    The present study analyzed the effect of different magnitudes of isometric contraction of longissimus thoracis muscle until fatigue by means power spectra analysis. Eight healthy male subjects volunteered for this study The electromyography signals were sampled at 1 kHz using surface electrodes ...
  5. The effects of parallel versus perpendicular electrode orientations on EMG amplitude and mean power frequency from the biceps brachii.

    Electromyography and clinical neurophysiology 50(2):87 (2010) PMID 20405784

    The purposes of this study were threefold: (1) to compare the isometric torque-related patterns of absolute and normalized electromyographic (EMG) amplitude and mean power frequency (MPF) responses for electrode orientations that were parallel and perpendicular to the muscle fibers; (2) to exami...
  6. The effect of manual therapy on masseter muscle pain and spasm.

    Electromyography and clinical neurophysiology 50(2):107 (2010) PMID 20405786

    Orofacial pain and pain in the muscles of mastication are frequent symptoms of temporomandibular disorder. The masseter is the closet masticatory muscle to the surface and has the function of raising and retracting the mandible. This muscle has considerable strength and is one of the main muscle...
  7. The proportion of patients with non-specific low back pain and neural compromise.

    Electromyography and clinical neurophysiology 50(2):67 (2010) PMID 20405782

    Lack of sensitivity in clinical evaluation and imaging techniques often result in the potential misdiagnosis of the nerve root compromise in patients with non specific low back pain (NSLBP). H-reflex is reliable, valid, and sensitive electrophysiological procedure in detecting neural impingement...
  8. Crohn disease and chronic inflammatory demyelinating polyneuropathy; a case report.

    Electromyography and clinical neurophysiology 50(3-4):181 (2010) PMID 20552951

    The neurological manifestations of Crohn's disease are rare, dominated by multiple mononeuropathies, peripheral neuropathies (PN) of axonal and demyelinating types, myopathies and the abnormalities of the white matter. In our study, we aimed to report electrophysiological follow-up of a patient ...
  9. Evaluation of cognitive function and P300 in patients undergoing cardiac surgery.

    Electromyography and clinical neurophysiology 50(6):259 (2010) PMID 21061771

    This study reports cognitive, P300 and MRI changes in the patients undergoing open heart surgery. 18 patients undergoing open heart surgery were included who were aged > or = 18 years of age and educated at least up to 5th standard. Patients with preoperative neuropsychiatric, and metabolic illn...
  10. Activation pattern masticatory muscles in dysphonics woman.

    Electromyography and clinical neurophysiology 50(6):289 (2010) PMID 21061775

    To evaluate the pattern of activation of the masticatory muscles in dysphonic women. Seventeen women was divided into two groups: experimental group with 10 dysphonic women (33.6 +/- 8.0) and control group with 7 healthy women (25 +/- 5,19). The Electromyography exam of the left (LM) and right (...