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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. Sympathetic skin response (SSR) in Crohn disease: a pilot study.

    Electromyography and clinical neurophysiology 50(1):29 (2010) PMID 20349555

    Peripheral neuropathy is one of the most frequently reported neurological extra-intestinal manifestations of the Crohn disease. Former studies have showed sympathetic neuropathy as early manifestation of CD by physical tests. The aim of this study is to examine sympathetic neuropathy in CD by us...
  9. Neurophysiological comparison between the Sit-to-Stand test with the 6-Minute Walk test in individuals with COPD.

    Electromyography and clinical neurophysiology 50(1):47 (2010) PMID 20349558

    The Sit-to-Stand test (SST) is accepted and utilized during functional assessments of COPD patients, along with the 6-Minute Walk test (6MWT). Since there is a lack of evidence in literature regarding the neurophysiological effectiveness of SST compared to 6MWT, the present study is justified wi...
  10. Visual evoked potential abnormalities in migraine patients.

    Electromyography and clinical neurophysiology 50(6):303 (2010) PMID 21061777

    Visual processing in migraine has been targeted indicating that the visual pathways are involved in the migraine pathophysiology. We aimed to assess the nature of visual evoked potential (VEP) changes in migraine patients and to evaluate the role of VEP in the diagnosis of migraine. We examined ...