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. Influence of trunk muscle co-contraction on spinal curvature during sitting cross-legged.

    Electromyography and clinical neurophysiology 50(3-4):187 (2010) PMID 20552952

    In Asia, many activities of daily living (ADL) are performed while sitting cross-legged on the floor. This sitting posture rotates the pelvis in a more dorsal direction and lumbar lordosis is more flattened than while sitting on a chair. Sitting cross-legged induces a greater load on the interve...
  11. Which parameter is more reliable in a cold hand, NCV or latency.

    Electromyography and clinical neurophysiology 50(5):235 (2010) PMID 20718334

    Temperature affects distal sensory & motor latencies & nerve conduction velocity but not necessarily at the same degree. Purpose of this study is to see which one is affected less and thus could be more reliable in cold conditions. A total of 32 healthy individuals with age range of 18-28 years ...
  12. Electromyographic validation of the muscles deltoid (anterior portion) and pectoralis major (clavicular portion) in military press exercises with open grip.

    Electromyography and clinical neurophysiology 50(5):203 (2010) PMID 20718330

    It was analized the deltoid muscle anterior portion and the pectoralis major clavicular portion in 24 male volunteers using a two-channel electromyograph TECA TE 4, and Hewllet Packard surface electrodes, in 4 modalities of military press exercises with open grip. The results showed high inactiv...
  13. 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 ...
  14. Analysis of electromyographic muscles activity of gait in healthy subjects with and without AFO developed for patients with hemiparesis.

    Electromyography and clinical neurophysiology 50(6):295 (2010) PMID 21061776

    The aim of the present study was to analyze the electromyographic (EMG) signals of the rectus femoris (RF), vastus lateralis (VL), tibialis anterior (TA) and soleus (SO) muscles in young healthy adults with and without the use of an experimental ankle-foot-orthosis (AFO) designed for patients wi...
  15. Acute effects of passive stretching and vibration on the electromechanical delay and musculotendinous stiffness of the plantar flexors.

    Electromyography and clinical neurophysiology 50(6):277 (2010) PMID 21061774

    The purpose of the present study was to examine the acute effects of passives stretching versus prolonged vibration on the active and passive properties of voluntary and evoked muscle actions of the plantar flexors. Eleven healthy men performed the isometric maximal voluntary contractions (MVCs)...
  16. Comparison of the sensitivities of plantar nerve conduction techniques for early detection of diabetic sensory polyneuropathy.

    Electromyography and clinical neurophysiology 50(6):269 (2010) PMID 21061773

    The purpose of this study was to determine the most sensitive diagnostic test for nerve conduction study (NCS) of the foot for early detection of diabetic polyneuropathy. We compared the sensitivities for diagnosis of sensory polyneuropathy of four different nerve conduction techniques in the sa...
  17. Leg muscles activities during hyperventilation following a cycling exercise.

    Electromyography and clinical neurophysiology 50(1):39 (2010) PMID 20349557

    The goal of this study was to establish how increased ventilation modifies postural stability, as characterized by body sway and leg muscle activities. Twelve healthy subjects had to perform six 30-second postural tests: one pre-exercise test while breathing gently and then one test every minute...
  18. Hearing evaluation of school children in Kuwait.

    Electromyography and clinical neurophysiology 50(6):309 (2010) PMID 21061778

    Hearing level in some children may be abnormal due to conductive or sensorineural causes. In Kuwait, the hearing screening test is not conducted for newborns at public hospitals. We evaluated the hearing level of 159 Kuwaiti school children (age 6-12 years) at the Audiology Clinic of Ahmadi hosp...
  19. Cure of urinary bladder functions in severe (95%) motoric complete cervical spinal cord injury in human.

    Electromyography and clinical neurophysiology 50(3-4):155 (2010) PMID 20552950

    Severe cervical Spinal Cord Injury (SCI) leads to quadriplegia, and autonomic dysfunctions. Bladder/bowel continence, cardiovascular performance, and breathing are impaired besides movements. Even though there are no fully restorative treatments for SCI, I report about a patient, who suffered a ...
  20. Influence of fingertip contact with a wall on postural sway and electromyographyic activity of the soleus muscle.

    Electromyography and clinical neurophysiology 50(5):229 (2010) PMID 20718333

    Standing and walking balance decreases in many kinds of neuromuscular, musculoskeletal and sensory disorders, and in elderly people because of age-related physiologic diminution. Recent studies have shown that contact cues from a cane or a fingertip provide information that leads to reduced post...