keyword
MENU ▼
Read by QxMD icon Read
search

EMG test

keyword
https://www.readbyqxmd.com/read/29666572/characterization-of-peripheral-activity-states-and-cortical-local-field-potentials-of-mice-in-an-elevated-plus-maze-test
#1
Toya Okonogi, Ryota Nakayama, Takuya Sasaki, Yuji Ikegaya
Elevated plus maze (EPM) tests have been used to assess animal anxiety levels. Little information is known regarding how physiological activity patterns of the brain-body system are altered during EPM tests. Herein, we monitored cortical local field potentials (LFPs), electrocardiograms (ECGs), electromyograms (EMGs), and respiratory signals in individual mice that were repeatedly exposed to EPM tests. On average, mouse heart rates were higher in open arms. In closed arms, the mice occasionally showed decreased heart and respiratory rates lasting for several seconds or minutes, characterized as low-peripheral activity states of peripheral signals...
2018: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/29660632/female-pfp-patients-present-alterations-in-eccentric-muscle-activity-but-not-the-temporal-order-of-activation-of-the-vastus-lateralis-muscle-during-the-single-leg-triple-hop-test
#2
Marcelo Martins Kalytczak, Paulo Roberto Garcia Lucareli, Amir Curcio Dos Reis, André Serra Bley, Daniela Aparecida Biasotto-Gonzalez, João Carlos Ferrari Correa, Fabiano Politti
This study aimed to compare the concentric and eccentric activity and the temporal order of peak activity of the hip and knee muscles between women with patellofemoral pain (PFP) and healthy women during the single leg triple hop test (SLTHT). Electromyographic (EMG) and Kinematic data were collected from 14 healthy women (CG) and 14 women diagnosed with PFP (PFG) during a single session of the single leg triple hop test. Integral surface electromyography (iEMG) data of the hip and knee muscles in eccentric and concentric phases and the length of time that each muscle needed to reach the maximal peak of muscle activity were calculated...
April 7, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29659401/effects-of-different-footwear-properties-and-surface-instability-on-neuromuscular-activity-and-kinematics-during-jumping
#3
Melanie Lesinski, Olaf Prieske, Ron Borde, Rainer Beurskens, Urs Granacher
Lesinski, M, Prieske, O, Borde, R, Beurskens, R, and Granacher, U. Effects of different footwear properties and surface instability on neuromuscular activity and kinematics during jumping. J Strength Cond Res XX(X): 000-000, 2018-The purpose of this study was to examine sex-specific effects of different footwear properties vs. barefoot condition during the performance of drop jumps (DJs) on stable and unstable surfaces on measures of jump performance, electromyographic (EMG) activity, and knee joint kinematics...
April 13, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29656927/pontocerebellar-hypoplasia-type-1-for-the-neuropediatrician-genotype-phenotype-correlations-and-diagnostic-guidelines-based-on-new-cases-and-overview-of-the-literature
#4
I Ivanov, D Atkinson, I Litvinenko, L Angelova, S Andonova, H Mumdjiev, I Pacheva, M Panova, R Yordanova, V Belovejdov, A Petrova, M Bosheva, T Shmilev, A Savov, A Jordanova
Pontocerebellar hypoplasia type 1 (PCH1) is a major cause of non-5q spinal muscular atrophy (SMA). We screened 128 SMN1-negative SMA patients from Bulgaria for a frequent mutation -p.G31A in EXOSC3, and performed a literature review of all genetically verified PCH1 cases. Homozygous p.G31A/EXOSC3 mutation was identified in 14 Roma patients, representing three fourths of all our SMN1-negative Roma SMA cases. The phenotype of the p.G31A/EXOSC3 homozygotes was compared to the clinical presentation of all reported to date genetically verified PCH1 cases...
April 3, 2018: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/29656221/patellar-malalignment-treated-with-modified-knee-extension-training-an-electromyography-study
#5
Chi-Chuan Wu, Mei-Chuan Chen, Po-Yuan Tseng, Chi-Heng Lu, Chiu-Ching Tuan
BACKGROUND: Patellar malalignment (PM) in most patients is ascribed to an imbalance of peripatellar soft tissue tension. RESEARCH QUESTION: Conservative treatment of PM initially with enforced training of the vastus medialis obliquus (VMO) has been widely applied. Non-operative techniques for treatment of PM require continuing development. METHODS: Thirty healthy young adults participated in the study. Two surface electromyography (EMG) electrodes were placed on the skin of the dominant lower thigh in each subject: one on the center of the muscle belly of the VMO and the other on the symmetric location of the vastus lateralis (VL)...
April 6, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29652835/fabrication-of-flexible-microneedle-array-electrodes-for-wearable-bio-signal-recording
#6
Lei Ren, Shujia Xu, Jie Gao, Zi Lin, Zhipeng Chen, Bin Liu, Liang Liang, Lelun Jiang
Laser-direct writing (LDW) and magneto-rheological drawing lithography (MRDL) have been proposed for the fabrication of a flexible microneedle array electrode (MAE) for wearable bio-signal monitoring. Conductive patterns were directly written onto the flexible polyethylene terephthalate (PET) substrate by LDW. The microneedle array was rapidly drawn and formed from the droplets of curable magnetorheological fluid with the assistance of an external magnetic field by MRDL. A flexible MAE can maintain a stable contact interface with curved human skin due to the flexibility of the PET substrate...
April 13, 2018: Sensors
https://www.readbyqxmd.com/read/29649711/the-interaction-of-bdnf-val66met-ptsd-and-child-abuse-on-psychophysiological-reactivity-and-hpa-axis-function-in-a-sample-of-gulf-war-veterans
#7
Dmitri A Young, Thomas C Neylan, Aoife O'Donovan, Thomas Metzler, Anne Richards, Jessica A Ross, Sabra S Inslicht
INTRODUCTION: While the BDNF Val66Met polymorphism has been linked to various psychological disorders, limited focus has been on its relationship to posttraumatic stress disorder (PTSD) and early traumas such as child abuse. Therefore, we assessed whether Val66Met was associated with fear potentiated psychophysiological response and HPA axis dysfunction and whether PTSD status or child abuse history moderated these outcomes in a sample of Veterans. METHODS: 226 and 173 participants engaged in a fear potentiated acoustic startle paradigm and a dexamethasone suppression test (DST) respectively...
April 3, 2018: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29644392/effect-of-a-rest-pause-vs-traditional-squat-on-electromyography-and-lifting-volume-in-trained-women
#8
John A Korak, Max R Paquette, Dana K Fuller, Jennifer L Caputo, John M Coons
PURPOSE: Rest-pause (4 s unloaded rest between repetitions) single session training effects on lifting volume, and muscle activity via electromyography (EMG) are currently vague in the literature and can benefit strength and conditioning professionals for resistance training program design. This study compared differences in volume lifted and muscle activity between a rest-pause vs. traditional protocol. METHODS: Trained females (N = 13) completed both a rest-pause and traditional squat protocol consisting of four sets to movement failure at 80% pretest 1 repetition maximum load with 2-min rest between sets...
April 11, 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29643580/effect-of-various-wheelchair-handle-grip-directions-on-muscle-activities-of-upper-body-of-assistant-during-movement-on-ascending-and-descending-ramps
#9
Sang-Yeol Lee, Su-Kyoung Lee, Su-Hong Ahn
[Purpose] This study aims to determine the effects of various wheelchair handle grip directions on the muscle activities of the upper body of an assistant during movement on ascending and descending ramps. [Subjects and Methods] The study subjects were 17 young and healthy participants whose mean age, height, and weight was 23.0 ± 2.7 years, 175.5 ± 4.7 cm, and 70.0 ± 14.2 kg, respectively; all subjects voluntarily consented to participate. Three grip directions were tested: general grip, medial grip, and neutral grip...
December 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29623876/averaging-in-time-frequency-domain-reveals-the-temporal-and-spatial-extent-of-seizures-recorded-by-scalp-eeg
#10
Rafeed Alkawadri, Nicolas Gaspard
To demonstrate the importance of averaging in time-frequency space and the added localizing value in time and space in a case of cortical myoclonus. One hundred myoclonic jerks were averaged in time series and in spectral domain. For the latter, we chose 100 (10-second) segments from interictal background and used the unpaired t-test for the jerk-related and control spectral data to obtain the t value and corresponding p value at each pixel. We corrected for multiple comparisons using false discovery rate procedure...
April 6, 2018: Epileptic Disorders: International Epilepsy Journal with Videotape
https://www.readbyqxmd.com/read/29619793/effect-of-post-warm-up-resting-interval-on-static-and-dynamic-balance-and-maximal-muscle-strength-followed-by-the-fifa-11-and-dynamic-warm-up-exercises
#11
Yung-Sheng Chen, Wai-Lin Lai, Chein-Wen Hou, Che-Hsiu Chen, Yi-Wen Chiu, Pedro Bezzera
BACKGROUND: It has been reported that implementation of the FIFA11+ can immediately increase exercise performance. However, the elapsed time of post-warm up (WU) effect of the FIFA 11+ is unclear. METHODS: Twenty-two male university football players were randomly assigned into the FIFA 11+ (n =10) or control group (conventional dynamic WU exercise, n = 11). The participants performed static, drop jump, and maximal voluntary muscle contraction (MVC) tests before and after the WU protocol in four different occasions with 0, 10, 20 or 30 min resting interval...
April 4, 2018: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29616985/recording-characteristics-of-impedance-electromyography-needle-electrodes
#12
Hyeuknam Kwon, John F Di Cristina, Seward B Rutkove, Benjamin Sanchez
OBJECTIVE: Needle EMG remains the standard clinical test for neuromuscular disease (NMD) assessment, but it only characterizes myofiber membrane depolarization. On the other hand, electrical impedance provides non-electrically active structural and compositional data of tissues. Here, we designed a prototype of needle electrode integrating impedance and EMG measurement capabilities, the so-called I-EMG needle electrode. APPROACH: We use finite element method models to study the impedance recording characteristics of I-EMG needle electrodes...
April 4, 2018: Physiological Measurement
https://www.readbyqxmd.com/read/29616887/upper-limb-muscle-activation-during-sports-video-gaming-of-persons-with-spinal-cord-injury
#13
Jeffrey P Jaramillo, M Elise Johanson, B Jenny Kiratli
OBJECTIVE: Video gaming as a therapeutic tool has largely been studied within the stroke population with some benefits reported in upper limb motor performance, balance, coordination, and cardiovascular status. To date, muscle activation of upper limb muscles in persons with spinal cord injuries (SCI) has not been studied during video game play. In this paper, we provide descriptive and comparative data for muscle activation and strength during gaming for players with tetraplegia and paraplegia, as well as, compare these results with data from traditional arm exercises (ie, biceps curl and shoulder press) with light weights which are commonly prescribed for a home program...
April 4, 2018: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/29606959/permutation-entropy-and-signal-energy-increase-the-accuracy-of-neuropathic-change-detection-in-needle-emg
#14
O Dostál, O Vysata, L Pazdera, A Procházka, J Kopal, J Kuchyňka, M Vališ
Background and Objective. Needle electromyography can be used to detect the number of changes and morphological changes in motor unit potentials of patients with axonal neuropathy. General mathematical methods of pattern recognition and signal analysis were applied to recognize neuropathic changes. This study validates the possibility of extending and refining turns-amplitude analysis using permutation entropy and signal energy. Methods. In this study, we examined needle electromyography in 40 neuropathic individuals and 40 controls...
2018: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/29605618/progressive-myoclonus-epilepsy-without-renal-failure-in-a-chinese-family-with-a-novel-mutation-in-scarb2-gene-and-literature-review
#15
Wo-Tu Tian, Xiao-Li Liu, Yang-Qi Xu, Xiao-Jun Huang, Hai-Yan Zhou, Ying Wang, Hui-Dong Tang, Sheng-Di Chen, Xing-Hua Luan, Li Cao
PURPOSE: To describe the clinical and genetic features of a Chinese progressive myoclonus epilepsy (PME) patient related with SCARB2 mutation without renal impairment and review 27 SCARB2-related PME patients from 11 countries. METHODS: The patient was a 27-year-old man with progressive action myoclonus, ataxia, epilepsy, dysarthria and absence of cognitive deterioration. Renal functional test was normal. Electroencephalography (EEG) showed progressively slowed background activity and sporadic generalized spike-and-wave discharges...
March 14, 2018: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/29597061/individuality-of-masticatory-performance-and-of-masticatory-muscle-temporal-parameters
#16
Claire D Tewksbury, Kathryn X Callaghan, Brent A Fulks, Geoffrey E Gerstner
OBJECTIVE: Mammalian mastication serves to improve intra-oral food reduction. Insufficient food reduction creates potential swallowing problems, whereas over-reduction may accelerate tooth wear and increase feeding time. Either extreme has consequences. The study's objectives were: (1) to study the relationship between food reduction, number of chews in a sequence, and chewing rate, (2) to study how controlling the number of chews and chewing rate variability affects food reduction, and (3) to assess how dentoskeletal morphological and electromyographical (EMG) characteristics impact food reduction...
March 20, 2018: Archives of Oral Biology
https://www.readbyqxmd.com/read/29596981/the-vestibulomyogenic-balance-response-is-elevated-following-high-intensity-lengthening-contractions-of-the-lower-limb
#17
Emily I McIntosh, Geoffrey A Power, Brian H Dalton
The purpose was to investigate whether induced muscle weakness of the plantar and dorsiflexors through high-intensity lengthening contractions increases the vestibulomyogenic balance response. Nine males (∼25 years) participated in three experimental testing days to evaluate the vestibular control of standing balance and neuromuscular function of the plantar and dorsiflexors pre- and post (30 min, and 1 and 7 days) high-intensity lengthening plantar and dorsiflexions. To evaluate the vestibular-evoked balance response, participants stood quietly on a force plate while exposed to continuous, random electrical vestibular stimulation (EVS) for two 90-s trials...
March 26, 2018: Neuroscience Letters
https://www.readbyqxmd.com/read/29584507/trunk-muscle-recruitment-patterns-in-simulated-precrash-events
#18
Jóna Marín Ólafsdóttir, Jason B Fice, Daniel W H Mang, Karin Brolin, Johan Davidsson, Jean-Sébastien Blouin, Gunter P Siegmund
OBJECTIVES: To quantify trunk muscle activation levels during whole body accelerations that simulate precrash events in multiple directions and to identify recruitment patterns for the development of active human body models. METHODS: Four subjects (1 female, 3 males) were accelerated at 0.55 g (net Δv = 4.0 m/s) in 8 directions while seated on a sled-mounted car seat to simulate a precrash pulse. Electromyographic (EMG) activity in 4 trunk muscles was measured using wire electrodes inserted into the left rectus abdominis, internal oblique, iliocostalis, and multifidus muscles at the L2-L3 level...
February 28, 2018: Traffic Injury Prevention
https://www.readbyqxmd.com/read/29582150/evaluation-of-artifact-corrected-electroencephalographic-eeg-training-a-pilot-study
#19
Jeffry P La Marca, Daniel Cruz, Jennifer Fandino, Fabiana R Cacciaguerra, Joseph J Fresco, Austin T Guerra
This double-blind study examined the effect of electromyographical (EMG) artifacts, which contaminate electroencephalographical (EEG) signals, by comparing artifact-corrected (AC) and non-artifact-corrected (NAC) neurofeedback (NF) training procedures. 14 unmedicated college students were randomly assigned to two groups: AC (n = 7) or NAC (n = 7). Both groups received 12 sessions of NF and were trained using identical NF treatment protocols to reduce their theta/beta power ratios (TBPR). Outcomes on a continuous performance test revealed that the AC group had statistically significant increases across measures of auditory and visual attention...
March 26, 2018: Journal of Neural Transmission
https://www.readbyqxmd.com/read/29575639/recurrent-inhibition-is-higher-in-eccentric-compared-to-isometric-and-concentric-maximal-voluntary-contractions
#20
Simon Barrué-Belou, Philippe Marque, Julien Duclay
AIM: This study was designed to investigate the influence of muscle contraction type on spinal recurrent inhibition during maximal voluntary contractions (MVC) of the plantar flexor muscles. METHODS: To that purpose, the paired Hoffmann-reflex (H-reflex) technique permitted to assess changes in recurrent pathway by comparing the modulations of test, reference and conditioning H-reflexes (H', Href and H1 respectively) in the soleus muscle during isometric, concentric and eccentric MVC...
March 25, 2018: Acta Physiologica
keyword
keyword
84291
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"