keyword
MENU ▼
Read by QxMD icon Read
search

Motor unit

keyword
https://www.readbyqxmd.com/read/29237929/contralateral-c7-nerve-root-transfer-for-function-recovery-in-adults-a-meta-analysis
#1
Wen-Jun Li, Li-Yue He, Shan-Lin Chen, Yan-Wei Lyu, Shu-Feng Wang, Yang Yong, Wen Tian, Guang-Lei Tian, Yu-Dong Gu
BACKGROUND: Root avulsion to all 5 roots of the brachial plexus is a common presentation and keeps a major reconstructive challenge. The contralateral C7 (CC7) nerve transfer has been used in treating brachial plexus avulsion injury (BPAI) since 1986. However, the effectiveness of the procedure remains a subject of controversy. The aim of this meta-analysis was to study surgical outcomes regarding motor and sensory recovery after CC7 nerve transfer. METHODS: Chinese or English (i...
December 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/29236844/functional-evaluation-of-pediatric-patients-after-discharge-from-the-intensive-care-unit-using-the-functional-status-scale
#2
Gabriela Alves Pereira, Camila Wohlgemuth Schaan, Renata Salatti Ferrari
OBJECTIVE: To evaluate the functional status of pediatric patients after discharge from the pediatric intensive care unit using the Functional Status Scale and to compare the time of invasive mechanical ventilation, length of stay in the pediatric intensive care unit, and Pediatric Index of Mortality 2 results among individuals with different degrees of functional impairment. METHODS: A cross-sectional study was conducted on patients who were discharged from a pediatric intensive care unit...
December 7, 2017: Revista Brasileira de Terapia Intensiva
https://www.readbyqxmd.com/read/29234861/neural-coding-of-sound-envelope-structure-in-songbirds
#3
Santiago Boari, Ana Amador
Songbirds are a well-established animal model to study the neural basis of learning, perception and production of complex vocalizations. In this system, telencephalic neurons in HVC present a state-dependent, highly selective response to auditory presentations of the bird's own song (BOS). This property provides an opportunity to study the neural code behind a complex motor behavior. In this work, we explore whether changes in the temporal structure of the sound envelope can drive changes in the neural responses of highly selective HVC units...
December 12, 2017: Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology
https://www.readbyqxmd.com/read/29225574/motor-unit-activity-during-fatiguing-isometric-muscle-contraction-in-hemispheric-stroke-survivors
#4
Lara McManus, Xiaogang Hu, William Z Rymer, Nina L Suresh, Madeleine M Lowery
Enhanced muscle weakness is commonly experienced following stroke and may be accompanied by increased susceptibility to fatigue. To examine the contributions of central and peripheral factors to isometric muscle fatigue in stroke survivors, this study investigates changes in motor unit (MU) mean firing rate, and action potential duration during, and directly following, a sustained submaximal fatiguing contraction at 30% maximum voluntary contraction (MVC). A series of short contractions of the first dorsal interosseous muscle were performed pre- and post-fatigue at 20% MVC, and again following a 10-min recovery period, by 12 chronic stroke survivors...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/29223824/correlating-motor-unit-morphology-with-bioelectrical-activity-a-simulation-study
#5
Ewa Zalewska, Irena Hausmanowa-Petrusewicz
OBJECTIVES: The aim was to determine motor unit morphology underpinning the various MUP waveforms using MUP analysis. METHOD: The simulation method is based on the decomposition of MUP into single fiber potentials. Number of fibers, fiber diameters and fiber to electrode distances were determined. The impact of each muscle fiber on the MUP waveform was determined and quantified by its percentage contribution. RESULTS: The origin of the four examined MUPs of distinct waveforms have been explained by showing the histograms of fiber diameters and their distance to the electrode...
November 16, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29222596/the-effects-of-local-forearm-muscle-cooling-on-motor-unit-properties
#6
Matthew M Mallette, Lara A Green, David A Gabriel, Stephen S Cheung
PURPOSE: Muscle cooling impairs maximal force. Using needle electromyography (EMG) to assess motor unit properties during muscle cooling, is limited and equivocal. Therefore, we aimed to determine the impact of local muscle cooling on motor unit firing properties using surface EMG decomposition. METHODS: Twenty participants (12 M, 8 F) completed maximal, evoked, and trapezoidal contractions during thermoneutral and cold muscle conditions. Forearm muscle temperature was manipulated using 10-min neutral (~ 32 °C) or 20-min cold (~ 3 °C) water baths...
December 8, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29220616/interventions-to-improve-or-maintain-lower-limb-function-among-ambulatory-adolescents-with-cerebral-palsy-a-cross-sectional-survey-of-current-practice-in-the-uk
#7
Gerasimos Taflampas, Cherry Kilbride, Wendy Levin, Grace Lavelle, Jennifer M Ryan
OBJECTIVES: To describe physiotherapy management to improve or maintain lower-limb function among adolescents with cerebral palsy, classified in Gross Motor Function Classification System levels I-III, in the United Kingdom (UK). METHODS: A list of interventions was identified using a nominal group technique and developed into a survey, which was distributed to approximately 2,100 pediatric physiotherapists in the UK through the Association of Pediatric Chartered Physiotherapists and a private physiotherapy clinic in London between April and June 2015...
December 8, 2017: Physical & Occupational Therapy in Pediatrics
https://www.readbyqxmd.com/read/29217500/peripheral-neuropathy-as-a-complication-of-diabetic-ketoacidosis-in-a-child-with-newly-diagnosed-diabetes-type-1-case-report
#8
Marta Baszyńska-Wilk, Marta Wysocka-Mincewicz, Anna Świercz, Jolanta Świderska, Magdalena Marszał, Mieczysław Szalecki
BACKGROUND: Neurological complications of diabetic ketoacidosis are considered to be very serious clinical problem. The most common complication is cerebral edema. However this group includes also less common syndromes such as ischemic or hemorrhagic stroke, cerebral venous and sinus thrombosis or very rare peripheral neuropathy. CASE REPORT: We present a case of 9-year old girl with new onset type 1 diabetes, diabetic ketoacidosis, cerebral edema, multifocal vasogenic brain lesions and lower limbs peripheral paresis...
December 8, 2017: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/29216288/adaptations-in-antagonist-co-activation-role-in-the-repeated-bout-effect
#9
Robert E Hight, Travis W Beck, Debra A Bemben, Christopher D Black
Eccentric exercise results in an adaptation which attenuates muscle damage from subsequent exercise-termed the "repeated-bout effect (RBE)." PURPOSE: Study examined antagonist co-activation and motor-unit recruitment strategy, assessed via dEMG, concomitant to the RBE. METHODS: Nine participants performed 5 sub-maximal isometric trapezoid (ramp-up, hold, ramp-down) contractions at force levels corresponding to 50% and 80% of maximal isometric strength (MVC). Surface EMG signals of the biceps brachii were decomposed into individual motor-unit action potential trains...
2017: PloS One
https://www.readbyqxmd.com/read/29214322/road-traffic-accidents-in-children-the-what-how-and-why
#10
Yue Yen Lee, Eric Fang, Yanyi Weng, Sashikumar Ganapathy
INTRODUCTION: Road traffic accidents (RTAs) in Singapore involving children were evaluated, with particular focus on the epidemiology, surrounding circumstances and outcomes of these accidents. Key factors associated with worse prognosis were identified. We proposed some measures that may be implemented to reduce the frequency and severity of such accidents. METHODS: This was a retrospective study of RTAs involving children aged 0-16 years who presented to the Children's Emergency at KK Women's and Children's Hospital, Singapore, from January 2011 to June 2014...
December 7, 2017: Singapore Medical Journal
https://www.readbyqxmd.com/read/29208351/detection-radius-of-emg-for-fasciculations-empiric-study-combining-ultrasonography-and-electromyography
#11
Martin Regensburger, Felix Tenner, Cornelia Möbius, Axel Schramm
OBJECTIVE: The aims of this study were to investigate the detection radius and sensitivity of EMG for fasciculations. METHODS: Muscle ultrasonography was performed simultaneously to EMG recordings in patients with fasciculations in the context of amyotrophic lateral sclerosis. Ultrasonography and EMG parameters were analyzed for selected fasciculations. RESULTS: A total of 381 fasciculations were detected by ultrasonography in 18 muscles of 10 patients...
November 21, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29204007/how-long-does-denervation-take-in-poliomyelitis-or-is-it-a-lifetime
#12
Mehmet Güney Şenol, Cengiz Kaplan, Fatih Ozdağ, Mehmet Saraçoğlu
Background and Objective: This study aims to determine the period of reinnervation in patients with poliomyelitis. This research was conducted to identify the appearance of denervation potentials in patients with poliomyelitis as indicators for reinnervation. Materials and Methods: A total of 246 male patients with poliomyelitis were assessed electrophysiologically between 1988 and 2007. The mean age was 22.8 (18-42). It has been an average of 19.9 ± 4.9 years since the beginning of complaints from the patients...
October 2017: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/29203503/multicentre-prospective-randomised-single-blind-controlled-study-protocol-of-the-effect-of-an-additional-parent-administered-sensorimotor-stimulation-on-neurological-development-of-preterm-infants-primebrain
#13
Karine Pelc, Irit Daniel, Bernard Wenderickx, Bernard Dan
INTRODUCTION: Preterm and very low birthweight infants are at increased risk for neurodevelopmental disorders, including cerebral palsy, sensory impairment and intellectual disability. Several early intervention approaches have been designed in the hope of optimising neurological development in this context. It seems important that the intervention takes into account parental mental health, focuses on parent-child interactions and lasts sufficiently long. This study aims to evaluate the effects of a stimulation programme administered by parents until 6 months post-term on motor and neurophysiological development of infants born preterm...
December 3, 2017: BMJ Open
https://www.readbyqxmd.com/read/29203201/combat-related-acetabular-fractures-outcomes-of-open-versus-closed-injuries
#14
Richard L Purcell, Michael A Donohue, Sameer K Saxena, Wade T Gordon, Louis L Lewandowski
INTRODUCTION: Since the onset of the Global War on Terror close to 50,000 United States service members have been injured in combat, many of these injuries would have previously been fatal. Among these injuries, open acetabular fractures are at an increased number due to the high percentage of penetrating injuries such as high velocity gunshot wounds and blast injuries. These injuries lead to a greater degree of contamination, and more severe associated injuries. There is a significantly smaller proportion of the classic blunt trauma mechanism typically seen in civilian trauma...
December 1, 2017: Injury
https://www.readbyqxmd.com/read/29195361/modular-injector-integrated-linear-apparatus-with-motion-profile-optimization-for-spatial-atomic-layer-deposition
#15
Xiaolei Wang, Yun Li, Jilong Lin, Bin Shan, Rong Chen
A spatial atomic layer deposition apparatus integrated with a modular injector and a linear motor has been designed. It consists of four parts: a precursor delivery manifold, a modular injector, a reaction zone, and a driving unit. An injector with multi-layer structured channels is designed to help improve precursor distribution homogeneity. During the back and forth movement of the substrate at high speed, the inertial impact caused by jerk and sudden changes of acceleration will degrade the film deposition quality...
November 2017: Review of Scientific Instruments
https://www.readbyqxmd.com/read/29191797/web-based-intervention-to-teach-developmentally-supportive-care-to-parents-of-preterm-infants-feasibility-and-acceptability-study
#16
Thuy Mai Luu, Li Feng Xie, Perrine Peckre, Sylvana Cote, Thierry Karsenti, Claire-Dominique Walker, Julie Gosselin
BACKGROUND: Preterm birth affects 8% to 11% of the population and conveys a significant risk of developmental delays. Intervention programs that support child development have been shown to have a positive impact on early motor and cognitive development and on parental well-being. However, these programs are often difficult to implement in a real-life setting due to lack of resources. Hence, our multidisciplinary team developed Mieux Agir au Quotidien (MAQ) to teach developmentally supportive care to parents of preterm infants with the goal of improving child development and parental outcomes...
November 30, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/29188450/ankle-muscle-activity-modulation-during-single-leg-stance-differs-between-children-young-adults-and-seniors
#17
Eduard Kurz, Oliver Faude, Ralf Roth, Lukas Zahner, Lars Donath
PURPOSE: Incomplete maturation and aging-induced declines of the neuromuscular system affect postural control both in children and older adults and lead to high fall rates. Age-specific comparisons of the modulation of ankle muscle activation and behavioral center of pressure (COP) indices during upright stance have been rarely conducted. The objective of the present study was to quantify aging effects on a neuromuscular level. Thus, surface electromyography (SEMG) modulation and co-activity of ankle muscles during single-leg standing was compared in healthy children, young adults and seniors...
November 29, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29185354/validation-and-psychometric-properties-of-the-german-version-of-the-delirium-motor-subtype-scale-dmss
#18
David Garcia Nuñez, Soenke Boettger, Rafael Meyer, André Richter, Maria Schubert, David Meagher, Josef Jenewein
OBJECTIVE: Delirium has been characterized into its subtypes-hypoactive, hyperactive, mixed, or no motor subtype-along with the use of the Delirium Motor Symptom Scale (DMSS). The German version of this scale (DMSS-G), however, has not yet been validated. METHOD: We determined internal consistency, reliability, and validity of the DMSS-G in the surgical intensive care unit, using DSM-IV-TR criteria and the Delirium Rating Scale-Revised-98. RESULTS: In total, 289 patients were included, and out of these, 122 were delirious...
November 1, 2017: Assessment
https://www.readbyqxmd.com/read/29183968/catch-bond-drives-stator-mechanosensitivity-in-the-bacterial-flagellar-motor
#19
Ashley L Nord, Emilie Gachon, Ruben Perez-Carrasco, Jasmine A Nirody, Alessandro Barducci, Richard M Berry, Francesco Pedaci
The bacterial flagellar motor (BFM) is the rotary motor that rotates each bacterial flagellum, powering the swimming and swarming of many motile bacteria. The torque is provided by stator units, ion motive force-powered ion channels known to assemble and disassemble dynamically in the BFM. This turnover is mechanosensitive, with the number of engaged units dependent on the viscous load experienced by the motor through the flagellum. However, the molecular mechanism driving BFM mechanosensitivity is unknown...
November 28, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29183967/using-deep-learning-and-google-street-view-to-estimate-the-demographic-makeup-of-neighborhoods-across-the-united-states
#20
Timnit Gebru, Jonathan Krause, Yilun Wang, Duyun Chen, Jia Deng, Erez Lieberman Aiden, Li Fei-Fei
The United States spends more than $250 million each year on the American Community Survey (ACS), a labor-intensive door-to-door study that measures statistics relating to race, gender, education, occupation, unemployment, and other demographic factors. Although a comprehensive source of data, the lag between demographic changes and their appearance in the ACS can exceed several years. As digital imagery becomes ubiquitous and machine vision techniques improve, automated data analysis may become an increasingly practical supplement to the ACS...
November 28, 2017: Proceedings of the National Academy of Sciences of the United States of America
keyword
keyword
10753
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"