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Neuromuscular control

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https://www.readbyqxmd.com/read/29340001/neuromuscular-control-during-the-bench-press-movement-in-an-elite-disabled-and-able-bodied-athlete
#1
Artur Gołaś, Anna Zwierzchowska, Adam Maszczyk, Michał Wilk, Petr Stastny, Adam Zając
The disabled population varies significantly in regard to physical fitness, what is conditioned by the damage to the locomotor system. Recently there has been an increased emphasis on the role of competitive sport in enhancing health and the quality of life of individuals with disability. One of the sport disciplines of Paralympics is the flat bench press. The bench press is one of the most popular resistance exercises used for the upper body in healthy individuals. It is used not only by powerlifters, but also by athletes in most strength-speed oriented sport disciplines...
December 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29338895/feasibility-of-total-intravenous-anesthesia-by-cardiologists-with-the-support-of-anesthesiologists-during-catheter-ablation-of-atrial-fibrillation
#2
Takanori Yamaguchi, Yusuke Shimakawa, Shinji Mitsumizo, Akira Fukui, Yuki Kawano, Toyokazu Otsubo, Yuya Takahashi, Kei Hirota, Takeshi Tsuchiya, Kenichi Eshima
BACKGROUND: The optimal methodology for sedation and anesthesia during atrial fibrillation (AF) ablation has not been well established. We assessed the feasibility of total intravenous anesthesia (TIVA) by cardiologists with support from anesthesiologists during AF ablation and quality of pulmonary vein isolation (PVI) and single procedure success rate at 12 months. METHODS: TIVA was performed by cardiologists using IV propofol and fentanyl under controlled ventilation via i-gel™ without neuromuscular blocking drugs in 160 consecutive patients (80 nonparoxysmal) with no anticipated difficult airway or other severe diseases...
January 12, 2018: Journal of Cardiology
https://www.readbyqxmd.com/read/29335666/a-modified-dynamic-surface-controller-for-delayed-neuromuscular-electrical-stimulation
#3
Naji Alibeji, Nicholas Kirsch, Brad E Dicianno, Nitin Sharma
A widely accepted model of muscle force generation during neuromuscular electrical stimulation (NMES) is a second-order nonlinear musculoskeletal dynamics cascaded to a delayed first-order muscle activation dynamics. However, most nonlinear NMES control methods have either neglected the muscle activation dynamics or used an ad hoc strategies to tackle the muscle activation dynamics, which may not guarantee control stability. We hypothesized that a nonlinear control design that includes muscle activation dynamics can improve the control performance...
August 2017: IEEE/ASME Transactions on Mechatronics
https://www.readbyqxmd.com/read/29334308/neuromuscular-degenerative-effects-of-ankaferd-blood-stopper%C3%A2-in-mouse-sciatic-nerve-model
#4
Ramazan Üstün, Elif Kaval Oğuz, Çağrı Delilbaşı, Ayşe Şeker, Filiz Taşpınar, Mehmet Reşit Öncü, Ahmet Regaip Oğuz
Purpose Ankaferd Blood Stopper® (ABS), a licenced medicinal herbal extract, is commonly used as an effective topical haemostatic agent. This study is designed to investigate whether topical ABS application may cause peripheral nerve degeneration and neuromuscular dysfunction in a mouse sciatic nerve model. Methods Twenty mice were randomly divided into two groups; an ABS treated experimental group and a saline-treated control group. Left sciatic nerves were treated with 0.3 ml of ABS in the experimental group and 0...
January 15, 2018: Somatosensory & Motor Research
https://www.readbyqxmd.com/read/29333621/characterization-of-mouse-neuro-urological-dynamics-in-a-novel-decerebrate-arterially-perfused-mouse-dapm-preparation
#5
Hiroki Ito, Marcus J Drake, Christopher H Fry, Anthony J Kanai, Anthony E Pickering
AIM: To develop the decerebrate arterially perfused mouse (DAPM) preparation, a novel voiding model of the lower urinary tract (LUT) that enables in vitro-like access with in vivo-like neural connectivity. METHODS: Adult male mice were decerebrated and arterially perfused with a carbogenated, Ringer's solution to establish the DAPM. To allow distinction between central and peripheral actions of interventions, experiments were conducted in both the DAPM and in a "pithed" DAPM which has no brainstem or spinal cord control...
January 15, 2018: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/29332470/a-school-based-neuromuscular-training-program-and-sport-related-injury-incidence-a-prospective-randomized-controlled-clinical-trial
#6
Kim D Barber Foss, Staci Thomas, Jane C Khoury, Gregory D Myer, Timothy E Hewett
CONTEXT:   An estimated 40 million school-aged children (age range = 5-18 years) participate annually in sports in the United States, generating approximately 4 million sport-related injuries and requiring 2.6 million emergency department visits at a cost of nearly $2 billion. OBJECTIVE:   To determine the effects of a school-based neuromuscular training (NMT) program on sport-related injury incidence across 3 sports at the high school and middle school levels, focusing particularly on knee and ankle injuries...
January 13, 2018: Journal of Athletic Training
https://www.readbyqxmd.com/read/29329889/exploring-individual-adaptations-to-an-anterior-cruciate-ligament-injury-prevention-programme
#7
Aaron S Fox, Jason Bonacci, Scott G McLean, Natalie Saunders
BACKGROUND: Individual responses to anterior cruciate ligament injury prevention programmes (ACL IPPs) have received little attention. This study examined the effects of an ACL IPP on neuromuscular control and lower limb biomechanics during landing at the group and individual levels. METHODS: Sixteen female athletes were randomly allocated to training (n=8) or control (n=8) groups. Electromyography, and three-dimensional kinematic and kinetic data were collected during landing at two testing sessions...
January 9, 2018: Knee
https://www.readbyqxmd.com/read/29329332/co-delivery-of-a-laminin-111-supplemented-hyaluronic-acid-based-hydrogel-with-minced-muscle-graft-in-the-treatment-of-volumetric-muscle-loss-injury
#8
Stephen M Goldman, Beth E P Henderson, Thomas J Walters, Benjamin T Corona
Minced muscle autografting mediates de novo myofiber regeneration and promotes partial recovery of neuromuscular strength after volumetric muscle loss injury (VML). A major limitation of this approach is the availability of sufficient donor tissue for the treatment of relatively large VMLs without inducing donor site morbidity. This study evaluated a laminin-111 supplemented hyaluronic acid based hydrogel (HA+LMN) as a putative myoconductive scaffolding to be co-delivered with minced muscle grafts. In a rat tibialis anterior muscle VML model, delivery of a reduced dose of minced muscle graft (50% of VML defect) within HA+LMN resulted in a 42% improvement of peak tetanic torque production over unrepaired VML affected limbs...
2018: PloS One
https://www.readbyqxmd.com/read/29329103/analysis-of-anti-ganglioside-antibodies-by-a-line-immunoassay-in-patients-with-chronic-inflammatory-demyelinating-polyneuropathies-cidp
#9
Juliane Klehmet, Stefanie Märschenz, Klemens Ruprecht, Benjamin Wunderlich, Thomas Büttner, Rico Hiemann, Dirk Roggenbuck, Andreas Meisel
BACKGROUND: Unlike for acute immune-mediated neuropathies (IN), anti-ganglioside autoantibody (aGAAb) testing has been recommended for only a minority of chronic IN yet. Thus, we used a multiplex semi-quantitative line immunoassay (LIA) to search for aGAAb in chronic-inflammatory demyelinating polyneuropathy (CIDP) and its clinical variants. METHODS: Anti-GAAb to 11 gangliosides and sulfatide (SF) were investigated by LIA in 61 patients with IN (27 typical CIDP, 12 distal-acquired demyelinating polyneuropathy, 6 multifocal-acquired demyelinating sensory/motor polyneuropathy, 10 sensory CIDP, 1 focal CIDP and 5 multifocal-motoric neuropathy), 40 with other neuromuscular disorders (OND) (15 non-immune polyneuropathies, 25 myasthenia gravis), 29 with multiple sclerosis (MS) and 54 healthy controls (HC)...
January 12, 2018: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/29325837/outcomes-of-total-knee-arthroplasty-in-degenerative-osteoarthritic-knee-with-genu-recurvatum
#10
Seung-Suk Seo, Chang-Wan Kim, Chang-Rack Lee, Jin-Hyuk Seo, Do-Hun Kim, Ok-Gul Kim
BACKGROUND: This study aimed to assess the incidence of genu recurvatum without neuromuscular disorders in knees that underwent navigation-assisted total knee arthroplasty (TKA), to evaluate short-term radiologic and clinical results of navigation-assisted TKA in genu recurvatum, and to evaluate differences in results according to the degree of pre-operative hyperextension and type of implant and insert. METHODS: This study retrospectively reviewed 510 knees that underwent navigation-assisted TKA from January 2005 to December 2011...
January 9, 2018: Knee
https://www.readbyqxmd.com/read/29324904/prohibitin-plays-a-critical-role-in-enterovirus-71-neuropathogenesis
#11
Issac Horng Khit Too, Isabelle Bonne, Eng Lee Tan, Justin Jang Hann Chu, Sylvie Alonso
A close relative of poliovirus, enterovirus 71 (EV71) is regarded as an important neurotropic virus of serious public health concern. EV71 causes Hand, Foot and Mouth Disease and has been associated with neurological complications in young children. Our limited understanding of the mechanisms involved in its neuropathogenesis has hampered the development of effective therapeutic options. Here, using a two-dimensional proteomics approach combined with mass spectrometry, we have identified a unique panel of host proteins that were differentially and dynamically modulated during EV71 infection of motor-neuron NSC-34 cells, which are found at the neuromuscular junctions where EV71 is believed to enter the central nervous system...
January 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29317220/acamprosate-rescues-neuronal-defects-in-the-drosophila-model-of-fragile-x-syndrome
#12
Russell L Hutson, Rachel L Thompson, Andrew P Bantel, Charles R Tessier
AIMS: Several off-label studies have shown that acamprosate can provide some clinical benefits in youth with Fragile X Syndrome (FXS), an autism spectrum disorder caused by loss of function of the highly conserved FMR1 gene. This study investigated the ability of acamprosate to rescue cellular, molecular and behavioral defects in the Drosophila model of FXS. MAIN METHODS: A high (100μM) and low (10μM) dose of acamprosate was fed to Drosophila FXS (dfmr1 null) or genetic control (w1118) larvae and then analyzed in multiple paradigms...
January 6, 2018: Life Sciences
https://www.readbyqxmd.com/read/29317055/scapholunate-interosseous-ligament-dysfunction-as-a-source-of-elbow-pain-syndromes-possible-mechanisms-and-implications-for-hand-surgeons-and-therapists
#13
Cigdem Ayhan, Seval Tanrıkulu, Gursel Leblebicioglu
Elbow pain syndromes are common upper extremity musculoskeletal disorders, and they are usually associated with repetitive occupational exposure. Ligaments are often one of the sources of musculoskeletal disorders because of their mechanical and neurological properties. The wrist ligaments are some of the ligaments most vulnerable to occupational exposure. Since most occupational tasks require wrist extension for handling tools and loading, the scapholunate interosseous ligament (SLIL) bears greater strain during loading, which results in creep deformation and hysteresis...
January 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/29315164/effects-of-strength-training-on-postpubertal-adolescent-distance-runners
#14
Richard C Blagrove, Louis P Howe, Emily J Cushion, Adam Spence, Glyn Howatson, Charles R Pedlar, Philip R Hayes
PURPOSE: Strength training activities have consistently been shown to improve running economy (RE) and neuromuscular characteristics, such as force producing ability and maximal speed, in adult distance runners. However the effects on adolescent (<18 years) runners remains elusive. This randomized control trial aimed to examine the effect of strength training on several important physiological and neuromuscular qualities associated with distance running performance. METHODS: Participants (n=25, 13 female, 17...
January 8, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29314903/national-athletic-trainers-association-position-statement-prevention-of-anterior-cruciate-ligament-injury
#15
Darin A Padua, Lindsay J DiStefano, Timothy E Hewett, William E Garrett, Stephen W Marshall, Grace M Golden, Sandra J Shultz, Susan M Sigward
OBJECTIVE:   To provide certified athletic trainers, physicians, and other health care and fitness professionals with recommendations based on current evidence regarding the prevention of noncontact and indirect-contact anterior cruciate ligament (ACL) injuries in athletes and physically active individuals. BACKGROUND:   Preventing ACL injuries during sport and physical activity may dramatically decrease medical costs and long-term disability. Implementing ACL injury-prevention training programs may improve an individual's neuromuscular control and lower extremity biomechanics and thereby reduce the risk of injury...
January 9, 2018: Journal of Athletic Training
https://www.readbyqxmd.com/read/29302566/bridging-the-gap-between-observation-and-brace-treatment-for-adolescent-idiopathic-scoliosis
#16
Eric Chun Pu Chu, Kevin Hsu Kai Huang
Adolescent idiopathic scoliosis (AIS) remains the most common and potentially severe form of scoliosis during the rapid growth period. It is generally accepted that AIS is a multifactorial disease controlled by genetic, hormonal, neuromuscular, and environmental factors. Herein, we describe a case of 12-year-old scoliotic girl with a double curve of initially 26° thoracic and 23° lumbar, seeking chiropractic care. The therapy was provided three times/twice a week for 6 months. Adjustments of the spine through chiropractic, both soreness and mobility, were shown to improve...
April 2017: Journal of Family Medicine and Primary Care
https://www.readbyqxmd.com/read/29295857/defects-in-synaptic-transmission-at-the-neuromuscular-junction-precedes-motor-deficits-in-a-tdp-43q331k-transgenic-mouse-model-of-amyotrophic-lateral-sclerosis
#17
Kirat K Chand, Kah Meng Lee, John D Lee, Hao Qiu, Emily F Willis, Nickolas A Lavidis, Massimo A Hilliard, Peter G Noakes
Transactive response DNA-binding protein-43 (TDP-43) is involved in gene regulation via the control of RNA transcription, splicing, and transport. TDP-43 is a major protein component of ubiquinated inclusions that are found in amyotrophic lateral sclerosis (ALS); however, the function of TDP-43 at the neuromuscular junction (NMJ) and its role in ALS pathogenesis is largely unknown. Here, we show that TDP-43Q331K mutation in mice resulted in impaired neurotransmission by age 3 mo, preceding deficits in motor function and motor neuron loss, which were observed from age 10 mo...
January 2, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29288590/combined-electrical-stimulation-and-exercise-for-swallow-rehabilitation-post-stroke-a-pilot-randomized-control-trial
#18
Lise Sproson, Sue Pownall, Pam Enderby, Jenny Freeman
BACKGROUND: Dysphagia is common after stroke, affecting up to 50% of patients initially. It can lead to post-stroke pneumonia, which causes 30% of stroke-related deaths, a longer hospital stay and poorer health outcomes. Dysphagia care post-stroke generally focuses on the management of symptoms, via modified oral intake textures and adapted posture, rather than direct physical rehabilitation of the swallowing function. Transcutaneous neuromuscular electrical stimulation (NMES) is a promising rehabilitation technology that can be used to stimulate swallowing; however, findings regarding efficacy have been conflicting...
December 30, 2017: International Journal of Language & Communication Disorders
https://www.readbyqxmd.com/read/29283292/morphological-molecular-and-hormonal-adaptations-to-early-morning-versus-afternoon-resistance-training
#19
Milan Sedliak, Michal Zeman, Gabriel Buzgó, Jan Cvecka, Dusan Hamar, Eugen Laczo, Monika Okuliarova, Marian Vanderka, Tomas Kampmiller, Keijo Häkkinen, Juha P Ahtiainen, Juha J Hulmi, Tormod S Nilsen, Håvard Wiig, Truls Raastad
It has been clearly established that maximal force and power is lower in the morning compared to noon or afternoon hours. This morning neuromuscular deficit can be diminished by regularly training in the morning hours. However, there is limited and contradictory information upon hypertrophic adaptations to time-of-day-specific resistance training. Moreover, no cellular or molecular mechanisms related to muscle hypertrophy adaptation have been studied with this respect. Therefore, the present study examined effects of the time-of-day-specific resistance training on muscle hypertrophy, phosphorylation of selected proteins, hormonal concentrations and neuromuscular performance...
December 28, 2017: Chronobiology International
https://www.readbyqxmd.com/read/29282074/the-rap-activator-gef26-regulates-synaptic-growth-and-neuronal-survival-via-inhibition-of-bmp-signaling
#20
Keunjung Heo, Minyeop Nahm, Min-Jung Lee, Young-Eun Kim, Chang-Seok Ki, Seung Hyun Kim, Seungbok Lee
In Drosophila, precise regulation of BMP signaling is essential for normal synaptic growth at the larval neuromuscular junction (NMJ) and neuronal survival in the adult brain. However, the molecular mechanisms underlying fine-tuning of BMP signaling in neurons remain poorly understood. We show that loss of the Drosophila PDZ guanine nucleotide exchange factor Gef26 significantly increases synaptic growth at the NMJ and enhances BMP signaling in motor neurons. We further show that Gef26 functions upstream of Rap1 in motor neurons to restrain synaptic growth...
December 28, 2017: Molecular Brain
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