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Dynamic Neuromuscular Stabilization

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https://www.readbyqxmd.com/read/28370538/shoulder-position-sense-in-volleyball-players-with-infraspinatus-atrophy-secondary-to-suprascapular-nerve-neuropathy
#1
Samuele Contemori, Andrea Biscarini
Isolated infraspinatus atrophy (IIA) is a common condition among overhead-activity athletes, which affects the hitting shoulder and is caused by suprascapular nerve injury. Since the suprascapular nerve is a mixed nerve, such damage could lead to reduced afferent proprioceptive information and impaired shoulder sensorimotor control. This study aims to evaluate the proprioception of the shoulder with IIA, through the assessment of shoulder position sense. The shoulder position sense was assessed in 24 professional volleyball players (12 players with IIA, and 12 healthy players) with a blind dynamic shoulder repositioning test (all participants were blindfolded during the test)...
March 29, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28253561/the-neurology-of-acutely-failing-respiratory-mechanics
#2
Eelco F M Wijdicks
Forces involved in breathing-which effectively pull in air-are the diaphragmatic, intercostal, spine, and neck muscles. Equally important is the bulbar musculature maintaining the architecture of a patent airway conduit and abdominal wall and internal intercostal muscles providing cough. Acute injury along a neural trajectory from brainstem to muscle will impair the coordinated interaction between these muscle groups. Acutely failing respiratory mechanics can be caused by central and peripheral lesions. In central lesions, the key lesion is in the nucleus ambiguus innervating the dilator muscles of the soft palate, pharynx, and larynx, but abnormal respiratory mechanics rarely coincide with abnormalities of the respiratory pattern generator...
April 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28243195/part-2-adaptation-of-gait-kinematics-in-unilateral-cerebral-palsy-demonstrates-preserved-independent-neural-control-of-each-limb
#3
Thomas C Bulea, Christopher J Stanley, Diane L Damiano
Motor adaptation, or alteration of neural control in response to a perturbation, is a potential mechanism to facilitate motor learning for rehabilitation. Central nervous system deficits are known to affect locomotor adaptation; yet we demonstrated that similar to adults following stroke, children with unilateral brain injuries can adapt step length in response to unilateral leg weighting. Here, we extend our analysis to explore kinematic strategies underlying step length adaptation and utilize dynamical systems approaches to elucidate how neural control may differ in those with hemiplegic CP across legs and compared to typically developing controls...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28192831/training-effects-of-the-fifa-11-and-harmoknee-on-several-neuromuscular-parameters-of-physical-performance-measures
#4
RANDOMIZED CONTROLLED TRIAL
Francisco Ayala, Carlos Pomares-Noguera, Francisco Javier Robles-Palazón, Maria Del Pilar García-Vaquero, Ignacio Ruiz-Pérez, Sergio Hernández-Sánchez, Mark De Ste Croix
The main purpose of this study was to analyse the training effects of the FIFA 11+ and Harmoknee on several parameters of physical performance measures in youth amateur football players. 41 adolescent players were randomised within each team into 2 groups (team 1: control vs. FIFA 11+; team 2: control vs. Harmoknee). The FIFA 11+ and Harmoknee groups performed the program 3 times a week for 4 weeks; the control groups completed their usual warm-up routines. 13 physical performance measures (joint range of motion, dynamic postural control, single legged hop limb symmetry, sprint time, jumping height and agility) were assessed...
April 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28154888/permanent-knee-sensorimotor-system-changes-following-acl-injury-and-surgery
#5
John Nyland, Collin Gamble, Tiffany Franklin, David N M Caborn
The cruciate ligaments are components of the knee capsuloligamentous system providing vital neurosensory and biomechanical function. Since most historical primary ACL repair attempts were unsuccessful, reconstruction has become the preferred surgery. However, an increased understanding of the efficacy of lesion-site scaffolding, innovative suturing methods and materials, and evolving use of biological healing mediators such as platelet-rich plasma and stem cells has prompted reconsideration of what was once believed to be impossible...
February 2, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27941275/increased-postural-sway-and-changes-in-the-neuromuscular-activities-of-the-ankle-stabilizing-muscles-at-ovulation-in-healthy-young-women
#6
Haneul Lee, JongEun Yim
Lateral ankle sprains are one of the most common injuries among the physically active subjects. Ankle inversion-eversion laxity is greater and dynamic postural control is less in women compared with men. The purpose of this study was to examine differences in postural sway and its effects on the neuromuscular activities of the ankle stabilizing muscles during the menstrual cycle in young women. Fourteen young women with regular menstrual cycles participated in this experiment. Postural sway and electromyographic signals of the lateral gastrocnemius, peroneus longus (PL), and tibialis anterior (TA) were recorded while the participants performed eight different balance tasks at ovulation and early follicular phase during one full menstrual cycle...
2016: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/27824252/elite-female-basketball-players-body-weight-neuromuscular-training-and-performance-on-the-y-balance-test
#7
RANDOMIZED CONTROLLED TRIAL
Roberto Benis, Matteo Bonato, Antonio La La Torre
CONTEXT: Neuromuscular training enhances unconscious motor responses by stimulating both the afferent signals and central mechanisms responsible for dynamic joint control. Dynamic joint-control training is a vital component of injury-prevention programs. OBJECTIVE: To investigate the effects of body-weight neuromuscular training on Y-Balance Test (YBT) performance and postural control in female basketball players. DESIGN: Randomized controlled clinical trial...
September 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/27814667/assessment-of-relationships-between-joint-motion-quality-and-postural-control-in-patients-with-chronic-ankle-joint-instability
#8
Dawid Bączkowicz, Krzysztof Falkowski, Edyta Majorczyk
Study Design Controlled laboratory study, cross sectional. Background Lateral ankle sprains are among the most common injuries encountered during athletic participation. Following the initial injury there is an alarmingly high risk of re-injury and development of chronic ankle instability (CAI), which is dependent on a combination of factors, including sensorimotor deficits and changes in the biomechanical environment of the ankle joint. Objective To evaluate CAI-related disturbances in arthrokinematic motion quality and postural control and the relationships between them...
November 4, 2016: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/27679561/a-case-for-microtubule-vulnerability-in-amyotrophic-lateral-sclerosis-altered-dynamics-during-disease
#9
REVIEW
Jayden A Clark, Elise J Yeaman, Catherine A Blizzard, Jyoti A Chuckowree, Tracey C Dickson
Amyotrophic lateral sclerosis (ALS) is an aggressive multifactorial disease converging on a common pathology: the degeneration of motor neurons (MNs), their axons and neuromuscular synapses. This vulnerability and dysfunction of MNs highlights the dependency of these large cells on their intracellular machinery. Neuronal microtubules (MTs) are intracellular structures that facilitate a myriad of vital neuronal functions, including activity dependent axonal transport. In ALS, it is becoming increasingly apparent that MTs are likely to be a critical component of this disease...
2016: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/27669185/examining-fundamental-movement-competency-and-closed-chain-upper-extremity-dynamic-balance-in-swimmers
#10
Garrett S Bullock Spt, Nate Brookerson, Amy M Knab, Robert J Butler
Abnormal fundamental movement patterns and upper quarter dynamic balance are proposed mechanisms affecting athletic performance and injury risk. There are few studies investigating functional movement and closed chain upper extremity dynamic stability in swimmers. The purpose of this study was to determine differences in fundamental movement competency and closed chain upper extremity dynamic balance, utilizing the Functional Movement Screen (FMS) and Upper Quarter Y-Balance Test (YBT-UQ), of high school (HS; n=70) and collegiate (COL; n=70) swimmers...
September 16, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27632875/effects-of-a-6-week-neuromuscular-rehabilitation-program-on-ankle-evertor-strength-and-postural-stability-in-elite-women-field-hockey-players-with-chronic-ankle-instability
#11
Taegyu Kim, Eunkuk Kim, Hokyung Choi
OBJECTIVE: To determine whether a neuromuscular rehabilitation program can improve postural stability, and ankle evertor strength, and to examine the temporal changes and persistence of the rehabilitation effects in athletes with chronic ankle instability (CAI). DESIGN: A total of 21 national women's field hockey players participated in this study (CAI, n = 12; control, n = 9). Main outcome measures included isokinetic ankle evertor strength (peak torque, PT; total work, TW) at 30°/s, 60°/s, 90°/s and 120°/s, mediolateral stability index (MSI), and dynamic stability test (TCT)...
August 24, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27459095/multiscale-simulations-suggest-a-mechanism-for-the-association-of-the-dok7-ph-domain-with-pip-containing-membranes
#12
Amanda Buyan, Antreas C Kalli, Mark S P Sansom
Dok7 is a peripheral membrane protein that is associated with the MuSK receptor tyrosine kinase. Formation of the Dok7/MuSK/membrane complex is required for the activation of MuSK. This is a key step in the complex exchange of signals between neuron and muscle, which lead to neuromuscular junction formation, dysfunction of which is associated with congenital myasthenic syndromes. The Dok7 structure consists of a Pleckstrin Homology (PH) domain and a Phosphotyrosine Binding (PTB) domain. The mechanism of the Dok7 association with the membrane remains largely unknown...
July 2016: PLoS Computational Biology
https://www.readbyqxmd.com/read/27448801/a-pilot-study-of-biomechanical-assessment-before-and-after-an-integrative-training-program-for-adolescents-with-juvenile-fibromyalgia
#13
Susan T Tran, Staci Thomas, Christopher DiCesare, Megan Pfeiffer, Soumitri Sil, Tracy V Ting, Sara E Williams, Gregory D Myer, Susmita Kashikar-Zuck
BACKGROUND: Adolescents with juvenile fibromyalgia (JFM) tend to be very sedentary and avoid participation in physical activity. A prior study suggested that JFM patients show altered biomechanics compared to healthy adolescents which may make them more prone to pain/injury during exercise. A new intervention combining well established cognitive behavioral therapy (CBT) techniques with specialized neuromuscular exercise -Fibromyalgia Integrative Training for Teens (FIT Teens) was developed and shown to be promising in improving functioning in adolescents with JFM...
July 22, 2016: Pediatric Rheumatology Online Journal
https://www.readbyqxmd.com/read/27421773/molecular-modeling-and-structural-analysis-of-nachr-variants-uncovers-the-mechanism-of-resistance-to-snake-toxins
#14
D Gunasekaran, J Sridhar, V Suryanarayanan, N C Manimaran, Sanjeev Kumar Singh
Nicotinic acetylcholine receptors (nAChRs) are neuromuscular proteins responsible for muscle contraction upon binding with chemical stimulant acetylcholine (ACh). The α-neurotoxins of snake mimic the structure of ACh and attacks nAChRs, which block the flow of ACh and leads to numbness and paralysis. The toxin-binding site of alpha subunit in the nAChRs is highly conserved throughout chordate lineages with few exceptions in resistance organisms. In this study, we have analyzed the sequence and structures of toxin-binding/resistant nAChRs and their interaction stability with toxins through molecular docking and molecular dynamics simulation (MDS)...
July 15, 2016: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/27398918/the-effects-of-the-gaa-15-training-program-on-neuromuscular-outcomes-in-gaelic-football-and-hurling-players-a-randomized-cluster-trial
#15
Edwenia O'Malley, John C Murphy, Ulrik McCarthy Persson, Conor Gissane, Catherine Blake
Team-based neuromuscular training programs for injury prevention have been tested primarily in female and adolescent athletes in soccer, handball and basketball, with limited research in adult male field sports. This study explored whether the GAA 15, a multifaceted 8-week neuromuscular training program could improve risk factors for lower limb injury in male Gaelic footballers and hurlers. Four Gaelic sports collegiate teams were randomized into intervention or control groups. Two teams, one football, one hurling, (n=41), were allocated to the intervention, undertaking a 15 minute program of neuromuscular training exercises at the start of team training sessions, twice weekly for 8 weeks...
July 7, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27360252/significant-functional-improvement-in-a-person-with-multiple-sclerosis-utilizing-dynamic-neuromuscular-stabilization-1333-june-2-8-00-am-8-20-am
#16
F V Harding, Kenneth Mengel
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27300103/effects-of-a-6-week-neuromuscular-rehabilitation-program-on-ankle-evertor-strength-and-postural-stability-in-elite-women-field-hockey-players-with-chronic-ankle-instability
#17
Taegyu Kim, Eunkuk Kim, Hokyung Cho
OBJECTIVE: To determine whether a neuromuscular rehabilitation program can improve postural stability, and ankle evertor strength, and to examine the temporal changes and persistence of the rehabilitation effects in athletes with chronic ankle instability (CAI). DESIGN: A total of 21 national women's field hockey players participated in this study (CAI, n = 12; control, n = 9). Main outcome measures included isokinetic ankle evertor strength (peak torque, PT; total work, TW) at 30°/s, 60°/s, 90°/s and 120°/s, mediolateral stability index (MSI), and dynamic stability test (TCT)...
June 14, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27269802/force-sense-of-the-knee-not-affected-by-fatiguing-the-knee-extensors-and-flexors
#18
Katelyn F Allison, Timothy C Sell, Anne Benjaminse, Scott M Lephart
CONTEXT: Knee injuries commonly occur in later stages of competition, indicating that fatigue may influence dynamic knee stability. Force sense (FS) is a submodality of proprioception influenced by muscle mechanoreceptors, which, if negatively affected by fatigue, may result in less-effective neuromuscular control. OBJECTIVES: To determine the effects of peripheral fatigue on FS of the quadriceps and hamstrings. DESIGN: Quasi-experimental study design...
May 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27239774/the-effect-of-physical-exhaustion-on-gait-stability-in-young-and-older-individuals
#19
Dennis Hamacher, Alexander Törpel, Daniel Hamacher, Lutz Schega
Fatigue directly affects key features of the sensorimotor system which disorganizes voluntary control of movement accuracy. Local dynamic stability of walking is considered a sensitive measure for neuromuscular performance. To gain greater insight in the role of fatigue in motor behaviour in older and young adults during walking, the current experiment analyses gait patterns of healthy young but maximal fatigued individuals and gait patterns in submaximal fatigued older adults. Ten young and 18 older subjects performed a bicycle incremental exercise test on a cycle ergometer...
July 2016: Gait & Posture
https://www.readbyqxmd.com/read/27210236/ultrasound-measurement-of-abdominal-muscle-thickness-with-and%C3%A2-without-transducer-fixation-during-standing-postural-tasks-in%C3%A2-participants-with-and-without-chronic-low-back-pain-intrasession-and-intersession-reliability
#20
Fatemeh Ehsani, Amir Massoud Arab, Mahyar Salavati, Shapour Jaberzadeh, Abdolhamid Hajihasani
BACKGROUND: Ultrasound (US) imaging can be used for the measurement of trunk muscle activity. The displacements of US transducer, especially during more dynamic situations, however, may disturb the measurement results. To control this variable, some studies have used transducer fixator (TF), but no study evaluated the effect of using TF on US reliability in dynamic situations. The present study discriminated this issue. OBJECTIVE: To investigate the intrasession and intersession reliability of lateral abdominal muscle thickness measurement in dynamic standing postural tasks by using US with and without TF in participants with and without chronic low back pain (CLBP)...
December 2016: PM & R: the Journal of Injury, Function, and Rehabilitation
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