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Periodic limbs movement

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https://www.readbyqxmd.com/read/28731517/mental-steps-differential-activation-of-internal-pacemakers-in-motor-imagery-and-in-mental-imitation-of-gait
#1
Lucia Maria Sacheli, Laura Zapparoli, Carlo De Santis, Matteo Preti, Catia Pelosi, Nicola Ursino, Alberto Zerbi, Giuseppe Banfi, Eraldo Paulesu
Gait imagery and gait observation can boost the recovery of locomotion dysfunctions; yet, a neurologically justified rationale for their clinical application is lacking as much as a direct comparison of their neural correlates. Using functional magnetic resonance imaging, we measured the neural correlates of explicit motor imagery of gait during observation of in-motion videos shot in a park with a steady cam (Virtual Walking task). In a 2 × 2 factorial design, we assessed the modulatory effect of gait observation and of foot movement execution on the neural correlates of the Virtual Walking task: in half of the trials, the participants were asked to mentally imitate a human model shown while walking along the same route (mental imitation condition); moreover, for half of all the trials, the participants also performed rhythmic ankle dorsiflexion as a proxy for stepping movements...
July 21, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28715236/effects-of-different-heel-raise-lower-exercise-interventions-on-the-strength-of-plantarflexion-balance-and-gait-parameters-in-stroke-survivors
#2
Seung-Mi Lee, Heon-Seock Cynn, Tae-Lim Yoon, Ji-Hyun Lee
The objective of this study was to investigate the effects of Heel-Raise-Lower Exercise (HRLE) interventions on the strength of plantarflexion, balance, and gait parameters in people with stroke. Specifically, this study compared the two different HRLEs to identify whether heels raise-lower with forefoot on a block (HRB) is more effective or ineffective to enhance strength and functional capacities than heels raise-lower on a level floor (HRL) exercise in people with stroke. Repetitive heel raise-lower is a common exercise for improving the strength and power of ankle plantarflexors...
July 17, 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/28714771/acute-effect-of-static-stretching-on-lower-limb-movement-performance-by-using-stabl-virtual-reality-system
#3
Mariam A Ameer, Qassim I Muaidi
CONTEXT: The effect of acute static stretch (ASS) on the lower limb RT has been recently questioned to decrease the risk of falling and injuries in situations requiring a rapid reaction, as in the cases of balance disturbance. OBJECTIVE: The main purpose of this study was to detect the effect of ASS on the lower limb RT by using virtual reality device. DESIGN: Two Group Control Group design. SETTING: Research laboratory...
July 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28704685/dynamic-balance-changes-within-three-weeks-of-fitting-a-new-prosthetic-foot-component
#4
Jenny A Kent, Nicholas Stergiou, Shane R Wurdeman
Balance during walking is of high importance to prosthesis users and may affect walking during baseline observation and evaluation. The aim of this study was to determine whether changes in walking balance occurred during an adaptation period following the fitting of a new prosthetic component. Margin of stability in the medial-lateral direction (MOSML) and an anterior instability margin (AIM) were used to quantify the dynamic balance of 21 unilateral transtibial amputees during overground walking. Participants trialled two prosthetic feet presenting contrasting movement/balance constraints; a Higher Activity foot similar to that of their own prosthesis, and a Lower Activity foot...
July 5, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28700594/hierarchical-patterning-modes-orchestrate-hair-follicle-morphogenesis
#5
James D Glover, Kirsty L Wells, Franziska Matthäus, Kevin J Painter, William Ho, Jon Riddell, Jeanette A Johansson, Matthew J Ford, Colin A B Jahoda, Vaclav Klika, Richard L Mort, Denis J Headon
Two theories address the origin of repeating patterns, such as hair follicles, limb digits, and intestinal villi, during development. The Turing reaction-diffusion system posits that interacting diffusible signals produced by static cells first define a prepattern that then induces cell rearrangements to produce an anatomical structure. The second theory, that of mesenchymal self-organisation, proposes that mobile cells can form periodic patterns of cell aggregates directly, without reference to any prepattern...
July 2017: PLoS Biology
https://www.readbyqxmd.com/read/28685893/alterations-in-white-matter-microstructure-are-associated-with-goal-directed-upper-limb-movement-segmentation-in-children-born-extremely-preterm
#6
Niklas Lenfeldt, Anna-Maria Johansson, Erik Domellöf, Katrine Riklund, Louise Rönnqvist
Altered white matter microstructure is commonly found in children born preterm (PT), especially those born at an extremely low gestational age (GA). These children also commonly show disturbed motor function. This study explores the relation between white matter alterations and upper-limb movement segmentation in 41 children born PT (19 girls), and 41 children born at term (18 girls) at 8 years. The PT group was subdivided into extremely PT (E-PT; GA = 25-27 weeks, N = 10), very PT (V-PT; GA = 28-32 weeks, N = 13), and moderately PT (M-PT; GA = 33-35 weeks, N = 18)...
July 7, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28681708/influence-of-autonomic-nervous-system-dysfunction-in-the-genesis-of-sleep-disorders-in-fibromyalgia-patients
#7
Maurizio Rizzi, Dejan Radovanovic, Pierachille Santus, Andrea Airoldi, Francesca Frassanito, Silvia Vanni, Andrea Cristiano, Ignazio Francesco Masala, Piercarlo Sarzi-Puttini
OBJECTIVES: Fibromyalgia (FM) is characterised by chronic musculoskeletal pain, autonomic nervous system (ANS) dysfunction, and disturbed sleep. The aim of this study was to evaluate the influence of ANS dysfunction on the genesis of sleep disorders. METHODS: Fifty female FM patients and 45 healthy subjects matched for age, gender and body mass index underwent a clinical, polysomnographic and autonomic profile evaluation at rest and during a tilt test in order to determine muscle sympathetic nerve activity (MSNA), plasma catecholamine levels, and the spectral indices of cardiac sympathetic (LFRR) and vagal (HFRR) modulation computed by means of the spectrum analysis of RR during sleep...
May 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28674872/efficacy-of-wearing-compression-garments-during-post-exercise-period-after-two-repeated-bouts-of-strenuous-exercise-a-randomized-crossover-design-in-healthy-active-males
#8
Kazushige Goto, Sahiro Mizuno, Ayaka Mori
BACKGROUND: The efficacy of wearing [a] compression garment (CG) between repeated bouts of exercise within a same day has not been fully understood. The present study determined the effect of wearing a CG after strenuous exercise sessions (consisting of sprint exercise, resistance exercise, drop jump) twice a day on exercise performance, muscle damage, and inflammatory responses. METHODS: Eleven physically active males (age, 22.7 ± 0.9 years; height, 175...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28669300/contralateral-c-7-transfer-is-direct-repair-really-superior-to-grafting
#9
Anil Bhatia, Piyush Doshi, Ashok Koul, Vitrag Shah, Justin M Brown, Mahmoud Salama
It is not uncommon for a severe traumatic brachial plexus injury to involve all 5 roots, resulting in a flail upper limb. In such cases, surgical reconstruction is often palliative, providing only rudimentary function. Nerve transfers are the mainstay of reconstructive strategies due to the predominance of root avulsions. Consistent results are obtained only for restoration of shoulder stability and elbow flexion, whereas restoring useful hand function remains a challenge. The transfer of the contralateral C-7 (cC-7) is commonly used in an attempt to restore basic hand function, but results are notoriously unreliable and inconsistent...
July 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28666805/change-in-coefficient-of-fatigability-following-rapid-repetitive-movement-training-in-post-stroke-spastic-paresis-a-prospective-open-label-observational-study
#10
Michele Vecchio, Jean-Michel Gracies, Francesco Panza, Francesca Fortunato, Giovanna Vitaliti, Giulia Malaguarnera, Nicoletta Cinone, Raffaele Beatrice, Maurizio Ranieri, Andrea Santamato
BACKGROUND: In post-stroke patients, the possibility of performing an active ankle dorsiflexion movement is favorable for the recovery of gait. Moreover, the fatigue due to repetitive active ankle dorsiflexion could reduce the speed gait. We assessed the change in coefficient of fatigability of active ankle dorsiflexion after a home-based self-rehabilitative procedure in post-stroke patients. METHODS: In a prospective open-label observational study conducted in 2 university hospitals, a home-based self-rehabilitation treatment comprising two 12-minute sessions per day (3 times per week for 3 months) was performed by 10 outpatients with post-stroke lower limb impairment...
June 27, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28653211/functional-psychogenic-stereotypies
#11
José Fidel Baizabal-Carvallo, Joseph Jankovic
Functional (psychogenic) movement disorders (FMDs) may present with a broad spectrum of phenomenology including stereotypic movements. We aimed to characterize the phenomenology of functional stereotypies and compare these features with those observed in 65 patients with tardive dyskinesia (TD). From a cohort of 184 patients with FMDs, we identified 19 (10.3%) with functional stereotypies (FS). There were 15 women and 4 men, with a mean age at onset of 38.6 ± 17.4 years. Among the patients with FS, there were 9 (47%) with orolingual dyskinesia/stereotypy, 9 (47%) with limb stereotypies, 6 (32%) with trunk stereotypies, and 2 (11%) with respiratory dyskinesia as part of orofacial-laryngeal-trunk stereotypy...
July 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28643460/periodic-limb-movement-in-sleep-and-sickle-cell-disease-a-neglected-association
#12
Ana C Cabañas-Pedro, Suely Roizenblatt, Altay A L de Souza, Sérgio Tufik, Maria S Figueiredo
High frequency of periodic limb movements in sleep (PLMS) has been described among children with sickle cell disease (SCD), but there is little information about PLMS among adults with SCD. We aim to determine the frequency of PLMS among adults with SCD and to identify possible associations with iron status and haemolytic parameters. We analysed polysomnography on 99 adults: 74 with sickle cell anaemia (HbSS), 19 with HbSC (double heterozygosis HbS and HbC) and 6 with HbS-beta thalassaemia. Laboratory data were collected close to the time of the polysomnography examination...
June 23, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28639263/subthalamic-beta-dynamics-mirror-parkinsonian-bradykinesia-months-after-neurostimulator-implantation
#13
Leon Amadeus Steiner, Wolf-Julian Neumann, Franziska Staub-Bartelt, Damian M Herz, Huiling Tan, Alek Pogosyan, Andrea A Kuhn, Peter Brown
BACKGROUND: Exaggerated oscillatory activity in the beta frequency band in the subthalamic nucleus has been suggested to be related to bradykinesia in Parkinson's disease (PD). However, studies seeking correlations between such activity in the local field potential and motor performance have been limited to the immediate postoperative period, which may be confounded by a stun effect that leads to the temporary alleviation of PD deficits. METHODS: Local field potentials were recorded simultaneously with motor performance in PD patients several months after neurostimulator implantation...
June 22, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28626420/restless-legs-syndrome-from-pathophysiology-to-clinical-diagnosis-and-management
#14
REVIEW
Shiyi Guo, Jinsha Huang, Haiyang Jiang, Chao Han, Jie Li, Xiaoyun Xu, Guoxin Zhang, Zhicheng Lin, Nian Xiong, Tao Wang
Restless legs syndrome (RLS), a common neurological sensorimotor disorder in western countries, has gained more and more attention in Asian countries. The prevalence of RLS is higher in older people and females. RLS is most commonly related to iron deficiency, pregnancy and uremia. The RLS symptoms show a significant circadian rhythm and a close relationship to periodic limb movements (PLMs) in clinical observations, while the pathophysiological pathways are still unknown. The diagnostic criteria have been revised in 2012 to improve the validity of RLS diagnosis...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28619181/multifactorial-sleep-disturbance-in-parkinson-s-disease
#15
REVIEW
J Andrew Albers, Pratap Chand, A Michael Anch
Parkinson's disease (PD) is the second most common neurodegenerative disorder, ranking only behind Alzheimer's disease and affecting 2% of the population over the age of 65. Pathophysiologically, PD is characterized by selective degeneration of the dopaminergic neurons of the substantia nigra pars compacta (SNpc) and striatal dopamine depletion. Patients may also exhibit mild-to-severe degeneration of other central and peripheral nervous tissues. The most dramatic symptoms of the disease are profound dopamine-responsive motor disturbances, including bradykinesia, akinesia, rigidity, resting tremor, and postural instability...
July 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28606179/modifying-upper-limb-inter-joint-coordination-in-healthy-subjects-by-training-with-a-robotic-exoskeleton
#16
Tommaso Proietti, Emmanuel Guigon, Agnès Roby-Brami, Nathanaël Jarrassé
BACKGROUND: The possibility to modify the usually pathological patterns of coordination of the upper-limb in stroke survivors remains a central issue and an open question for neurorehabilitation. Despite robot-led physical training could potentially improve the motor recovery of hemiparetic patients, most of the state-of-the-art studies addressing motor control learning, with artificial virtual force fields, only focused on the end-effector kinematic adaptation, by using planar devices...
June 12, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28572764/the-effects-of-modified-constraint-induced-movement-therapy-in-acute-subcortical-cerebral-infarction
#17
Changshen Yu, Wanjun Wang, Yue Zhang, Yizhao Wang, Weijia Hou, Shoufeng Liu, Chunlin Gao, Chen Wang, Lidong Mo, Jialing Wu
Background: Constraint-induced movement therapy (CIMT) promotes upper extremity recovery post stroke, however, it is difficult to implement clinically due to its high resource demand and safety of the restraint. Therefore, we propose that modified CIMT (mCIMT) be used to treat individuals with acute subcortical infarction. Objective: To evaluate the therapeutic effects of mCIMT in patients with acute subcortical infarction, and investigate the possible mechanisms underlying the effect. Methods: The role of mCIMT was investigated in 26 individuals experiencing subcortical infarction in the preceding 14 days...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28549651/enriched-environment-alters-the-behavioral-profile-of-tenascin-c-deficient-mice
#18
V Stamenkovic, I Milenkovic, N Galjak, V Todorovic, P Andjus
Tenascin-C (TnC) is an extracellular matrix glycoprotein implicated in a variety of processes ranging from brain development to synaptic plasticity in the adult vertebrates. Although the role of the TnC gene in regulation of behavior has been investigated, it remained elusive how TnC deficiency interacts with the environment in shaping the behavioral phenotype. To address this, 3-week-old TnC+/+ and TnC-/- male mice were housed over an 8-week period in standard conditions (SC), or enriched environment (EE)...
May 24, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28543751/a-pilates-exercise-program-with-pelvic-floor-muscle-contraction-is-it-effective-for-pregnant-women-a-randomized-controlled-trial
#19
Naiara T Dias, Letícia R Ferreira, Mariana G Fernandes, Ana Paula M Resende, Vanessa S Pereira-Baldon
AIMS: The aim of this study was to evaluate the effectiveness of a Pilates exercise program with pelvic floor muscle (PFM) contraction compared to a conventional intervention in pregnant women. METHODS: Fifty primiparous women, without gestational alterations, were randomized to the Pilates group (n = 25) and control group (n = 25). Interventions for both groups consisted of twice-weekly sessions of 1 h each during the period between the 14-16th and 32-34th gestational weeks...
May 23, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28525311/telerehabilitation-of-patients-with-injuries-of-the-lower-extremities
#20
Andriy I Tsvyakh, Andriy J Hospodarskyy
INTRODUCTION: Timely access to orthopedic rehabilitation is an important problem for the Ukrainian healthcare system. The international orthopedic community aims to achieve the best possible outcome for patient care by modifying rehabilitation methods and using telemedicine technology. The theme of this article is to discuss the integration of telemedicine technology in the rehabilitation of patients with injuries of the lower extremities. MATERIALS AND METHODS: Consecutive patients were recruited over a 2-year period...
May 19, 2017: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
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