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effect of locomotor training

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https://www.readbyqxmd.com/read/27914920/can-lowering-the-guidance-force-of-robot-assisted-gait-training-induce-a-sufficient-metabolic-demand-in-subacute-dependent-ambulatory-stroke-patients
#1
So Young Lee, Eun Young Han, Bo Ryun Kim, Min Ho Chun, Yong Ki Lee
OBJECTIVE: To assess the effects of guidance force (GF) and gait speed (GS) on cardiorespiratory responses and energy cost in subacute dependent ambulatory stroke patients. DESIGN: Cross sectional study. SETTING: University rehabilitation hospital. PARTICIPANTS: Ten subacute stroke patients (mean age: 64.50±19.20), who were dependent ambulators (functional ambulation category [FAC] ≤2). INTERVENTIONS: Patients participated in cardiorespiratory tests during robot-assisted gait training...
November 30, 2016: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/27899894/moderate-load-eccentric-exercise-a-distinct-novel-training-modality
#2
REVIEW
Hans Hoppeler
Over the last 20 years a number of studies have been published using progressive eccentric exercise protocols on motorized ergometers or similar devices that allow for controlled application of eccentric loads. Exercise protocols ramp eccentric loads over an initial 3 weeks period in order to prevent muscle damage and delayed onset muscle soreness. Final training loads reach 400-500 W in rehabilitative settings and over 1200 W in elite athletes. Training is typically carried out three times per week for durations of 20-30 min...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27891256/scale-dependent-signal-identification-in-low-dimensional-subspace-motor-imagery-task-classification
#3
Qingshan She, Haitao Gan, Yuliang Ma, Zhizeng Luo, Tom Potter, Yingchun Zhang
Motor imagery electroencephalography (EEG) has been successfully used in locomotor rehabilitation programs. While the noise-assisted multivariate empirical mode decomposition (NA-MEMD) algorithm has been utilized to extract task-specific frequency bands from all channels in the same scale as the intrinsic mode functions (IMFs), identifying and extracting the specific IMFs that contain significant information remain difficult. In this paper, a novel method has been developed to identify the information-bearing components in a low-dimensional subspace without prior knowledge...
2016: Neural Plasticity
https://www.readbyqxmd.com/read/27888284/attenuation-of-the-anxiogenic-effects-of-cocaine-by-5-ht1b-autoreceptor-stimulation-in-the-bed-nucleus-of-the-stria-terminalis-of-rats
#4
Adam K Klein, Michael A Brito, Sayeh Akhavan, Dylan R Flanagan, Nikki Le, Tatum Ohana, Anand S Patil, Erin M Purvis, Carl Provenzano, Alex Wei, Lucy Zhou, Aaron Ettenberg
RATIONALE: Cocaine produces significant aversive/anxiogenic actions whose underlying neurobiology remains unclear. A possible substrate contributing to these actions is the serotonergic (5-HT) pathway projecting from the dorsal raphé (DRN) to regions of the extended amygdala, including the bed nucleus of the stria terminalis (BNST) which have been implicated in the production of anxiogenic states. OBJECTIVES: The present study examined the contribution of 5-HT signaling within the BNST to the anxiogenic effects of cocaine as measured in a runway model of drug self-administration...
November 25, 2016: Psychopharmacology
https://www.readbyqxmd.com/read/27881723/intraspinal-microstimulation-and-diaphragm-activation-following-cervical-spinal-cord-injury
#5
Lynne M Mercier, Elisa J Gonzalez-Rothi, Kristi A Streeter, Savannah S Posgai, Alexander S Poirier, David D Fuller, Paul J Reier, David M Baekey
Intraspinal microstimulation (ISMS), using implanted electrodes, can evoke locomotor movements after spinal cord injury (SCI), but has not been explored in the context of respiratory motor output. An advantage over epidural and direct muscle stimulation is the potential of ISMS to selectively stimulate components of the spinal respiratory network. The present study tested the hypothesis that medullary respiratory activity could be used to trigger mid-cervical ISMS and diaphragm motor unit activation in rats with cervical SCI...
November 23, 2016: Journal of Neurophysiology
https://www.readbyqxmd.com/read/27875927/what-is-being-trained-how-divergent-forms-of-plasticity-compete-to-shape-locomotor-recovery-after-spinal-cord-injury
#6
J Russell Huie, Kazuhito Morioka, Jenny Haefeli, Adam R Ferguson
Spinal cord injury (SCI) is a devastating syndrome that produces dysfunction in motor and sensory systems, manifesting as chronic paralysis, sensory changes, and pain disorders. The multifaceted and heterogeneous nature of SCI has made effective rehabilitative strategies challenging. Work over the last 40 years has aimed to overcome these obstacles by harnessing the intrinsic plasticity of the spinal cord to improve functional locomotor recovery. Intensive training after SCI facilitates lower extremity function and has shown promise as a tool for retraining the spinal cord by engaging innate locomotor circuitry in the lumbar cord...
November 22, 2016: Journal of Neurotrauma
https://www.readbyqxmd.com/read/27853668/the-effectiveness-and-safety-of-exoskeletons-as-assistive-and-rehabilitation-devices-in-the-treatment-of-neurologic-gait-disorders-in-patients-with-spinal-cord-injury-a-systematic-review
#7
Christian Fisahn, Mirko Aach, Oliver Jansen, Marc Moisi, Angeli Mayadev, Krystle T Pagarigan, Joseph R Dettori, Thomas A Schildhauer
Study Design Systematic review. Clinical Questions (1) When used as an assistive device, do wearable exoskeletons improve lower extremity function or gait compared with knee-ankle-foot orthoses (KAFOs) in patients with complete or incomplete spinal cord injury? (2) When used as a rehabilitation device, do wearable exoskeletons improve lower extremity function or gait compared with other rehabilitation strategies in patients with complete or incomplete spinal cord injury? (3) When used as an assistive or rehabilitation device, are wearable exoskeletons safe compared with KAFO for assistance or other rehabilitation strategies for rehabilitation in patients with complete or incomplete spinal cord injury? Methods PubMed, Cochrane, and Embase databases and reference lists of key articles were searched from database inception to May 2, 2016, to identify studies evaluating the effectiveness of wearable exoskeletons used as assistive or rehabilitative devices in patients with incomplete or complete spinal cord injury...
December 2016: Global Spine Journal
https://www.readbyqxmd.com/read/27829315/transplants-of-neurotrophin-producing-autologous-fibroblasts-promote-recovery-of-treadmill-stepping-in-the-acute-sub-chronic-and-chronic-spinal-cat
#8
Alexander James Krupka, Itzhak Fischer, Michel A Lemay
Adult cats show limited spontaneous locomotor capabilities following spinal transection, but recover treadmill stepping with body-weight supported training. Delivery of neurotrophic factors such as brain-derived neurotrophic factor (BDNF) and neurotrophic factor 3 (NT-3) can substitute for body-weight supported training and promotes a similar recovery in a shorter period of time. Autologous cell grafts would negate the need for the immunosuppressive agents currently used with most grafts, but have not shown functional benefits in incomplete spinal cord injury models and have never been tested in complete transection or chronic injury models...
November 9, 2016: Journal of Neurotrauma
https://www.readbyqxmd.com/read/27817750/l-tetrahydropalmatine-reduces-nicotine-self-administration-and-reinstatement-in-rats
#9
Shamia L Faison, Charles W Schindler, Steven R Goldberg, Jia Bei Wang
BACKGROUND: The negative consequences of nicotine use are well known and documented, however, abstaining from nicotine use and achieving abstinence poses a major challenge for the majority of nicotine users trying to quit. l-Tetrahydropalmatine (l-THP), a compound extracted from the Chinese herb Corydalis, displayed utility in the treatment of cocaine and heroin addiction via reduction of drug-intake and relapse. The present study examined the effects of l-THP on abuse-related effects of nicotine...
November 7, 2016: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/27801408/-the-regulation-of-balance-in-the-children-presenting-with-severe-cerebral-palsy-following-the-treatment-with-the-use-of-the-locomotor-training-in-combination-with-the-electrical-stimulation-of-leg-muscles-and-spinal-cord
#10
I E Nikityuk, T R Moshonkina, Yu P Gerasimenko, S V Vissarionov, A G Baindurashvili
: One of the cerebral palsy (CP) symptoms is the impairment of the ability to maintain upright standing. The objective of the present study was to investigate the effect of the locomotor training combined with electrical transcutaneous spinal cord stimulation (TSCS) and functional electrical stimulation (FES) of the muscles to facilitate the restoration of the vertical posture function in the children presenting with cerebral palsy. PATIENTS AND METHODS: This article is designed to present the results of the study that included 19 patients at the age from 6 to 12 years...
2016: Voprosy Kurortologii, Fizioterapii, i Lechebnoĭ Fizicheskoĭ Kultury
https://www.readbyqxmd.com/read/27762657/rehabilitation-strategies-after-spinal-cord-injury-inquiry-into-the-mechanisms-of-success-and-failure
#11
Marie-Pascale Côté, Marion Murray, Michel A Lemay
Body-weight supported locomotor training (BWST) promotes recovery of load-bearing stepping in lower mammals, but its efficacy in individuals with a spinal cord injury (SCI) is limited and highly dependent on injury severity. While animal models with complete spinal transections recover stepping with step-training, motor complete SCI individuals do not, despite similarly intensive training. In this review, we examine the significant differences between humans and animal models that may explain this discrepancy in the results obtained with BWST...
November 21, 2016: Journal of Neurotrauma
https://www.readbyqxmd.com/read/27762171/decrease-of-spasticity-after-hybrid-assistive-limb-%C3%A2-training-for-a-patient-with-c4-quadriplegia-due-to-chronic-sci
#12
Akira Ikumi, Shigeki Kubota, Yukiyo Shimizu, Hideki Kadone, Aiki Marushima, Tomoyuki Ueno, Hiroaki Kawamoto, Yasushi Hada, Akira Matsumura, Yoshiyuki Sankai, Masashi Yamazaki
CONTEXT: Recently, locomotor training with robotic assistance has been found effective in treating spinal cord injury (SCI). Our case report examined locomotor training using the robotic suit hybrid assistive limb (HAL) in a patient with complete C4 quadriplegia due to chronic SCI. This is the first report examining HAL in complete C4 quadriplegia. FINDINGS: The patient was a 19-year-old man who dislocated C3/4 during judo 4 years previously. Following the injury, he underwent C3/4 posterior spinal fusion but remained paralyzed despite rehabilitation...
October 20, 2016: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/27750478/effectiveness-of-automated-locomotor-training-in-patients-with-acute-incomplete-spinal-cord-injury-a-randomized-controlled-multicenter-trial
#13
Markus Wirz, Orpheus Mach, Doris Maier, Jesus Benito-Penalva, Julian Taylor, Ana Esclarin, Volker Dietz
The aim of this study was to evaluate whether the effect of longer training times (50 instead of 25 min per day) using a robotic device results in a better outcome of walking ability of subjects with a subacute motor complete (American Spinal Injury Association Impairment Scale [AIS]-B) and incomplete (AIS-C) spinal cord injury. Twenty-one patients were enrolled in the study, whereof 18 completed, on average, 34 trainings in 8 weeks. Longer training times resulted in better locomotor function. The second important result of the study is that a beneficial effect can be achieved by the application of a robotic device for prolonged training sessions without requiring more personal resources...
December 2, 2016: Journal of Neurotrauma
https://www.readbyqxmd.com/read/27748688/influence-of-skill-and-exercise-training-parameters-on-locomotor-recovery-during-stroke-rehabilitation
#14
T George Hornby, Jennifer L Moore, Linda Lovell, Elliot J Roth
PURPOSE OF REVIEW: Research findings from the fields of motor learning and exercise physiology suggest specific training parameters that can be manipulated during physical rehabilitation profoundly influence skilled task performance. This review details the rationale for some of these training variables and their application in selected intervention studies focused on improving walking function in patients poststroke. RECENT FINDINGS: Basic and applied studies have shown that the amount, intensity, and variability of specific task practice applied during rehabilitation interventions can affect recovery of walking poststroke...
December 2016: Current Opinion in Neurology
https://www.readbyqxmd.com/read/27736315/effect-of-locomotor-training-on-exhaustion-of-leg-muscle-activity-in-chronic-complete-spinal-cord-injury
#15
Miriam Schrafl-Altermatt, Volker Dietz, Marc Bolliger
The aim of this study was to evaluate the effect of a continuous locomotor training on leg muscle EMG exhaustion during assisted stepping movements in a patient with motor complete spinal cord injury (SCI). EMG exhaustion and loss of potentials starts to develop in non-trained patients usually around six months after injury. In the trained patient examined in this study exhaustion was also observed but occurred with a delay of several months. In contrast to a non-trained patient no more EMG exhaustion was observed in a very chronic stage...
October 13, 2016: Journal of Neurotrauma
https://www.readbyqxmd.com/read/27725215/additive-effect-of-harmane-and-muscimol-for-memory-consolidation-impairment-in-inhibitory-avoidance-task
#16
Mohammad Nasehi, Parastoo Morteza-Zadeh, Fatemeh Khakpai, Mohammad-Reza Zarrindast
In the current study, we examined the effect of bilateral intra-dorsal hippocampal (intra-CA1) microinjections of GABAA receptor agents on amnesia induced by a β-carboline alkaloid, harmane in mice. We used a single-trial step-down passive avoidance task to assess memory retention and then, open-field test to assess locomotor activity. The results indicated that post-training intra-CA1 injections of bicuculline - a GABAA receptor antagonist - had no significant effect, while muscimol (0.01 and 0.1μg/mouse) - a GABAA receptor agonist - impaired memory consolidation...
December 17, 2016: Neuroscience
https://www.readbyqxmd.com/read/27725171/psychotomimetic-effects-of-different-doses-of-mk-801-and-the-underlying-mechanisms-in-a-selective-memory-impairment-model
#17
Weiqing Liu, Dong Wang, Wenjuan Hong, Yi Yu, Jinsong Tang, Jicai Wang, Fang Liu, Xiufeng Xu, Liwen Tan, Xiaogang Chen
Although N-methyl-d-aspartate receptor antagonists-induced hypoglutamate rodent models are the most well-established models for preclinical studies of schizophrenia-related deficits, they also evoke a wide spectrum of psychotomimetic side effects. It is significant to increase the specificity of hypoglutamate rodent models. In this study, the recognition memory was evaluated in rats by object recognition test (ORT), sensorimotor gating was evaluated by prepulse inhibition of the startle reflex (PPI), and locomotor activity was measured using open field test...
October 7, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27720500/stimuli-associated-with-the-presence-or-absence-of-amphetamine-regulate-cytoskeletal-signaling-and-behavior
#18
Bryan F Singer, Nancy Bubula, Magdalena M Przybycien-Szymanska, Dongdong Li, Paul Vezina
Drug-paired stimuli rapidly enlarge dendritic spines in the nucleus accumbens (NAcc). While increases in spine size and shape are supported by rearrangement of the actin cytoskeleton and facilitate the synaptic expression of AMPA-type glutamate receptors, it remains unclear whether drug-related stimuli can influence signaling pathways known to regulate these changes in spine morphology. These pathways were studied in rats trained on a discrimination learning paradigm using subcellular fractionation and protein immunoblotting to isolate proteins within dendritic spine compartments in the NAcc shell...
October 6, 2016: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27717938/experience-of-using-hippotherapy-in-complex-effects-on-muscle-spirals-in-children-with-spastic-forms-of-cerebral-palsy
#19
Evhen Y Strashko, Аnna A Kapustianska, Lyudmyla E Bobyreva
Matters of physical and medical rehabilitation of children with organic lesions of the nervous system, in particular, with cerebral palsy, are actual in countries around the world. Hippotherapy is neurophysiologically oriented therapy using horses. Determine whether a combination of hippotherapy as a method of rehabilitation in the aftermath of outpatient comprehensive impact on MS on a stationary phase; Study of the effect of hippotherapy as securing and preparation method for learning new postures and movements in children with spastic cerebral palsy forms; The study of the possible optimization of psychophysical state, activation motivations of patients; Determination of the optimal timing of hippotherapy sessions, the number of procedures, the study of possible fatigue factor children...
2016: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/27702556/intermittent-hypoxia-and-locomotor-training-enhances-dynamic-but-not-standing-balance-in-incomplete-spinal-cord-injury-patients
#20
Angela Navarrete-Opazo A, Julio Alcayaga J, Oscar Sepúlveda, Gonzalo Varas
OBJECTIVE: To test the effect of combined intermittent hypoxia (IH) and body weight-supported treadmill training (BWSTT) on standing and dynamic balance in persons with incomplete spinal cord injury (iSCI). DESIGN: Randomized, triple-blind, placebo-controlled study. SETTING: "Instituto Teletón Santiago" and "Hospital Clínico Mutual de seguridad" in Santiago, Chile. PARTICIPANTS: Persons with ASIA C and D chronic iSCI (> 1 year post-injury) were randomly assigned to either IH plus BWSTT (n=18) or continued normoxia (Nx, placebo) plus BWSTT protocol (n=17)...
October 1, 2016: Archives of Physical Medicine and Rehabilitation
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