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Proprioception

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https://www.readbyqxmd.com/read/28720803/contingent-sounds-change-the-mental-representation-of-one-s-finger-length
#1
Ana Tajadura-Jiménez, Maria Vakali, Merle T Fairhurst, Alisa Mandrigin, Nadia Bianchi-Berthouze, Ophelia Deroy
Mental body-representations are highly plastic and can be modified after brief exposure to unexpected sensory feedback. While the role of vision, touch and proprioception in shaping body-representations has been highlighted by many studies, the auditory influences on mental body-representations remain poorly understood. Changes in body-representations by the manipulation of natural sounds produced when one's body impacts on surfaces have recently been evidenced. But will these changes also occur with non-naturalistic sounds, which provide no information about the impact produced by or on the body? Drawing on the well-documented capacity of dynamic changes in pitch to elicit impressions of motion along the vertical plane and of changes in object size, we asked participants to pull on their right index fingertip with their left hand while they were presented with brief sounds of rising, falling or constant pitches, and in the absence of visual information of their hands...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28718273/3d-quantitative-evaluation-of-spine-proprioceptive-perception-motor-control-through-instinctive-self-correction-manoeuvre-in-healthy-young-subjects-posture-an-observational-study
#2
Moreno D'Amico, Edyta Kinel, Piero Roncoletta
BACKGROUND: Conservative treatment in spine deformities and spine related disorders is mainly based on proper individual proprioceptive and motor control training. For these reasons, conservative treatment involves the stimulation of individual capability of perceiving/reducing deformities, blocks and/or improper spine posture by voluntary control. The literature describes that habitually adopted relaxed postures often exacerbate low back pain. Typically, youths can be referred to therapeutic programs aimed at improving the quality of body posture along with fostering the awareness of the importance of correct posture...
July 18, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28716590/lumbar-muscle-inflammation-alters-spinally-mediated-locomotor-recovery-induced-by-training-in-a-mouse-model-of-complete-spinal-cord-injury
#3
Renaud Jeffrey-Gauthier, Mathieu Piché, Hugues Leblond
Locomotor networks after spinal cord injury (SCI) are shaped by training-activated proprioceptive and cutaneous inputs. Nociception from injured tissues may alter these changes but has largely been overlooked. The objective of the present study was to ascertain whether lumbar muscle inflammation hinders locomotion recovery in a mouse model of complete SCI. Lower limb kinematics during treadmill training was assessed before and after complete SCI at T8 (2, 7, 14, 21 and 28 days post-injury). Locomotor recovery was compared in 4 groups of CD1 mice: control spinal mice; spinal mice with daily locomotor training; spinal mice with lumbar muscle inflammation (Complete Freund's Adjuvant (CFA) injection); and spinal mice with locomotor training and CFA...
July 14, 2017: Neuroscience
https://www.readbyqxmd.com/read/28709679/the-all-on-4-modified-polyetheretherketone-treatment-approach-a-clinical-report
#4
Panagiotis Zoidis
A modified polyetheretherketone (PEEK) implant framework material in combination with prefabricated high-impact poly(methyl methacrylate) (PMMA) veneers was used as an alternative material for the fabrication of a complete maxillary arch implant-supported fixed restoration. The elastic performance of the PEEK framework (elastic modulus of 4 GPa) combined with PMMA veneers may reduce the occlusal forces, protecting the implant-supported restoration and the opposing dentition, especially in all-on-4 treatments, where lack of proprioception and wide interimplant distance are present...
July 11, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28708822/an-ancient-neurotrophin-receptor-code-a-single-runx-cbf%C3%AE-complex-determines-somatosensory-neuron-fate-specification-in-zebrafish
#5
Philia Gau, Andrew Curtright, Logan Condon, David W Raible, Ajay Dhaka
In terrestrial vertebrates such as birds and mammals, neurotrophin receptor expression is considered fundamental for the specification of distinct somatosensory neuron types where Traka, TrkB and TrkC specify nociceptors, mechanoceptors and proprioceptors/mechanoceptors, respectively. In turn, Runx transcription factors promote neuronal fate specification by regulating neurotrophin receptor and sensory receptor expression where Runx1 mediates TrkA+ nociceptor diversification while Runx3 promotes a TrkC+ proprioceptive/mechanoceptive fate...
July 14, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28708701/self-reported-concussion-history-and-sensorimotor-tests-predict-head-neck-injuries
#6
Julie A Hides, Melinda M Franettovich Smith, M Dilani Mendis, Julia Treleaven, Andrew H Rotstein, Christopher T Sexton, Nancy Low Choy, Paul McCrory
PURPOSE: Sports related concussion (SRC) is a risk for players involved in high impact, collision sports. A history of SRC is a risk factor for future concussions, but the mechanisms underlying this are unknown. Despite evidence that most visible signs and symptoms associated with sports concussion resolve within 7-10 days, it has been proposed that subclinical loss of neuromuscular control and impaired motor functioning may persist and be associated with further injury. Alternatively, indicators of poor sensorimotor performance could be independent risk factors...
July 13, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28706842/single-bundle-augmentation-for-a-partial-tear-of-the-anterior-cruciate-ligament
#7
Allison J Rao, Gregory L Cvetanovich, William A Zuke, Beatrice Go, Brian Forsythe
Given the prevalence of anterior cruciate ligament (ACL) tears in young athletes, it is essential to elucidate and illustrate surgical interventions that return the most favorable outcomes. Although most ACL injuries are full-thickness tears, occasionally either the anteromedial (AM) or posterolateral (PL) bundle is torn in isolation, allowing consideration of an ACL reconstruction or augmentation. Because the ACL-deficient knee has been shown to exhibit less proprioceptive feedback, the preservation of the intact bundle may offer an inherent component of stability...
June 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28706799/all-arthroscopic-remnant-preserving-technique-to-reconstruct-the-lateral-ankle-ligament-complex
#8
Jianchao Gui, Yiqiu Jiang, Yang Li, Tianqi Tao, Wang Li, Kaibing Zhang, Wangxiang Yao, Peilong Dong
Arthroscopic lateral ankle ligament reconstruction has been recently advocated. But this technique has not been popularized because of the technical complexity and potential iatrogenic injury. Because the talocalcaneal and calcaneofibular ligaments are extra-articular structures, how to efficiently view and address them is a difficult task. Limited dissection outside the capsule to form a working space is required, but aggressive dissection is harmful for tissue healing although it is helpful for visualization and instrumentation...
June 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28705637/-do-children-with-attention-deficit-and-hyperactivity-disorder-adhd-have-a-diferent-gait-pattern-relationship-between-idiopathic-toe-walking-and-adhd
#9
Víctor Soto Insuga, Beatriz Moreno Vinués, Rebeca Losada Del Pozo, María Rodrigo Moreno, Marta Martínez González, Raquel Cutillas Ruiz, Carmen Mateos Carmen
INTRODUCTION: Idiopathic toe-walking (ITW) is described as a gait pattern with no contact between the heels and the ground in children older than 3years. The diagnosis is clinical, making it necessary to rule out other neurological and orthopaedic conditions. A relationship between ITW and vestibular dysfunction and/or proprioceptive sensibility has been proposed. Children with neurodevelopmental disorders (autism, language and cognitive disorders) often have ITW. OBJECTIVES: To determine the frequency of ITW in children with attention deficit disorder and hyperactivity (ADHD)...
July 10, 2017: Anales de Pediatría: Publicación Oficial de la Asociación Española de Pediatría (A.E.P.)
https://www.readbyqxmd.com/read/28704216/low-back-pain-patients-learn-to-adapt-motor-behavior-with-adverse-secondary-consequences
#10
Jaap H van Dieën, Herta Flor, Paul W Hodges
We hypothesize that changes in motor behavior in individuals with low-back pain are adaptations aimed at minimizing the real or perceived risk of further pain. Through reinforcement learning, pain and subsequent adaptions result in less dynamic motor behavior, leading to increased loading and impoverished sensory feedback, which contributes to cortical reorganization and proprioceptive impairments that reduce the ability to control lumbar movement in a robust manner.
July 12, 2017: Exercise and Sport Sciences Reviews
https://www.readbyqxmd.com/read/28702846/characterization-of-the-encoding-properties-of-intraspinal-mechanosensory-neurons-in-the-lamprey
#11
Nicole Massarelli, Allan L Yau, Kathleen A Hoffman, Tim Kiemel, Eric D Tytell
Proprioceptive sensory inputs are an integral part of the closed-loop system of locomotion. In the lamprey, a model organism for vertebrate locomotion, such sensory inputs come from intraspinal mechanosensory cells called "edge cells". These edge cells synapse directly onto interneurons in the spinal central pattern generator (CPG) circuit and allow the CPG to adjust the motor output according to how the body is bending. However, the encoding properties of the edge cells have never been fully characterized...
July 12, 2017: Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology
https://www.readbyqxmd.com/read/28702446/comparison-of-abdominal-muscle-activity-during-abdominal-drawing-in-maneuver-combined-with-irradiation-variations
#12
Young-In Hwang, Du-Jin Park
Many experts have used an indirect method for enhancing strength and performance of muscles in clinical practice. The indirect method, which called an irradiation is a basic procedure of proprioceptive neuromuscular facilitation, there is little research related the effects of irradiation. This study investigated abdominal muscle activity during abdominal drawing-in maneuver (ADIM) combined with irradiation variations. The study recruited 42 healthy, young adults who were divided randomly into three groups according to which intervention they received...
June 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/28701941/rapid-alleviation-of-parkinson-s-disease-symptoms-via-electrostimulation-of-intrinsic-auricular-muscle-zones
#13
Yusuf O Cakmak, Hülya Apaydin, Güneş Kiziltan, Ayşegül Gündüz, Burak Ozsoy, Selim Olcer, Hakan Urey, Ozgur O Cakmak, Yasemin G Ozdemir, Sibel Ertan
Background: Deep brain stimulation of the subthalamic nucleus (STN-DBS) and the pedunculopontine nucleus (PPN) significantly improve cardinal motor symptoms and postural instability and gait difficulty, respectively, in Parkinson's disease (PD). Objective and Hypothesis: Intrinsic auricular muscle zones (IAMZs) allow the potential to simultaneously stimulate the C2 spinal nerve, the trigeminal nerve, the facial nerve, and sympathetic and parasympathetic nerves in addition to providing muscle feedback and control areas including the STN, the PPN and mesencephalic locomotor regions...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28698615/influence-of-the-body-schema-on-multisensory-integration-evidence-from-the-mirror-box-illusion
#14
Yuqi Liu, Jared Medina
When placing one hand on each side of a mirror and making synchronous bimanual movements, the mirror-reflected hand feels like one's own hand that is hidden behind the mirror. We developed a novel mirror box illusion to investigate whether motoric, but not spatial, visuomotor congruence is sufficient for inducing multisensory integration, and importantly, if biomechanical constraints encoded in the body schema influence multisensory integration. Participants placed their hands in a mirror box in opposite postures (palm up, palm down), creating a conflict between visual and proprioceptive feedback for the hand behind the mirror...
July 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28696340/brain-actuated-gait-trainer-with-visual-and-proprioceptive-feedback
#15
Dong Liu, Weihai Chen, Kyuhwa Lee, Ricardo Chavarriaga, Mohamed Bouri, Zhongcai Pei, Jose Del R Millan
OBJECTIVE: Brain-machine interfaces (BMIs) have been proposed in closed-loop applications for neuromodulation and neurorehabilitation. This study describes the impact of different feedback modalities on the performance of an EEG-based BMI that decodes motor imagery (MI) of leg flexion and extension. APPROACH: We executed experiments in a lower-limb gait trainer (the legoPress) where nine able-bodied subjects participated in three consecutive sessions based on a crossover design...
July 11, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28691694/context-dependent-adaptation-improves-robustness-of-myoelectric-control-for-upper-limb-prostheses
#16
Gauravkumar K Patel, Janne Mathias Hahne, Claudio Castellini, Dario Farina, Strahinja Dosen
OBJECTIVE: Dexterous upper-limb prostheses are available today to restore grasping, but an effective and reliable feed-forward control is still missing. The aim of this work was to improve the robustness and reliability of myoelectric control by using context information from sensors embedded within the prosthesis. APPROACH: We developed a context-driven myoelectric control scheme (cxMYO) that incorporates the inference of context information from proprioception (inertial measurement unit) and exteroception (force and grip aperture) sensors to modulate the outputs of myoelectric control...
July 10, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28686375/-vestibular-and-visual-stimulation-simultaneous-perception-or-not
#17
Jelena Todic, Jean-Philippe Guyot, Angelica Perez Fornos, Samuel Cavuscens, Maurizio Ranieri, Daniel Merfeld, Richard Lewis, Nils Guinand
The human brain is able to consider that two sensory stimuli are synchronous while they activate the cortex with some delay because they follow different neurological pathways. This process is only possible if the time interval between the two stimuli does not exceed a certain limit, called "Temporal Binding Window" (TBW). Studies of this parameter, involving the vestibular perception, are difficult because subjects must be moved, which generates parasitic proprioceptive information. By cons, in patients equipped with a vestibular implant, it is possible to generate a vestibular perception selectively by electrical stimulation of the vestibular nerve...
October 5, 2016: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28678886/gaze-centered-coding-of-proprioceptive-reach-targets-after-effector-movement-testing-the-impact-of-online-information-time-of-movement-and-target-distance
#18
Stefanie Mueller, Katja Fiehler
In previous research, we demonstrated that spatial coding of proprioceptive reach targets depends on the presence of an effector movement (Mueller & Fiehler, Neuropsychologia, 2014, 2016). In these studies, participants were asked to reach in darkness with their right hand to a proprioceptive target (tactile stimulation on the finger tip) while their gaze was varied. They either moved their left, stimulated hand towards a target location or kept it stationary at this location where they received a touch on the fingertip to which they reached with their right hand...
2017: PloS One
https://www.readbyqxmd.com/read/28676758/loss-of-peripheral-sensory-function-explains-much-of-the-increase-in-postural-sway-in-healthy-older-adults
#19
Eric Anson, Robin T Bigelow, Bonnielin Swenor, Nandini Deshpande, Stephanie Studenski, John J Jeka, Yuri Agrawal
Postural sway increases with age and peripheral sensory disease. Whether, peripheral sensory function is related to postural sway independent of age in healthy adults is unclear. Here, we investigated the relationship between tests of visual function (VISFIELD), vestibular function (CANAL or OTOLITH), proprioceptive function (PROP), and age, with center of mass sway area (COM) measured with eyes open then closed on firm and then a foam surface. A cross-sectional sample of 366 community dwelling healthy adults from the Baltimore Longitudinal Study of Aging was tested...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28673759/biomechanical-and-functional-efficacy-of-knee-sleeves-a-literature-review
#20
REVIEW
Nahdatul Aishah Mohd Sharif, Siew-Li Goh, Juliana Usman, Wan Kamarul Zaman Wan Safwani
BACKGROUND: Knee sleeves are widely used for the symptomatic relief and subjective improvements of knee problems. To date, however, their biomechanical effects have not been well understood. OBJECTIVE: To determine whether knee sleeves can significantly improve the biomechanical variables for knee problems. METHOD: Systematic literature search was conducted on four online databases - PubMed, Web of Science, ScienceDirect and Springer Link - to find peer-reviewed and relevant scientific papers on knee sleeves published from January 2005 to January 2015...
May 6, 2017: Physical Therapy in Sport
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