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https://www.readbyqxmd.com/read/29677663/haptic-based-perception-empathy-biofeedback-system-for-balance-rehabilitation-in-patients-with-chronic-stroke-concepts-and-initial-feasibility-study
#1
Kazuhiro Yasuda, Kenta Saichi, Naomi Kaibuki, Hiroaki Harashima, Hiroyasu Iwata
BACKGROUND: Most individuals have sensory disturbances post stroke, and these deficits contribute to post-stroke balance impairment. The haptic-based biofeedback (BF) system appears to be one of the promising tools for balance rehabilitation in patients with stroke, and the BF system can increase the objectivity of feedback and encouragement than that provided by a therapist. RESEARCH QUESTION: Studies in skill science indicated that feedback or encouragement from a coach or trainer enhances motor learning effect...
April 14, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29677566/association-between-cumberland-ankle-instability-tool-score-and-postural-stability-in-collegiate-soccer-players-with-and-without-functional-ankle-instability
#2
Shun Kunugi, Akihiko Masunari, Naruto Yoshida, Shumpei Miyakawa
OBJECTIVE: The purpose of this study was to investigate the association between Cumberland Ankle Instability Tool (CAIT) scores and postural stability during a diagonal landing, and to investigate whether postural stability is altered in collegiate soccer players with and without functional ankle instability (FAI). DESIGN: Cross-sectional study. SETTING: Laboratory. PARTICIPANTS: Ninety-one soccer players were classified into a FAI group (history of at least two ankle sprains and a CAIT-Japanese version score ≤25, n = 28), a copers group (history of one ankle sprain and a CAIT-Japanese version score ≥26, n = 32), or a control group (no history of ankle sprain, n = 31)...
March 23, 2018: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29677030/a-cadaveric-study-of-ultrasound-guided-maxillary-nerve-block-via-the-pterygopalatine-fossa-a-novel-technique-using-the-lateral-pterygoid-plate-approach
#3
Wirinaree Kampitak, Tanvaa Tansatit, Yasuyuki Shibata
BACKGROUND AND OBJECTIVES: This study aimed to describe and assess the accuracy and feasibility of a novel technique for ultrasound-guided maxillary nerve block using the lateral pterygoid plate (LPP) approach via the pterygopalatine fossa (PPF) in a soft cadaveric model. METHODS: Ten soft cadavers were studied. The curved array ultrasound transducer probe was applied over 1 side of the face of the cadavers in the open-mouth posture. It was placed transversely below the zygomatic arch for identifying the border of the maxillary tuberosity and the LPP...
April 19, 2018: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/29675037/age-related-differences-in-cortical-and-subcortical-activities-during-observation-and-motor-imagery-of-dynamic-postural-tasks-an-fmri-study
#4
A Mouthon, J Ruffieux, M Mouthon, H-M Hoogewoud, J-M Annoni, W Taube
Age-related changes in brain activation other than in the primary motor cortex are not well known with respect to dynamic balance control. Therefore, the current study aimed to explore age-related differences in the control of static and dynamic postural tasks using fMRI during mental simulation of balance tasks. For this purpose, 16 elderly (72 ± 5 years) and 16 young adults (27 ± 5 years) were asked to mentally simulate a static and a dynamic balance task by motor imagery (MI), action observation (AO), or the combination of AO and MI (AO + MI)...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29674286/longitudinal-changes-over-thirty-six-months-in-postural-control-dynamics-and-cognitive-function-in-people-with-parkinson-s-disease
#5
Annette Pantall, Silvia Del Din, Lynn Rochester
BACKGROUND: Postural instability is a common motor feature in people with Parkinson's disease (PD) together with non-motor features such as cognitive dysfunction. Management of postural instability is challenging as it is often resistant to dopaminergic therapy. Greater knowledge of postural control is essential to understand postural instability in PD. RESEARCH QUESTION: This study aimed to answer how postural control differs in people with PD compared to healthy older adults (HOA)...
April 13, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29673837/movements-of-older-adults-during-exergaming-interventions-that-are-associated-with-the-systems-framework-for-postural-control-a-systematic-review
#6
REVIEW
Robin Tahmosybayat, Katherine Baker, Alan Godfrey, Nick Caplan, Gill Barry
One in three older adults fall annually, in part due to impairments in the physiological systems that make up the postural control (PC) system. Exercise, particularly balance training, helps to prevent deterioration and even to improve outcomes in the PC system. Exergaming (exercise-gaming) is interactive computer gaming whereby an individual moves the body in response to onscreen cues in a playful format. Exergaming is an alternative method to standard practice for improving PC outcomes, which has been shown to reduce the risk of falling...
May 2018: Maturitas
https://www.readbyqxmd.com/read/29673566/apparent-motion-perception-in-lower-limb-amputees-with-phantom-sensations-obstacle-shunning-and-obstacle-tolerance
#7
Gianluca Saetta, Ilva Grond, Peter Brugger, Bigna Lenggenhager, Anthony J Tsay, Melita J Giummarra
Phantom limbs are the phenomenal persistence of postural and sensorimotor features of an amputated limb. Although immaterial, their characteristics can be modulated by the presence of physical matter. For instance, the phantom may disappear when its phenomenal space is invaded by objects ("obstacle shunning"). Alternatively, "obstacle tolerance" occurs when the phantom is not limited by the law of impenetrability and co-exists with physical objects. Here we examined the link between this under-investigated aspect of phantom limbs and apparent motion perception...
March 21, 2018: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/29673397/sex-differences-in-kinematic-adaptations-to-muscle-fatigue-induced-by-repetitive-upper-limb-movements
#8
Jason Bouffard, Chen Yang, Mickael Begon, Julie Côté
BACKGROUND: Muscle fatigue induced by repetitive movements contributes to the development of musculoskeletal disorders. Men and women respond differently to muscle fatigue during isometric single-joint efforts, but sex differences during dynamic multi-joint tasks have not been clearly identified. Moreover, most studies comparing men and women during fatigue development assessed endurance time. However, none evaluated sex differences in kinematic adaptations to fatigue during multi-joint dynamic tasks...
April 19, 2018: Biology of Sex Differences
https://www.readbyqxmd.com/read/29673069/short-term-memory-impairment-in-vestibular-patients-can-arise-independently-of-psychiatric-impairment-fatigue-and-sleeplessness
#9
Laura Smith, David Wilkinson, Mayur Bodani, Rowena Bicknell, S S Surenthiran
Vestibular dysfunction is associated with visual short-term memory impairment; however, it remains unclear if this impairment arises as a direct result of the vestibular dysfunction or is a consequence of comorbid changes in mood, affect, fatigue, and/or sleep. To this end, we assessed the concurrence and interdependence of these comorbidities in 101 individuals recruited from a tertiary balance clinic with a neuro-otological diagnosis. Over fifty per cent of the sample showed reduced visuospatial short-term memory, 60% and 37% exceeded cut-off on the Beck Anxiety and Depression Inventories, respectively, 70% exceeded cut-off on the Fatigue Severity Scale, 44% reported daytime sleepiness on the Epworth Sleepiness Scale, and 78% scored above cut-off on the Pittsburgh Sleep Quality Index...
April 19, 2018: Journal of Neuropsychology
https://www.readbyqxmd.com/read/29673013/postural-control-during-a-transition-task-in-haemophilic-children-adolescents-and-young-adults-with-haemophilic-ankle-arthropathy
#10
K Deschamps, F Staes, M Eerdekens, K Peerlinck, C Hermans, J Vandesande, S Lobet
BACKGROUND: The aim of this study was to determine whether young haemophilic boys with and without MRI-based signs of ankle arthropathy demonstrate reduced balance ability during a transition task with eyes open and eyes closed. METHODS: Thirty-four haemophilic bodies and 28 typically developing boys aged 6-20 years participated to this study. Structural integrity of the tarsal foot joints of all haemophilic boys was assessed with MRI. All participants performed a standard transition task from double-leg stance to single-leg stance with eyes open and eyes closed...
April 19, 2018: Haemophilia: the Official Journal of the World Federation of Hemophilia
https://www.readbyqxmd.com/read/29672558/the-effects-of-unexpected-mechanical-perturbations-during-treadmill-walking-on-spatiotemporal-gait-parameters-and-the-dynamic-stability-measures-by-which-to-quantify-postural-response
#11
Forough Madehkhaksar, Jochen Klenk, Kim Sczuka, Katharina Gordt, Itshak Melzer, Michael Schwenk
Most falls occur after a loss of balance following an unexpected perturbation such as a slip or a trip. Greater understanding of how humans control and maintain stability during perturbed walking may help to develop appropriate fall prevention programs. The aim of this study was to examine changes in spatiotemporal gait and stability parameters in response to sudden mechanical perturbations in medio-lateral (ML) and anterior-posterior (AP) direction during treadmill walking. Moreover, we aimed to evaluate which parameters are most representative to quantify postural recovery responses...
2018: PloS One
https://www.readbyqxmd.com/read/29671032/sitting-versus-standing-makes-a-difference-in-musculoskeletal-discomfort-and-postural-load-for-surgeons-performing-vaginal-surgery
#12
Ruchira Singh, Ladin A Yurteri-Kaplan, Melissa M Morrow, Amy L Weaver, Michaela E McGree, Xinhui Zhu, Victor L Paquet, John B Gebhart, Susan Hallbeck
INTRODUCTION AND HYPOTHESIS: We compared musculoskeletal discomfort and postural load among surgeons in sitting and standing positions during vaginal surgery. MATERIALS AND METHODS: Assessment of discomfort and posture of the primary surgeons in both positions was performed at two institutions. The primary outcome was an increase in body discomfort score after surgery as determined from subjective responses using validated tools. The secondary outcome was the percentage of time spent in awkward body postures measured objectively and stratified into awkward postures for neck, trunk, and bilateral shoulder angles...
April 18, 2018: International Urogynecology Journal
https://www.readbyqxmd.com/read/29669028/the-grass-was-greener-repeated-evolution-of-specialized-morphologies-and-habitat-shifts-in-ghost-spiders-following-grassland-expansion-in-south-america
#13
F Sara Ceccarelli, Nicolás Mongiardino Koch, Eduardo M Soto, Mariana L Barone, Miquel A Arnedo, Martín J Ramírez
While grasslands, one of Earth's major biomes, are known for their close evolutionary ties with ungulate grazers, these habitats are also paramount to the origins and diversification of other animals. Within the primarily South American spider subfamily Amaurobioidinae (Anyphaenidae), several species are found living in the continent's grasslands, with some displaying putative morphological adaptations to dwelling unnoticed in the grass blades. Here, a dated molecular phylogeny provides the backbone for analyses revealing the ecological and morphological processes behind these spiders' grassland adaptations...
April 14, 2018: Systematic Biology
https://www.readbyqxmd.com/read/29668910/a-reactive-balance-rating-method-that-correlates-with-kinematics-after-trip-like-perturbations-on-a-treadmill-and-fall-risk-among-residents-of-older-adult-congregate-housing
#14
Michael L Madigan, Jessica Aviles, Leigh J Allin, Maury A Nussbaum, Neil B Alexander
Background: A growing number of studies are using modified treadmills to train reactive balance after trip-like perturbations that require multiple steps to recover balance. The goal of this study was thus to develop and validate a low-tech reactive balance rating method in the context of trip-like treadmill perturbations to facilitate the implementation of this training outside the research setting. Methods: Thirty-five residents of five senior congregate housing facilities participated in the study...
April 16, 2018: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/29668533/motor-learning-in-dystonia-distorted-feedback-results-in-distorted-motor-learning-and-information-seeking-compensatory-behaviour
#15
Edit Nagy
Motor learning is possible in dystonia, but distorted feedback results in distorted motor performance and information-seeking compensatory behavior, as observed in this case. With globus pallidus internal segment deep brain stimulation, the postural background of hand writing improved, but the learned left compensatory grip did not change.
April 17, 2018: International Journal of Rehabilitation Research. Revue Internationale de Recherches de Réadaptation
https://www.readbyqxmd.com/read/29668389/stepping-responses-to-treadmill-perturbations-vary-with-severity-of-motor-deficits-in-human-sci
#16
Virginia Way Tong Chu, T George Hornby, Brian D Schmit
In this study, we investigated the responses to tread perturbations during human stepping on a treadmill. Our approach was to test the effects of perturbations to a single leg using a split-belt treadmill in healthy participants and in participants with varying severity of spinal cord injury (SCI). We recruited 11 people with incomplete SCI and 5 noninjured participants. As participants walked on an instrumented treadmill, the belt on one side was stopped or accelerated briefly during mid to late stance. A majority of participants initiated an unnecessary swing when the treadmill was stopped in mid stance, although the likelihood of initiating a step was decreased in participants with more severe SCI...
April 18, 2018: Journal of Neurophysiology
https://www.readbyqxmd.com/read/29668388/neuromuscular-changes-of-the-aged-human-hamstrings
#17
Eric A Kirk, Kevin J Gilmore, Charles L Rice
Despite the life-long importance for posture and locomotion, neuromuscular properties of the hamstrings muscle have not been explored with adult ageing. The purpose was to assess and compare age-related effects on contractile function, spinal motor neuron output expressed as motor unit (MU) discharge rates in the hamstrings of 11 young (26 {plus minus} 4 y) and 10 old (80 {plus minus} 5 y) men. Maximal voluntary isometric contractions (MVC), stimulated contractile properties, surface and intramuscular electromyography (EMG) from sub-maximal to MVC were recorded in the biceps femoris (BF) and semimembranosus-semitendinosus (SS) muscles...
April 18, 2018: Journal of Neurophysiology
https://www.readbyqxmd.com/read/29668375/evaluation-of-pelvis-postural-systems-in-spinal-cord-injury-patients-outcome-research
#18
Serena Dattoli, Mariele Colucci, Maria Grazia Soave, Rita De Santis, Leandro Segaletti, Claudia Corsi, Marco Tofani, Donatella Valente, Giovanni Galeoto
OBJECTIVES: Compare three commercially available postural systems to determine the best for treatment of patients suffering from spinal cord injury lesion below the cervical spine. DESIGN: Outcome Research. SETTING: Ambulatory. PARTICIPANTS: Thirteen patients were recruited for this study between March 2016 and July 2016 from the Occupational Therapy clinic of "Policlinico Umberto I" hospital in Rome and Occupational Therapy of "CPO" hospital in Ostia...
April 18, 2018: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/29668299/effects-of-using-insoles-of-different-thicknesses-in-older-adults-which-thickness-has-the-best-impact-on-postural-stability-and-risk-of-falling
#19
Öznur Büyükturan, Serdar Demirci, Buket Büyükturan, Yavuz Yakut
BACKGROUND: Postural stability (PS) problems arise as an individual grows older, and as a result, risk of falling (RoF) increases in older adults. The purpose of this study was to examine the effects of insoles of various thicknesses on PS and RoF in older adults. METHODS: Fifty-six individuals participated in the study. PS and RoF were evaluated both statically and dynamically using Biodex Balance System. PS and RoF assessments were perfomed under five different conditions: 1) barefoot, 2) only shoes, 3) with 5 mm insole, 4) with 10 mm insole, 5) with 15 mm insole...
April 18, 2018: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/29667844/lower-extremity-biomechanics-during-a-drop-vertical-jump-in-participants-with-or-without-chronic-ankle-instability
#20
C Collin Herb, Kaitlyn Grossman, Mark A Feger, Luke Donovan, Jay Hertel
CONTEXT:   Chronic ankle instability (CAI) is a condition characterized by range-of-motion, neuromuscular, and postural-control deficits and subjective disability, reinjury, and posttraumatic osteoarthritis. Differences have been reported in kinematics, kinetics, surface electromyography (EMG), and ground reaction forces during functional tasks performed by those with CAI. These measures are often collected independently, and the research on collecting measures simultaneously during a movement task is limited...
April 18, 2018: Journal of Athletic Training
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