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https://www.readbyqxmd.com/read/27927022/explicit-motor-sequence-learning-with-the-paretic-arm-after-stroke
#1
Melanie K Fleming, Di J Newham, John C Rothwell
PURPOSE: Motor sequence learning is important for stroke recovery, but experimental tasks require dexterous movements, which are impossible for people with upper limb impairment. This makes it difficult to draw conclusions about the impact of stroke on learning motor sequences. We aimed to test a paradigm requiring gross arm movements to determine whether stroke survivors with upper limb impairment were capable of learning a movement sequence as effectively as age-matched controls. MATERIALS AND METHODS: In this case-control study, 12 stroke survivors (10-138 months post-stroke, mean age 64 years) attempted the task once using their affected arm...
December 7, 2016: Disability and Rehabilitation
https://www.readbyqxmd.com/read/27926913/effect-of-rheumatoid-arthritis-on-strength-dexterity-coordination-and-functional-status-of-the-hand-the-relationship-with-magnetic-resonance-imaging-findings
#2
Asiye Mukaddes Erol, Esma Ceceli, Selma Uysal Ramadan, Pınar Borman
OBJECTIVE: To evaluate the effect of rheumatoid arthritis (RA) on strength, dexterity, coordination and functional status of the hand and to determine the relation with magnetic resonance imaging (MRI) findings. MATERIALS AND METHODS: Thirty eight patients with RA and thirty three controls were included in the study. There were five drop-outs in RA group. Pain was assessed by visual analog scale. Painful and swollen joints of the dominant hand were recorded. Hand deformities of the patients were noted...
November 23, 2016: Acta Reumatológica Portuguesa
https://www.readbyqxmd.com/read/27925639/outcomes-following-arthroscopic-repair-of-posterior-labral-tears-in-patients-older-than-35-years
#3
Dexter K Bateman, Eric M Black, Mark D Lazarus, Joseph A Abboud
Although the results of arthroscopic management of posterior labral pathology in young athletes have been reported extensively in the literature, the clinical outcomes in older patients are unknown. This retrospective review included patients older than 35 years who underwent arthroscopic posterior labral repair. Functional outcome scores were collected, and subgroup analyses were performed to evaluate the impact of patient-specific factors. Forty-three patients met the inclusion criteria; average follow-up was 36...
December 7, 2016: Orthopedics
https://www.readbyqxmd.com/read/27919251/a-randomised-controlled-trial-of-sensory-awareness-training-and-additional-motor-practice-for-learning-scalpel-skills-in-podiatry-students
#4
Ryan S Causby, Michelle N McDonnell, Lloyd Reed, Susan L Hillier
BACKGROUND: The process of using a scalpel, like all other motor activities, is dependent upon the successful integration of afferent (sensory), cognitive and efferent (motor) processes. During learning of these skills, even if motor practice is carefully monitored there is still an inherent risk involved. It is also possible that this strategy could reinforce high levels of anxiety experienced by the student and affect student self-efficacy, causing detrimental effects on motor learning...
December 5, 2016: BMC Medical Education
https://www.readbyqxmd.com/read/27917570/handwriting-difficulties-of-children-with-charcot-marie-tooth-disease-type-1a
#5
Daniel Kunovsky, Reinie Cordier, Paula Bray, Joshua Burns
Hand weakness and impaired manual dexterity have been reported in children with Charcot-Marie-Tooth disease type 1A (CMT1A). This early onset of upper limb involvement might explain frequent clinical referrals for assessment and treatment of impaired handwriting performance. The aim of this study was to examine the impact of CMT1A on handwriting speed and legibility, and identify demographic, anthropometric and physical measures that might relate to handwriting performance. Handwriting speed (Handwriting Speed Test), handwriting legibility (Evaluation Tool of Children's Handwriting-Cursive) and hand strength (hand-held dynamometry of tip pinch, lateral pinch and grip) were assessed in 30 children with CMT1A (aged 8-17 years) and 30 age- and sex-matched controls...
December 5, 2016: Journal of the Peripheral Nervous System: JPNS
https://www.readbyqxmd.com/read/27917149/wavelet-packet-feature-assessment-for-high-density-myoelectric-pattern-recognition-and-channel-selection-toward-stroke-rehabilitation
#6
Dongqing Wang, Xu Zhang, Xiaoping Gao, Xiang Chen, Ping Zhou
This study presents wavelet packet feature assessment of neural control information in paretic upper limb muscles of stroke survivors for myoelectric pattern recognition, taking advantage of high-resolution time-frequency representations of surface electromyogram (EMG) signals. On this basis, a novel channel selection method was developed by combining the Fisher's class separability index and the sequential feedforward selection analyses, in order to determine a small number of appropriate EMG channels from original high-density EMG electrode array...
2016: Frontiers in Neurology
https://www.readbyqxmd.com/read/27909406/assessment-of-a-wearable-force-and-electromyography-device-and-comparison-of-the-related-signals-for-myocontrol
#7
Mathilde Connan, Eduardo Ruiz Ramírez, Bernhard Vodermayer, Claudio Castellini
In the frame of assistive robotics, multi-finger prosthetic hand/wrists have recently appeared, offering an increasing level of dexterity; however, in practice their control is limited to a few hand grips and still unreliable, with the effect that pattern recognition has not yet appeared in the clinical environment. According to the scientific community, one of the keys to improve the situation is multi-modal sensing, i.e., using diverse sensor modalities to interpret the subject's intent and improve the reliability and safety of the control system in daily life activities...
2016: Frontiers in Neurorobotics
https://www.readbyqxmd.com/read/27894677/factors-affecting-the-results-of-the-functional-dexterity-test
#8
Füsun Şahin, Nilgün Şimşir Atalay, Nuray Akkaya, Sibel Aksoy
STUDY DESIGN: Cross-sectional study. PURPOSE OF THE STUDY: The purpose of this study was to identify which demographic and anthropometric features affect performance (time) on the functional dexterity test (FDT). METHODS: One hundred fifty-two healthy subjects between the ages of 20 and 80 years were included in this cross-sectional study. Demographic characteristics (age, gender, height, weight, and dominant hand) and anthropometric (the girths of the first 3 fingers) variables were recorded, and the FDT (net time and total score) was performed...
November 25, 2016: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/27888578/clinical-evaluation-of-a-radio-protective-cream-for-the-hands-of-the-pediatric-interventional-cardiologist
#9
Saradha Subramanian, B Rush Waller, Natasha Winders, Lindsey E Bird, Vijaykumar Agrawal, David Zurakowski, Andrew Kuhls-Gilcrist, Ashok Khandkar, Shyam K Sathanandam
OBJECTIVES: The aim of this study was to evaluate the effectiveness of UltraBLOX™ radiation attenuating hand cream during lengthy cardiac catheterization procedures in children. BACKGROUND: The hands of interventional cardiologists receive high doses of radiation due to their proximity to the X-ray beam. Radiation attenuating gloves have about a 26% attenuation rate, but reduce dexterity and tactile sensation. The UltraBLOX™ cream is a new FDA-approved X-ray attenuating cream that can be applied to the operator's hands for radio-protection...
November 26, 2016: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/27886079/cerebellar-intermittent-theta-burst-stimulation-and-motor-control-training-in-individuals-with-cervical-dystonia
#10
Lynley V Bradnam, Michelle N McDonnell, Michael C Ridding
BACKGROUND: There is emerging evidence that cervical dystonia is a neural network disorder with the cerebellum as a key node. The cerebellum may provide a target for neuromodulation as a therapeutic intervention in cervical dystonia. OBJECTIVE: This study aimed to assess effects of intermittent theta-burst stimulation of the cerebellum on dystonia symptoms, quality of life, hand motor dexterity and cortical neurophysiology using transcranial magnetic stimulation...
November 23, 2016: Brain Sciences
https://www.readbyqxmd.com/read/27879960/effectiveness-of-music-based-interventions-on-motricity-or-cognitive-functioning-in-neurological-populations-a-systematic-review
#11
Lousin Moumdjian, Teppo Sarkamo, Carmela Leone, Marc Leman, Peter Feys
INTRODUCTION: Motor and cognitive symptoms are frequent in persons with neurological disorders and often require extensive long-term rehabilitation. Recently, a variety of musicbased interventions have been introduced into neurological rehabilitation as training tools. AIM: This review aims to a) describe and define music-based intervention modalities and content which are applied in experimental studies, and b) describe the effects of these interventions on motor and/or cognitive symptoms in the neurological population...
November 23, 2016: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27879592/reinnervated-split-muscle-technique-for-creating-additional-myoelectric-sites-in-an-animal-model
#12
Maria Florencia Deslivia, Hyun-Joo Lee, Rizki Fajar Zulkarnain, Bin Zhu, Arnold Adikrishna, In-Ho Jeon, Keehoon Kim
BACKGROUND: This study proposes a novel reinnervated split-muscle operation to create additional myoelectric sites as sources of command signals of myoelectric prostheses for enhanced dexterous hand-to-wrist motions. The aim of this study was to investigate the postprocedure electromyographic properties of the muscles as distinct myoelectric sites in a rat model. METHODS: The reinnervated split-muscle group (n = 6) had the gastrocnemius muscle separated along its longitudinal axis and nerves transferred to each new muscle (peroneal nerve to lateral muscle head and tibial to medial one); the non-split-muscle group (n = 6) only had nerve transfers with its muscle intact...
December 2016: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27864822/caregiver-directed-home-based-intensive-bimanual-training-in-young-children-with-unilateral-spastic-cerebral-palsy-a-randomized-trial
#13
Claudio L Ferre, Marina Brandão, Bhavini Surana, Ashley P Dew, Noelle G Moreau, Andrew M Gordon
AIM: To examine the efficacy of caregiver-directed, home-based intensive bimanual training in children with unilateral spastic cerebral palsy (USCP) using a randomized control trial. METHOD: Twenty-four children (ages 2y 6mo-10y 1mo; 10 males, 14 females) performed home-based activities directed by a caregiver for 2 hours per day, 5 days per week, for 9 weeks (total=90h). Cohorts of children were age-matched into groups and randomized to receive home-based hand-arm bimanual intensive therapy (H-HABIT; n=12) or lower-limb functional intensive training (LIFT-control; n=12)...
November 19, 2016: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/27863735/validity-and-reliability-of-the-functional-dexterity-test-in-children
#14
Camden M Tissue, Paul F Velleman, Caroline W Stegink-Jansen, Dorit Haenosh Aaron, Barbara G Winthrop, Gloria R Gogola
STUDY DESIGN: Clinical measurement study. INTRODUCTION: The Functional Dexterity Test (FDT) has not been validated in children. PURPOSE OF THE STUDY: To determine reliability and validity of the FDT in a pediatric population. METHODS: Intraclass Correlation Coefficients (ICCs) were used to calculate interrater and test-retest reliability in typically developing children. Pearson correlation coefficients were used to compare FDT speed with the Jebsen-Taylor Hand Function Test (JHFT) and with 2 activities of daily living tasks to establish validity in children with congenital hand differences...
November 15, 2016: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/27848087/the-initial-symptom-and-motor-progression-in-spinocerebellar-ataxias
#15
Lan Luo, Jie Wang, Raymond Y Lo, Karla P Figueroa, Stefan M Pulst, Pei-Hsin Kuo, Susan Perlman, George Wilmot, Christopher M Gomez, Jeremy D Schmahmann, Henry Paulson, Vikram G Shakkottai, Sarah H Ying, Theresa Zesiewicz, Khalaf Bushara, Michael Geschwind, Guangbin Xia, S H Subramony, Tetsuo Ashizawa, Sheng-Han Kuo
The aim of this study is to determine whether the initial symptom associates with motor progression in spinocerebellar ataxias (SCAs). SCAs are clinically heterogeneous and the initial presentation may represent different subtypes of SCA with different motor progression. We studied 317 participants with SCAs1, 2, 3, and 6 from the Clinical Research Consortium for SCAs (CRC-SCA) and repeatedly measured the severity of ataxia for 2 years. SCA patients were divided into gait-onset and non-gait-onset (speech, vision, and hand dexterity) groups based on the initial presentation...
November 15, 2016: Cerebellum
https://www.readbyqxmd.com/read/27811155/olfaction-is-related-to-motor-function-in-older-adults
#16
Qu Tian, Susan M Resnick, Stephanie A Studenski
BACKGROUND: Among older adults, both olfaction and motor function predict future cognitive decline and dementia, suggesting potential shared causal pathways. However, it is not known whether olfactory and motor function are independently related in late life. METHODS: We assessed cross-sectional associations of olfaction with motor and cognitive function, using concurrent data on olfactory function, mobility, balance, fine motor function, manual dexterity, and cognition in 163 Baltimore Longitudinal Study of Aging participants aged 60 and older without common neurological diseases (n = 114 with available cognitive data)...
November 3, 2016: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/27806698/perceived-ability-to-perform-daily-hand-activities-after-stroke-and-associated-factors-a-cross-sectional-study
#17
Elisabeth Ekstrand, Lars Rylander, Jan Lexell, Christina Brogårdh
BACKGROUND: Despite that disability of the upper extremity is common after stroke, there is limited knowledge how it influences self-perceived ability to perform daily hand activities. The aim of this study was to describe which daily hand activities that persons with mild to moderate impairments of the upper extremity after stroke perceive difficult to perform and to evaluate how several potential factors are associated with the self-perceived performance. METHODS: Seventy-five persons (72 % male) with mild to moderate impairments of the upper extremity after stroke (4 to 116 months) participated...
November 2, 2016: BMC Neurology
https://www.readbyqxmd.com/read/27789192/surgical-skill-assessment-using-motion-quality-and-smoothness
#18
Ahmad Ghasemloonia, Yaser Maddahi, Kourosh Zareinia, Sanju Lama, Joseph C Dort, Garnette R Sutherland
OBJECTIVES: This article presents a quantitative technique to assess motion quality and smoothness during the performance of micromanipulation tasks common to surgical maneuvers. The objective is to investigate the effectiveness of the jerk index, a derivative of acceleration with respect to time, as a kinetostatic measure for assessment of surgical performance. DESIGN: A surgical forceps was instrumented with a position tracker and accelerometer that allowed measurement of position and acceleration relative to tool motion...
October 24, 2016: Journal of Surgical Education
https://www.readbyqxmd.com/read/27738096/intracortical-microstimulation-of-human-somatosensory-cortex
#19
Sharlene N Flesher, Jennifer L Collinger, Stephen T Foldes, Jeffrey M Weiss, John E Downey, Elizabeth C Tyler-Kabara, Sliman J Bensmaia, Andrew B Schwartz, Michael L Boninger, Robert A Gaunt
Intracortical microstimulation of the somatosensory cortex offers the potential for creating a sensory neuroprosthesis to restore tactile sensation. Whereas animal studies have suggested that both cutaneous and proprioceptive percepts can be evoked using this approach, the perceptual quality of the stimuli cannot be measured in these experiments. We show that microstimulation within the hand area of the somatosensory cortex of a person with long-term spinal cord injury evokes tactile sensations perceived as originating from locations on the hand and that cortical stimulation sites are organized according to expected somatotopic principles...
October 19, 2016: Science Translational Medicine
https://www.readbyqxmd.com/read/27731524/accessing-hospital-packaged-foods-and-beverages-the-importance-of-a-seated-posture-when-eating
#20
A Bell, L Tapsell, K Walton, A Yoxall
BACKGROUND: Hospitalised and community dwelling older people (aged 65 years and over) have difficulties opening certain food and beverage items (e.g. cheese portions and tetra packs) served in public hospitals. Previously, the role of hand strength on successful pack opening has been explored in a seated position. However, because many people in hospital eat in bed, the present laboratory study examined the differences between participants opening a selection of products in a hospital bed and a chair...
October 12, 2016: Journal of Human Nutrition and Dietetics: the Official Journal of the British Dietetic Association
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