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https://www.readbyqxmd.com/read/28629845/role-of-primary-motor-cortex-in-the-control-of-manual-dexterity-assessed-via-sequential-bilateral-lesion-in-the-adult-macaque-monkey-a-case-study
#1
Julie Savidan, Mélanie Kaeser, Abderraouf Belhaj-Saïf, Eric Schmidlin, Eric M Rouiller
From a case study, we describe the impact of unilateral lesion of the hand area in the primary motor cortex (M1) on manual dexterity and the role of the intact contralesional M1 in long-term functional recovery. An adult macaque monkey performed two manual dexterity tasks: (i) "modified Brinkman board" task, assessed simple precision grip versus complex precision grip, the latter involved a hand postural adjustment; (ii) "modified Klüver board" task, assessed movements ranging from power grip to precision grip, pre-shaping and grasping...
June 16, 2017: Neuroscience
https://www.readbyqxmd.com/read/28627718/motor-performance-in-children-with-noonan-syndrome
#2
Ellen A Croonen, Marlou Essink, Ineke van der Burgt, Jos M Draaisma, Cees Noordam, Maria W G Nijhuis-van der Sanden
Although problems with motor performance in daily life are frequently mentioned in Noonan syndrome, the motor performance profile has never been systematically investigated. The aim of this study was to examine whether a specific profile in motor performance in children with Noonan syndrome was seen using valid norm-referenced tests. The study assessed motor performance in 19 children with Noonan syndrome (12 females, mean age 9 years 4 months, range 6 years 1 month to 11 years and 11 months, SDS 1 year and 11 months)...
June 19, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28604171/abnormal-eeg-responses-to-tms-during-the-cortical-silent-period-are-associated-with-hand-function-in-chronic-stroke
#3
Whitney A Gray, Jacqueline A Palmer, Steven L Wolf, Michael R Borich
BACKGROUND: Abnormal brain excitability influences recovery after stroke at which time a prolonged transcranial magnetic stimulation (TMS)-induced electromyographic silent period is thought to reflect abnormal inhibitory interneuron excitability. Cortical excitability can be probed directly during the silent period using concurrent electroencephalography (EEG) of TMS-evoked responses. OBJECTIVE: The primary study objectives were to characterize TMS-evoked cortical potentials (TEPs) using EEG and to investigate associations with persistent hand and arm motor dysfunction in individuals with chronic stroke...
June 1, 2017: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/28603509/emerging-trends-in-the-multimodal-nature-of-cognition-touch-and-handedness
#4
REVIEW
Miriam Ittyerah
Advances in tactile cognition and haptics have increased our understanding of the multimodal nature of touch. Haptic data is mostly confined to human performance arising from the flexibility and dexterity of the fingers used to discriminate shapes and objects. Studies with infants indicate that recognition of objects either seen or held in the hand is possible during early periods of infancy. Evidence indicates performance differences between the hands decrease over periods of development, reflecting maturation of the cortical brain system supporting motor skills...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28595090/associations-between-motor-proficiency-in-children-with-history-of-maltreatment-and-living-in-social-economically-vulnerability
#5
Rodrigo Flores Sartori, Paulo Felipe Ribeiro Bandeira, Glauber Carvalho Nobre, Maria Helena da Silva Ramalho, Nadia Cristina Valentini
Maltreatment and living in poor socioeconomic conditions during childhood may implicate in deficits on motor proficiency, nevertheless, the literature on this issue is still scarce. The goal of the study was to investigate the possible associations among manual dexterity, aiming and catching tasks, and balance tasks for children who suffers maltreatment and lived in social vulnerability. Eighty-two (82) children (08-09 years old) participated in the study. Forty-one (41) belong to the (SEV-M Group) children living in social economic vulnerability and were previously maltreated (lived in foster homes as results of parental neglect and domestic violence), and 41 belong to the (SEV Group) children living in social economical vulnerability with no history of childhood maltreatment...
June 5, 2017: Child Abuse & Neglect
https://www.readbyqxmd.com/read/28589732/functional-factors-that-are-important-correlates-to-physical-activity-in-people-with-multiple-sclerosis-a-pilot-study
#6
Nathaniel B Ketelhut, John H Kindred, Richard E Pimentel, Ann M Hess, Brian L Tracy, Raoul F Reiser, Thorsten Rudroff
PURPOSE: Identify functional factors that are important correlates to physical activity levels among people with multiple sclerosis. METHODS: A total of eight functional tests were conducted and physical activity was objectively measured (Actigraph GT3X accelerometer) for one week in 34 people with multiple sclerosis. A corrected Akaike Information Criterion analysis was performed to identify the strongest correlates with moderate-to-vigorous physical activity, total activity and sedentary time...
June 7, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28587056/tolerance-of-the-brachial-plexus-to-high-dose-reirradiation
#7
Allen M Chen, Taeko Yoshizaki, Maria A Velez, Argin G Mikaeilian, Sophia Hsu, Minsong Cao
PURPOSE: To study the tolerance of the brachial plexus to high doses of radiation exceeding historically accepted limits by analyzing human subjects treated with reirradiation for recurrent tumors of the head and neck. METHODS AND MATERIALS: Data from 43 patients who were confirmed to have received overlapping dose to the brachial plexus after review of radiation treatment plans from the initial and reirradiation courses were used to model the tolerance of this normal tissue structure...
May 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28578819/home-based-training-for-dexterity-in-parkinson-s-disease-a-randomized-controlled-trial
#8
Tim Vanbellingen, Thomas Nyffeler, Julia Nigg, Jorina Janssens, Johanna Hoppe, Tobias Nef, René M Müri, Erwin E H van Wegen, Gert Kwakkel, Stephan Bohlhalter
BACKGROUND: Patients with Parkinson's disease exhibit disturbed manual dexterity. This impairment leads to difficulties in activities of daily living, such as buttoning a shirt or hand-writing. The aim of the present study was to investigate the effectiveness of a home-based dexterity program on fine motor skills in a single-blinded, randomized controlled trial, in patients with Parkinson's disease. METHODS: One hundred and three patients with Parkinson's disease (aged between 48 and 80 years, Hoehn & Yahr stage I-IV) were randomized to either a home-based dexterity program (HOMEDEXT) or Thera-band program...
May 25, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28567537/hiv-1-associated-neurocognitive-disorder-epidemiology-pathogenesis-diagnosis-and-treatment
#9
REVIEW
Christian Eggers, Gabriele Arendt, Katrin Hahn, Ingo W Husstedt, Matthias Maschke, Eva Neuen-Jacob, Mark Obermann, Thorsten Rosenkranz, Eva Schielke, Elmar Straube
The modern antiretroviral treatment of human immunodeficiency virus (HIV-1) infection has considerably lowered the incidence of opportunistic infections. With the exception of the most severe dementia manifestations, the incidence and prevalence of HIV-associated neurocognitive disorders (HAND) have not decreased, and HAND continues to be relevant in daily clinical practice. Now, HAND occurs in earlier stages of HIV infection, and the clinical course differs from that before the widespread use of combination antiretroviral treatment (cART)...
May 31, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28548032/impact-of-age-sex-socioeconomic-status-and-physical-activity-on-associated-movements-and-motor-speed-in-preschool-children
#10
Tanja H Kakebeeke, Annina E Zysset, Nadine Messerli-Bürgy, Aziz Chaouch, Kerstin Stülb, Claudia S Leeger-Aschmann, Einat A Schmutz, Amar Arhab, Valentin Rousson, Susi Kriemler, Simone Munsch, Jardena J Puder, Oskar G Jenni
INTRODUCTION: Young children generally show contralateral associated movements (CAMs) when they are making an effort to perform a unimanual task. CAM and motor speed are two relevant aspects of motor proficiency in young children. These CAMs decrease over age, while motor speed increases. As both CAM and motor speed are associated with age, we were interested in whether these two parameters are also linked with each other. METHOD: In this study, three manual dexterity tasks with the dominant and nondominant hands (pegboard, repetitive hand, and repetitive finger tasks) were used to investigate the effect of covariates (age, sex, socioeconomic status, total physical activity) on both motor speed and CAMs in preschool children...
May 26, 2017: Journal of Clinical and Experimental Neuropsychology
https://www.readbyqxmd.com/read/28543714/motor-function-domains-in-alternating-hemiplegia-of-childhood
#11
Melanie Masoud, Kelly Gordon, Amanda Hall, Joan Jasien, Kara Lardinois, Julie Uchitel, Melissa Mclean, Lyndsey Prange, Jeffrey Wuchich, Mohamad A Mikati
AIM: To characterize motor function profiles in alternating hemiplegia of childhood, and to investigate interrelationships between these domains and with age. METHOD: We studied a cohort of 23 patients (9 males, 14 females; mean age 9y 4mo, range 4mo-43y) who underwent standardized tests to assess gross motor, upper extremity motor control, motor speech, and dysphagia functions. RESULTS: Gross Motor Function Classification System (GMFCS), Gross Motor Function Measure-88 (GMFM-88), Manual Ability Classification System (MACS), and Revised Melbourne Assessment (MA2) scales manifested predominantly mild impairments; motor speech, moderate to severe; Modified Dysphagia Outcome and Severity Scale (M-DOSS), mild-to moderate deficits...
May 25, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28542319/shared-and-differentiated-motor-skill-impairments-in-children-with-dyslexia-and-or-attention-deficit-disorder-from-simple-to-complex-sequential-coordination
#12
Marie-Ève Marchand-Krynski, Olivier Morin-Moncet, Anne-Marie Bélanger, Miriam H Beauchamp, Gabriel Leonard
Dyslexia and Attention deficit disorder (AD) are prevalent neurodevelopmental conditions in children and adolescents. They have high comorbidity rates and have both been associated with motor difficulties. Little is known, however, about what is shared or differentiated in dyslexia and AD in terms of motor abilities. Even when motor skill problems are identified, few studies have used the same measurement tools, resulting in inconstant findings. The present study assessed increasingly complex gross motor skills in children and adolescents with dyslexia, AD, and with both Dyslexia and AD...
2017: PloS One
https://www.readbyqxmd.com/read/28539095/effectiveness-of-non-fluoride-and-fluoride-dentifrices-for-denture-hygiene
#13
Gökçe Meriç, Meryem Güvenir, Kaya Suer
OBJECTIVE: To compare the effectiveness of commonly used herbal/non-fluoride with fluoride dentifrices in order to eliminate pathogenic oral microorganisms from denture base material. MATERIALS AND METHODS: Heat-polymerized acrylic resin specimens (n = 288) were divided into three groups and each group inoculated with three various microorganisms (n = 96 for each) Candida albicans, Staphylococcus aureus and Pseudomonas aeruginosa (P. aeruginosa). Contaminated specimens were randomly assigned to the application of six herbal/non-fluoride and three fluoride dentifrices...
May 24, 2017: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/28532877/task-based-mirror-therapy-enhances-ipsilesional-motor-functions-in-stroke-a-pilot-study
#14
Kamal Narayan Arya, Shanta Pandian, Dharmendra Kumar
OBJECTIVE: To examine the effect of Mirror therapy (MT) on dexterity, coordination, and muscle strength of the less-affected upper limb in stroke. DESIGN: Pre-test post-test, single group, experimental design. SETTING: Rehabilitation institute. PARTICIPANTS: Post-stroke hemiparetic chronic subjects (N = 21). INTERVENTIONS: Forty sessions of MT using various tasks in addition to the conventional rehabilitation...
April 2017: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/28524811/impact-of-tactile-sensation-on-dexterity-a-cross-sectional-study-of-patients-with-impaired-hand-function-after-stroke
#15
Elena L Pavlova, Jörgen Borg
The authors sought to explore the impact of tactile sensation on manual dexterity and the validity of the strength-dexterity test in subjects with chronic impairments after stroke in a cross-sectional study of 24 patients with impaired hand function after stroke. Dexterity was assessed by the strength-dexterity test, Box and Blocks, and Nine-Hole Peg Test, and the ABILHAND questionnaire. Sensation was measured by pinprick, cotton-wool, graphesthesia, and 2-point discrimination tests. Sensation in the paretic hand had strong association with paretic hand performance in the strength-dexterity test and Nine-Hole Peg Test and explained 13% of the variance...
May 19, 2017: Journal of Motor Behavior
https://www.readbyqxmd.com/read/28522259/assessing-the-effects-of-manual-dexterity-and-playing-computer-games-on-catheter-wire-manipulation-for-inexperienced-operators
#16
Z Alsafi, Y Hameed, P Amin, S Shamsad, U Raja, A Alsafi, M S Hamady
AIM: To investigate the effect of playing computer games and manual dexterity on catheter-wire manipulation in a mechanical aortic model. MATERIAL AND METHODS: Medical student volunteers filled in a preprocedure questionnaire assessing their exposure to computer games. Their manual dexterity was measured using a smartphone game. They were then shown a video clip demonstrating renal artery cannulation and were asked to reproduce this. All attempts were timed. Two-tailed Student's t-test was used to compare continuous data, while Fisher's exact test was used for categorical data...
May 15, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28512858/comprehension-of-handwriting-development-pen-grip-kinetics-in-handwriting-tasks-and-its-relation-to-fine-motor-skills-among-school-age-children
#17
Yu-Chen Lin, Yen-Li Chao, Shyi-Kuen Wu, Ho-Hsio Lin, Chieh-Hsiang Hsu, Hsiao-Man Hsu, Li-Chieh Kuo
BACKGROUND/AIM: Numerous tools have been developed to evaluate handwriting performances by analysing written products. However, few studies have directly investigated kinetic performances of digits when holding a pen. This study thus attempts to investigate pen-grip kinetics during writing tasks of school-age children and explore the relationship between the kinetic factors and fine motor skills. METHODS: This study recruited 181 children aged from 5 to 12 years old and investigated the effects of age on handwriting kinetics and the relationship between these and fine motor skills...
May 16, 2017: Australian Occupational Therapy Journal
https://www.readbyqxmd.com/read/28509639/factors-associated-with-simulator-assessed-laparoscopic-surgical-skills-of-veterinary-students
#18
Jessica J Kilkenny, Ameet Singh, Carolyn L Kerr, Deep K Khosa, Boel A Fransson
OBJECTIVE To determine whether simulator-assessed laparoscopic skills of veterinary students were associated with training level and prior experience performing nonlaparoscopic veterinary surgery and other activities requiring hand-eye coordination and manual dexterity. DESIGN Experiment. SAMPLE 145 students without any prior laparoscopic surgical or fundamentals of laparoscopic surgery (FLS) simulator experience in years 1 (n = 39), 2 (34), 3 (39), and 4 (33) at a veterinary college. PROCEDURES A questionnaire was used to collect data from participants regarding experience performing veterinary surgery, playing video games, and participating in other activities...
June 1, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28502698/effectiveness-of-a-fine-motor-skills-rehabilitation-program-on-upper-limb-disability-manual-dexterity-pinch-strength-range-of-fingers-motion-performance-in-activities-of-daily-living-functional-independency-and-general-self-efficacy-in-hand-osteoarthritis-a
#19
Jose Manuel Pérez-Mármol, Ma Carmen García-Ríos, María Azucena Ortega-Valdivieso, Enrique Elías Cano-Deltell, María Isabel Peralta-Ramírez, Kelly Ickmans, María Encarnación Aguilar-Ferrándiz
STUDY DESIGN: A randomized clinical trial. INTRODUCTION: Rehabilitation treatments for improving fine motor skills (FMS) in hand osteoarthritis (HOA) have not been well explored yet. PURPOSE OF THE STUDY: To assess the effectiveness of a rehabilitation program on upper limb disability, independence of activities of daily living (ADLs), fine motor abilities, functional independency, and general self-efficacy in older adults with HOA. METHODS: About 45 adults (74-86 years) with HOA were assigned to an experimental group for completing an FMS intervention or a control group receiving conventional occupational therapy...
May 11, 2017: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/28501480/assessing-manual-dexterity-comparing-the-workability-rate-of-manipulation-test-with-the-minnesota-manual-dexterity-test
#20
Ying-Chih Wang, Rick Wickstrom, Sheng-Che Yen, Jay Kapellusch, Kimberly A Grogan
STUDY DESIGN: Cross-sectional study. INTRODUCTION: The WorkAbility Rate of Manipulation Test (WRMT), an adaptation of the Minnesota Manual Dexterity Test (MMDT), contains a revised board and protocols to improve its utility for therapy or fitness assessment. PURPOSE OF THE STUDY: To describe the development and preliminary psychometric properties of WRMT. METHODS: Sixty-six healthy participants completed MMDT and WRMT in a random order followed by a user experience survey...
May 10, 2017: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
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