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https://www.readbyqxmd.com/read/28713255/the-impact-of-aerobic-exercise-on-fronto-parietal-network-connectivity-and-its-relation-to-mobility-an-exploratory-analysis-of-a-6-month-randomized-controlled-trial
#1
Chun L Hsu, John R Best, Shirley Wang, Michelle W Voss, Robin G Y Hsiung, Michelle Munkacsy, Winnie Cheung, Todd C Handy, Teresa Liu-Ambrose
Impaired mobility is a major concern for older adults and has significant consequences. While the widely accepted belief is that improved physical function underlies the effectiveness of targeted exercise training in improving mobility and reducing falls, recent evidence suggests cognitive and neural benefits gained through exercise may also play an important role in promoting mobility. However, the underlying neural mechanisms of this relationship are currently unclear. Thus, we hypothesize that 6 months of progressive aerobic exercise training would alter frontoparietal network (FPN) connectivity during a motor task among older adults with mild subcortical ischemic vascular cognitive impairment (SIVCI)-and exercise-induced changes in FPN connectivity would correlate with changes in mobility...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28704209/robotic-hand-assisted-training-for-spinal-cord-injury-driven-by-myoelectric-pattern-recognition-a-case-report
#2
Zhiyuan Lu, Kai-Yu Tong, Henry Shin, Argyrios Stampas, Ping Zhou
A 51-year-old man with an incomplete C6 spinal cord injury sustained 26 yrs ago attended twenty 2-hr visits over 10 wks for robot-assisted hand training driven by myoelectric pattern recognition. In each visit, his right hand was assisted to perform motions by an exoskeleton robot, while the robot was triggered by his own motion intentions. The hand robot was designed for this study, which can perform six kinds of motions, including hand closing/opening; thumb, index finger, and middle finger closing/opening; and middle, ring, and little fingers closing/opening...
July 12, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28696658/ultrasensitive-wearable-soft-strain-sensors-of-conductive-self-healing-and-elastic-hydrogels-with-synergistic-soft-and-hard-hybrid-networks
#3
Yan-Jun Liu, Wen-Tao Cao, Ming-Guo Ma, Pengbo Wan
Robust, stretchable and strain-sensitive hydrogels have recently attracted immense research interest due to their potential application in wearable strain sensors. The integration of the synergistic characteristics of decent mechanical properties, reliable self-healing capability, and high sensing sensitivity for fabricating conductive, elastic, self-healing, and strain-sensitive hydrogels is still a great challenge. Inspired by the mechanically excellent and self-healing biological soft tissues with hierarchical network structures, herein, functional network hydrogels are fabricated by the interconnection between a "soft" homogeneous polymer network and a "hard" dynamic ferric (Fe3+) cross-linked cellulose nanocrystals (CNCs-Fe(3+)) network...
July 11, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28687062/evaluation-of-hand-orthoses-in-duchenne-muscular-dystrophy
#4
Johanna Weichbrodt, Britt-Marie Eriksson, Anna-Karin Kroksmark
PURPOSE: The purpose of this study was to evaluate whether treatment of boys with Duchenne muscular dystrophy using hand orthoses could benefit joint mobility, grip strength, or fine motor function. METHOD: Eight boys with Duchenne muscular dystrophy were provided with individually customised rest orthoses. The results were analysed using single-subject design. The study included a baseline and an intervention phase. A follow-up examination was also performed. RESULTS: Boys with less than 50° passive wrist extension mobility were included...
July 7, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28682860/a-biomechanical-analysis-of-plate-fixation-using-unicortical-and-bicortical-screws-in-transverse-metacarpal-fracture-models-subjected-to-4-point-bending-and-dynamical-bending-test
#5
Eirini Liodaki, Robert Wendlandt, Klaus Waizner, Brigitte E Schopp, Peter Mailänder, Felix Stang
In the published literature there are controversial data to the biomechanical stability of monocortical comparing to the bicortical fixation of metacarpal fractures. The aim of this study was to compare the biomechanical stability of monocortical and bicortical locking osteosynthesis in quasi-static and dynamic 4-point bending tests of composite third metacarpal bone (4th Gen third metacarpal, Sawbones, Malmö, Sweden) fixed with 7-hole locking plate (XXS System, Biotech-Ortho, Wright, Memphis, TN). The tests to determine quasi-static yield and bending strength as well as fatigue strength were conducted in 4 groups of 10 samples after creating standardized mid-shaft transverse osteotomies using a diamont belt grinder (0...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28681161/functional-and-cosmetic-outcome-of-single-digit-ray-amputation-in-hand
#6
A K Bhat, A M Acharya, J K Narayanakurup, B Kumar, P S Nagpal, A Kamath
PURPOSE: To assess patient satisfaction, functional and cosmetic outcomes of single-digit ray amputation in hand and identify factors that might affect the outcome. METHODS: Forty-five patients who underwent ray amputation were evaluated, 37 males and eight females whose mean age was 36.6 years ranging between 15 and 67 years. Twenty-eight patients had dominant hand involvement. Twenty-one patients underwent primary ray amputation, and 24 patients had secondary ray amputation...
July 5, 2017: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/28674489/multi-finger-interaction-and-synergies-in-finger-flexion-and-extension-force-production
#7
Jaebum Park, Dayuan Xu
The aim of this study was to discover finger interaction indices during single-finger ramp tasks and multi-finger coordination during a steady state force production in two directions, flexion, and extension. Furthermore, the indices of anticipatory adjustment of elemental variables (i.e., finger forces) prior to a quick pulse force production were quantified. It is currently unknown whether the organization and anticipatory modulation of stability properties are affected by force directions and strengths of in multi-finger actions...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28671883/prevention-of-peritendinous-adhesion-formation-after-the-flexor-tendon-surgery-in-rabbits-a-comparative-study-between-use-of-local-interferon-%C3%AE-interferon-%C3%AE-and-5-fluorouracil
#8
Mohammad Javad Fatemi, Shahram Shirani, Roohollah Sobhani, Amir Hossein Lebaschi, Mohammad Javad Gharegozlou, Tooran Bagheri, Mirsepehr Pedram, Mohsen Saberi, Shirin Araghi, Mohammad Ali Fatemi
BACKGROUND: Peritendinous adhesion is the most common complication after tendon surgery, particularly in zone II of the hand. Prevention of inflammation around the tendon, which develops after trauma and surgery, can decrease the tendon adhesion formation. This study compares the effect of some anti-inflammatory cytokines with 5-fluorouracil (5-FU) on the tensile strength and in prevention of peritendinous adhesion formation. METHODS: Sixteen rabbits were allocated equally into 4 groups...
June 1, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28669300/contralateral-c-7-transfer-is-direct-repair-really-superior-to-grafting
#9
Anil Bhatia, Piyush Doshi, Ashok Koul, Vitrag Shah, Justin M Brown, Mahmoud Salama
It is not uncommon for a severe traumatic brachial plexus injury to involve all 5 roots, resulting in a flail upper limb. In such cases, surgical reconstruction is often palliative, providing only rudimentary function. Nerve transfers are the mainstay of reconstructive strategies due to the predominance of root avulsions. Consistent results are obtained only for restoration of shoulder stability and elbow flexion, whereas restoring useful hand function remains a challenge. The transfer of the contralateral C-7 (cC-7) is commonly used in an attempt to restore basic hand function, but results are notoriously unreliable and inconsistent...
July 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28651417/-influences-of-different-rehabilitative-methods-on-function-of-hands-and-psychological-anxiety-of-patients-with-deeply-burned-hands-retaining-denatured-dermis-and-grafting-large-autologous-skin
#10
H Peng, P F Liang, A Wang, L Q Yue
Objective: To investigate influences of different rehabilitative methods on function of hands and psychological anxiety of patients with deeply burned hands retaining denatured dermis and grafting large autologous skin. Methods: Forty-four patients with deeply burned hands, conforming to the study criteria were admitted to Department of Burns and Reconstructive Surgery of Xiangya Hospital of Central South University from January 2014 to June 2015. Patients were divided into propaganda education rehabilitation group (PER, n=23) and specially-assigned person rehabilitation group (SAPR, n=21) according to the random number table and patients' willingness...
May 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28649432/an-individual-based-model-for-collective-cancer-cell-migration-explains-speed-dynamics-and-phenotype-variability-in-response-to-growth-factors
#11
Damian Stichel, Alistair M Middleton, Benedikt F Müller, Sofia Depner, Ursula Klingmüller, Kai Breuhahn, Franziska Matthäus
Collective cell migration is a common phenotype in epithelial cancers, which is associated with tumor cell metastasis and poor patient survival. However, the interplay between physiologically relevant pro-migratory stimuli and the underlying mechanical cell-cell interactions are poorly understood. We investigated the migratory behavior of different collectively migrating non-small cell lung cancer cell lines in response to motogenic growth factors (e.g. epidermal growth factor) or clinically relevant small compound inhibitors...
2017: NPJ Systems Biology and Applications
https://www.readbyqxmd.com/read/28630252/alpha-band-brain-oscillations-shape-the-processing-of-perceptible-as-well-as-imperceptible-somatosensory-stimuli-during-selective-attention
#12
Norman Forschack, Till Nierhaus, Matthias M Müller, Arno Villringer
Attention filters and weights sensory information according to behavioral demands. Stimulus-related neural responses are increased for the attended stimulus. Does alpha-band activity mediate this effect and is it restricted to conscious sensory events (suprathreshold), or does it also extend to unconscious stimuli (subthreshold)? To address these questions, we recorded EEG in healthy male and female volunteers undergoing subthreshold and suprathreshold somatosensory electrical stimulation to the left or right index finger...
June 19, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28627199/hand-span-influences-optimal-grip-span-in-adolescents-with-down-syndrome
#13
José Antonio Casajús, Germán Vicente-Rodríguez, Alejandro González-Agüero, Ángel Matute-Llorente
INTRODUCTION: The hand grip strength test provides useful and reliable information about overall health. Different studies have investigated the optimal grip span for determining maximal hand grip strength in different populations such as adults, adolescents and children without disabilities. OBJECTIVE: To ascertain whether there is an optimal grip span for determining maximal hand grip strength in adolescents with Down syndrome (DS). METHODS: Twenty-seven right-handed youths with DS (seven females) aged 15...
June 5, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28626855/a-scaling-method-to-individualise-muscle-force-capacities-in-musculoskeletal-models-of-the-hand-and-wrist-using-isometric-strength-measurements
#14
Benjamin Goislard de Monsabert, G Rao, A Gay, E Berton, L Vigouroux
Because the force-generating capacities of muscles are currently estimated using anatomical data obtained from cadaver specimens, hand musculoskeletal models provide only a limited representation of the specific features of individual subjects. A scaling method is proposed to individualise muscle capacities using dynamometric measurements and electromyography. For each subject, a strength profile was first defined by measuring net moments during eight maximum isometric contractions about the wrist and metacarpophalangeal joints...
June 19, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28619683/functional-assessment-and-quality-of-life-in-patients-following-replantation-of-the-distal-half-of-the-forearm-except-fingers-a-review-of-11-cases
#15
U Assouline, D Feuvrier, D Lepage, Y Tropet, L Obert, J Pauchot
The aims of this study were to evaluate the function and quality of life in patients who have undergone replantation of the hand or forearm. We carried out a retrospective single-center study of cases performed between 1977 and 2015. Our hospital's database was searched for patients who underwent replantation of the distal half of the forearm and hand (except the fingers). The evaluation included sensitivity, joint mobility, strength and quality of life. Conventional functional scores were used. Seventeen replantation cases were identified...
June 12, 2017: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/28619011/to-be-active-through-indoor-climbing-an-exploratory-feasibility-study-in-a-group-of-children-with-cerebral-palsy-and-typically-developing-children
#16
Mark Schram Christensen, Thor Jensen, Camilla B Voigt, Jens Bo Nielsen, Jakob Lorentzen
BACKGROUND: Cerebral Palsy (CP) is the most common cause of motor disabilities in children and young adults and it is also often associated with cognitive and physiological challenges. Climbing requires a multifaceted repertoire of movements, participants at all levels of expertise may be challenged functionally and cognitively, making climbing of great potential interest in (re)habilitation settings. However, until now only few research projects have investigated the feasibility of climbing as a potential activity for heightening physical activity in children with CP and the possible beneficial effects of climbing activities in populations with functional and/or cognitive challenges...
June 15, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28614420/the-degree-of-cardiac-baroreflex-involvement-during-active-standing-is-associated-with-the-quality-of-life-in-fibromyalgia-patients
#17
Antonio Roberto Zamunér, Alberto Porta, Carolina Pieroni Andrade, Meire Forti, Andrea Marchi, Raffaello Furlan, Franca Barbic, Aparecida Maria Catai, Ester Silva
Fibromyalgia syndrome (FMS) is a rheumatologic disorder characterized by chronic widespread pain, fatigue and other symptoms. Baroreflex dysfunction has been observed in women with FMS. However, it is unknown whether the limited involvement of the baroreflex control during an orthostatic stimulus has some impact on the quality of life of the FMS patient. Therefore, the aim of the study is evaluate the relationship between the quality of life of the FMS patient and indexes of the cardiovascular autonomic control as estimated from spontaneous fluctuations of heart period (HP) and systolic arterial pressure (SAP)...
2017: PloS One
https://www.readbyqxmd.com/read/28608275/robert-mathys-finger-prosthesis-of-the-proximal-interphalangeal-joint-a-retrospective-case-series-of-19-joints-in-17-patients
#18
J P Rijnja, P P G M Kouwenberg, S Ray, E T Walbeehm
INTRODUCTION: The Robert Mathys (RM) Finger is a hinged type of arthroplasty for the metacarpophalangeal and proximal interphalangeal (PIP) joint that compensates ligament instability. The aim of this study is to evaluate the outcomes and complications of RM Finger arthroplasty of the PIP joint. MATERIALS AND METHODS: A retrospective case series of 19 RM Finger arthroplasties of the PIP joint in 17 patients was performed with a median follow-up of 36 months. The active range of motion (AROM) was measured pre-operatively, at the 6-week follow-up, at the termination of hand therapy, and at the final follow-up...
June 12, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28583648/fluorescence-optical-imaging-and-3t-mri-for-detection-of-synovitis-in-patients-with-rheumatoid-arthritis-in-comparison-to-a-composite-standard-of-reference
#19
Klaus Thuermel, Jan Neumann, Pia M Jungmann, Christoph Schäffeler, Simone Waldt, Alexander Heinze, Alexander Beckmann, Christine Hauser, Anna-Lena Hasenau, Moritz Wildgruber, Sigrun Clotten, Matti Sievert, Bernhard Haller, Klaus Woertler, Norbert Harasser, Ernst J Rummeny, Reinhard Meier
OBJECTIVES: To address whether Indocyanine Green (ICG) enhanced fluorescence optical imaging (FOI) is more sensitive than magnetic resonance imaging (MRI) in the detection of synovitis of the wrist and finger joints in rheumatoid arthritis and to analyze the performance of FOI depending on the grade of synovitis. METHODS: Twenty patients with highly active rheumatoid arthritis (mean DAS28-ESR 5.25±1.0) and thirteen healthy volunteers underwent clinical examination, FOI and contrast-enhanced 3T-MRI...
May 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28580720/learned-control-of-inter-hemispheric-connectivity-effects-on-bimanual-motor-performance
#20
Diljit Singh Kajal, Christoph Braun, Jürgen Mellinger, Matthew D Sacchet, Sergio Ruiz, Eberhard Fetz, Niels Birbaumer, Ranganatha Sitaram
Bimanual movements involve the interactions between both primary motor cortices. These interactions are assumed to involve phase-locked oscillatory brain activity referred to as inter-hemispheric functional coupling. So far, inter-hemispheric functional coupling has been investigated as a function of motor performance. These studies report mostly a negative correlation between the performance in motor tasks and the strength of functional coupling. However, correlation might not reflect a causal relationship...
June 5, 2017: Human Brain Mapping
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