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https://www.readbyqxmd.com/read/28814032/studying-the-implementation-of-iterative-impedance-control-for-assistive-hand-rehabilitation-using-an-exoskeleton
#1
T Martineau, R Vaidyanathan
A positive training synergy can be obtained when two individuals attempt to learn the same motor task while mechanically coupled to one another. In this paper, we have studied how mimicking this interaction through impedance control can be exploited to improve assistance delivered by hand exoskeleton devices during rehabilitation. In this context, the machine and user take complementary roles akin to two coupled individuals. We present the derivation of a dynamic model of the human hand for the purpose of controller development for new hand exoskeleton platforms...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28814030/quantitative-evaluation-of-hand-functions-using-a-wearable-hand-exoskeleton-system
#2
Suin Kim, Jeongsoo Lee, Wookeun Park, Joonbum Bae
To investigate, improve, and observe the effect of rehabilitation therapy, many studies have been conducted on evaluating the motor function quantitatively by developing various types of robotic systems. Even though the robotic systems have been developed, functional evaluation of the hand has been rarely investigated, because it is difficult to install a number of actuators or sensors to the hand due to limited space around the fingers. Therefore, in this study, a hand exoskeleton was developed to satisfy the required specifications for evaluating the hand functions including spasticity of finger flexors, finger independence, and multi-digit synergy and algorithms to evaluate such functions were proposed...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813954/human-robot-sensor-interface-for-cardiac-rehabilitation
#3
Juan S Lara, Jonathan Casas, Andres Aguirre, Marcela Munera, Monica Rincon-Roncancio, Bahar Irfan, Emmanuel Senft, Tony Belpaeme, Carlos A Cifuentes
Cardiovascular disease is the leading cause of death in the world. A program of cardiac rehabilitation (CR) is related to physical activities or exercises to regain the optimal quality of life. CR relies on the necessity to evaluate, control and supervise a patient's status and progress. This work has two objectives: on the one hand, provide a tool for clinicians to assess the patient's status during CR. On the other hand, there is evidence that robots can motivate patients during therapeutic procedures. Our sensor interface explores the possibility to integrate a robotic agent into cardiac therapy...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813905/design-and-characterization-of-the-openwrist-a-robotic-wrist-exoskeleton-for-coordinated-hand-wrist-rehabilitation
#4
Evan Pezent, Chad G Rose, Ashish D Deshpande, Marcia K O'Malley
Robotic devices have been clinically verified for use in long duration and high intensity rehabilitation needed for motor recovery after neurological injury. Targeted and coordinated hand and wrist therapy, often overlooked in rehabilitation robotics, is required to regain the ability to perform activities of daily living. To this end, a new coupled hand-wrist exoskeleton has been designed. This paper details the design of the wrist module and several human-related considerations made to maximize its potential as a coordinated hand-wrist device...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813897/design-and-testing-of-an-under-actuated-surface-emg-driven-hand-exoskeleton
#5
A Lince, N Celadon, A Battezzato, A Favetto, S Appendino, P Ariano, M Paleari
Stroke and other neurological pathologies are an increasing cause of hand impairment, involving expensive rehabilitative therapies. In this scenario, robotics applied to hand rehabilitation and assistance appears particularly promising in order to lower therapy costs and boost its efficacy. This work shows a recently conceived hand exoskeleton, from the design and realization to its preliminary evaluation. A control strategy based on surface electromyography (sEMG) signals is integrated: preliminary tests performed on healthy subjects show the validity of this choice...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813889/design-of-a-clinically-relevant-upper-limb-exoskeleton-robot-for-stroke-patients-with-spasticity
#6
Dong Jin Lee, Sung Jin Bae, Sung Ho Jang, Pyung Hun Chang
The purpose of this research is to propose a design of a clinically relevant upper-limb (hand, wrist, and elbow) exoskeleton that meets the clinical requirements. At first, the proposed robot was designed to have sufficient torque for passive exercise therapy and spasticity measurement of post-stroke patients with spasticity (grade 3 or lower in Modified Ashworth Scale). Because the therapy of patients with high level spasticity could be laborious for therapists by increased muscle tone, and the patients tend not to get enough rehabilitation treatment...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813888/fully-embedded-myoelectric-control-for-a-wearable-robotic-hand-orthosis
#7
Franziska Ryser, Tobias Butzer, Jeremia P Held, Olivier Lambercy, Roger Gassert
To prevent learned non-use of the affected hand in chronic stroke survivors, rehabilitative training should be continued after discharge from the hospital. Robotic hand orthoses are a promising approach for home rehabilitation. When combined with intuitive control based on electromyography, the therapy outcome can be improved. However, such systems often require extensive cabling, experience in electrode placement and connection to external computers. This paper presents the framework for a stand-alone, fully wearable and real-time myoelectric intention detection system based on the Myo armband...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813881/simulation-of-variable-impedance-as-an-intervention-for-upper-extremity-motor-exploration
#8
Felix C Huang
Current methods in robot-assisted therapy are limited in providing predictions of the effectiveness of interventions. Our approach focuses on how robotic interaction can impact the distribution of movements expressed in the arm. Using data from a previous study with stroke survivors (n=10), we performed simulations to examine how changes in hand endpoint impedance would alter exploratory motion. We present methods for designing a custom training intervention, by relating the desired change in acceleration covariance in planar motion with a corresponding change in inertia matrix...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813871/clinical-effectiveness-of-combined-virtual-reality-and-robot-assisted-fine-hand-motion-rehabilitation-in-subacute-stroke-patients
#9
Xianwei Huang, Fazel Naghdy, Golshah Naghdy, Haiping Du
Robot-assisted therapy is regarded as an effective and reliable method for the delivery of highly repetitive rehabilitation training in restoring motor skills after a stroke. This study focuses on the rehabilitation of fine hand motion skills due to their vital role in performing delicate activities of daily living (ADL) tasks. The proposed rehabilitation system combines an adaptive assist-as-needed (AAN) control algorithm and a Virtual Reality (VR) based rehabilitation gaming system (RGS). The developed system is described and its effectiveness is validated through clinical trials on a group of eight subacute stroke patients for a period of six weeks...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28811905/surgical-sympathectomy-for-buerger-s-disease
#10
REVIEW
Daniel G Cacione, Daniel H Moreno, Luis Cu Nakano, José Cc Baptista-Silva
Buerger's disease is characterized by recurring progressive inflammation and occlusions in small and medium arteries and veins of the limbs. Its cause is unknown, but it is most common in young men with a history of tobacco use. It is responsible for ischemic ulcers and extreme pain in the hands and feet. In many cases, notably in patients with the most severe presentations, there is no possibility of improving the condition with surgery (limb revascularisation), and therefore, alternative therapies (e.g. sympathectomy) is used...
August 2017: JRSM Open
https://www.readbyqxmd.com/read/28811349/brain-macrophages-in-simian-immunodeficiency-virus-infected-antiretroviral-suppressed-macaques-a-functional-latent-reservoir
#11
Claudia R Avalos, Celina M Abreu, Suzanne E Queen, Ming Li, Sarah Price, Erin N Shirk, Elizabeth L Engle, Ellen Forsyth, Brandon T Bullock, Feilim Mac Gabhann, Stephen W Wietgrefe, Ashley T Haase, M Christine Zink, Joseph L Mankowski, Janice E Clements, Lucio Gama
A human immunodeficiency virus (HIV) infection cure requires an understanding of the cellular and anatomical sites harboring virus that contribute to viral rebound upon treatment interruption. Despite antiretroviral therapy (ART), HIV-associated neurocognitive disorders (HAND) are reported in HIV-infected individuals on ART. Biomarkers for macrophage activation and neuronal damage in cerebrospinal fluid (CSF) of HIV-infected individuals demonstrate continued effects of HIV in brain and suggest that the central nervous system (CNS) may serve as a viral reservoir...
August 15, 2017: MBio
https://www.readbyqxmd.com/read/28811203/bpn-a-marine-derived-ptp1b-inhibitor-activates-insulin-signaling-and-improves-insulin-resistance-in-c2c12-myotubes
#12
Qi Xu, Jiao Luo, Ning Wu, Renshuai Zhang, Dayong Shi
Insulin resistance is a key feature of type 2 diabetes mellitus (T2DM) and is characterized by defects in insulin signaling. Protein tyrosine phosphatase 1B (PTP1B) is a major negative regulator of insulin signaling cascade and has attracted intensive investigation in recent T2DM therapy study. BPN, a marine-derived bromophenol compound, was isolated from the red alga Rhodomela confervoides. This study investigated the effects of BPN on the insulin signaling pathway in insulin-resistant C2C12 myotubes by inhibiting PTP1B...
August 12, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28811122/acute-kidney-injury-after-computed-tomography-a-meta-analysis
#13
REVIEW
Ryan D Aycock, Lauren M Westafer, Jennifer L Boxen, Nima Majlesi, Elizabeth M Schoenfeld, Raveendhara R Bannuru
STUDY OBJECTIVE: Computed tomography (CT) is an important imaging modality used in the diagnosis of a variety of disorders. Imaging quality may be improved if intravenous contrast is added, but there is a concern for potential renal injury. Our goal is to perform a meta-analysis to compare the risk of acute kidney injury, need for renal replacement, and total mortality after contrast-enhanced CT versus noncontrast CT. METHODS: We searched MEDLINE (PubMed), the Cochrane Library, CINAHL, Web of Science, ProQuest, and Academic Search Premier for relevant articles...
August 12, 2017: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/28811074/management-of-multidrug-resistant-gram-negative-bacilli-infections-in-solid-organ-transplant-recipients-set-gesitra-seimc-reipi-recommendations
#14
REVIEW
J M Aguado, J T Silva, M Fernández-Ruiz, E Cordero, J Fortún, C Gudiol, L Martínez-Martínez, E Vidal, L Almenar, B Almirante, R Cantón, J Carratalá, J J Caston, E Cercenado, C Cervera, J M Cisneros, M G Crespo-Leiro, V Cuervas-Mons, J Elizalde-Fernández, M C Fariñas, J Gavaldà, M J Goyanes, B Gutiérrez-Gutiérrez, D Hernández, O Len, R López-Andujar, F López-Medrano, P Martín-Dávila, M Montejo, A Moreno, A Oliver, A Pascual, E Pérez-Nadales, A Román-Broto, R San-Juan, D Serón, A Solé-Jover, M Valerio, P Muñoz, J Torre-Cisneros
Solid organ transplant (SOT) recipients are especially at risk of developing infections by multidrug resistant (MDR) Gram-negative bacilli (GNB), as they are frequently exposed to antibiotics and the healthcare setting, and are regulary subject to invasive procedures. Nevertheless, no recommendations concerning prevention and treatment are available. A panel of experts revised the available evidence; this document summarizes their recommendations: (1) it is important to characterize the isolate's phenotypic and genotypic resistance profile; (2) overall, donor colonization should not constitute a contraindication to transplantation, although active infected kidney and lung grafts should be avoided; (3) recipient colonization is associated with an increased risk of infection, but is not a contraindication to transplantation; (4) different surgical prophylaxis regimens are not recommended for patients colonized with carbapenem-resistant GNB; (5) timely detection of carriers, contact isolation precautions, hand hygiene compliance and antibiotic control policies are important preventive measures; (6) there is not sufficient data to recommend intestinal decolonization; (7) colonized lung transplant recipients could benefit from prophylactic inhaled antibiotics, specially for Pseudomonas aeruginosa; (8) colonized SOT recipients should receive an empirical treatment which includes active antibiotics, and directed therapy should be adjusted according to susceptibility study results and the severity of the infection...
July 26, 2017: Transplantation Reviews
https://www.readbyqxmd.com/read/28810999/case-report-on-the-use-of-a-custom-myoelectric-elbow-wrist-hand-orthosis-for-the-remediation-of-upper-extremity-paresis-and-loss-of-function-in-chronic-stroke
#15
Stefanie Dunaway, D Brianna Dezsi, Jessica Perkins, Daniel Tran, Jonathan Naft
INTRODUCTION: This case study describes the application of a commercially available, custom myoelectric elbow-wrist-hand orthosis (MEWHO), on a veteran diagnosed with chronic stroke with residual left hemiparesis. The MEWHO provides powered active assistance for elbow flexion/extension and 3 jaw chuck grip. It is a noninvasive orthosis that is driven by the user's electromyographic signal. Experience with the MEWHO and associated outcomes are reported. MATERIALS AND METHODS: The participant completed 21 outpatient occupational therapy sessions that incorporated the use of a custom MEWHO without grasp capability into traditional occupational therapy interventions...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28810998/delayed-diagnosis-of-acromegaly-in-the-context-of-post-traumatic-stress-disorder-due-to-symptoms-mimicking-known-psychotropic-medication-side-effects
#16
Ray-Bernard Portier, Afshin Afarin, Sara Pope
BACKGROUND: Acromegaly is caused by elevated secretion of human growth hormone, which is frequently because of intracranial tumors. This diagnosis is fairly uncommon with an incidence of 3 to 4 cases per million patients per year. We are presenting a case of acromegaly diagnosed in an active duty Chief Petty Officer. MATERIALS AND METHODS: A 38-year-old male Chief Petty Officer with no previous mental health diagnosis experienced post-traumatic stress disorder (PTSD)-like symptoms in early 2012 after deploying to Iraq and Afghanistan from 2010 to 2011...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28810997/cutaneous-leishmaniasis-in-a-saudi-arabian-soldier-stationed-in-the-united-states
#17
Kelly Laurent, Jason Susong, Eric Fillman, Simon Ritchie
BACKGROUND: Leishmaniasis is a common parasitic disease seen in many parts of the world, especially in areas where current U.S. and international forces are deployed. Approximately 350 million people are thought to be at risk of cutaneous leishmaniasis (CL) with an annual incidence of 1.5 million cases. Over 90% of cutaneous infections with Leishmania occur in the Middle East, Brazil, and Peru. Outbreaks of CL may occur in military personnel deployed to endemic areas. Since the incubation period for symptomatic CL ranges from weeks to months, symptoms may not appear until well after returning to the United States...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28809743/outcomes-for-cirrhotic-patients-with-hepatitis-c-virus-1b-treated-with-asunaprevir-and-daclatasvir-combination
#18
Akihiro Tamori, Hoang Hai, Sawako Uchida-Kobayashi, Masaru Enomoto, Ritsuzo Kozuka, Hiroyuki Motoyama, Etsushi Kawamura, Atsushi Hagihara, Yuga Teranishi, Kanako Yoshida, Hiroyasu Morikawa, Yoshiki Murakami, Norifumi Kawada
BACKGROUND: The efficacy and safety of asunaprevir + daclatasvir combination therapy for treatment of hepatitis C virus (HCV) in compensated cirrhotic patients was not fully evaluated in real-world. Outcomes were assessed in cirrhotic patients with sustained viral response (SVR). MATERIAL AND METHODS: A total of 145 patients without resistance-associated substitutions (RASs) at L31 and Y93 in the nonstructural protein 5A of HCV genotype 1b, consisting of 49 hepatic cirrhotic and 96 non-cirrhotic patients, were enrolled to the therapy...
August 8, 2017: Annals of Hepatology
https://www.readbyqxmd.com/read/28807599/relationship-of-the-patient-specific-functional-scale-to-commonly-used-clinical-measures-in-hand-osteoarthritis
#19
Heidi Hermann Wright, Virginia O'Brien, Kristin Valdes, Barbra Koczan, Joy MacDermid, Elizabeth Moore, Margaret A Finley
STUDY DESIGN: Prospective cohort correlation study. INTRODUCTION: There is no known published research on correlations between the Patient-Specific Functional Scale (PSFS), hand grip strength, and the Disability of the Arm, Shoulder and Hand (DASH) in a population with hand osteoarthritis (OA). PURPOSE: The purpose of this study is to establish reliability of the PSFS and to evaluate the relationship between the PSFS, hand grip strength, and the DASH for a population with hand OA...
August 11, 2017: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/28807598/effectiveness-of-edema-management-techniques-for-subacute-hand-edema-a-systematic-review
#20
Leanne K Miller, Christina Jerosch-Herold, Lee Shepstone
STUDY DESIGN: Systematic review. INTRODUCTION: Prolonged hand edema can have detrimental effects on range of motion and function. There is no consensus on how best to manage traumatic subacute edema. This is the first systematic review which examines the clinical effectiveness of edema treatments on hand volume. PURPOSE OF THE STUDY: The purpose of this systematic review was to examine the evidence of effectiveness of treatments for sub-acute hand edema...
August 11, 2017: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
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