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https://www.readbyqxmd.com/read/29023548/comparison-of-six-electromyography-acquisition-setups-on-hand-movement-classification-tasks
#1
Stefano Pizzolato, Luca Tagliapietra, Matteo Cognolato, Monica Reggiani, Henning Müller, Manfredo Atzori
Hand prostheses controlled by surface electromyography are promising due to the non-invasive approach and the control capabilities offered by machine learning. Nevertheless, dexterous prostheses are still scarcely spread due to control difficulties, low robustness and often prohibitive costs. Several sEMG acquisition setups are now available, ranging in terms of costs between a few hundred and several thousand dollars. The objective of this paper is the relative comparison of six acquisition setups on an identical hand movement classification task, in order to help the researchers to choose the proper acquisition setup for their requirements...
2017: PloS One
https://www.readbyqxmd.com/read/29023449/network-propagation-in-the-cytoscape-cyberinfrastructure
#2
Daniel E Carlin, Barry Demchak, Dexter Pratt, Eric Sage, Trey Ideker
Network propagation is an important and widely used algorithm in systems biology, with applications in protein function prediction, disease gene prioritization, and patient stratification. However, up to this point it has required significant expertise to run. Here we extend the popular network analysis program Cytoscape to perform network propagation as an integrated function. Such integration greatly increases the access to network propagation by putting it in the hands of biologists and linking it to the many other types of network analysis and visualization available through Cytoscape...
October 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28994796/the-knob-supination-task-a-semi-automated-method-for-assessing-forelimb-function-in-rats
#3
Samuel D Butensky, Thelma Bethea, Joshua Santos, Anil Sindhurakar, Eric Meyers, Andrew M Sloan, Robert L Rennaker, Jason B Carmel
Tasks that accurately measure dexterity in animal models are critical to understand hand function. Current rat behavioral tasks that measure dexterity largely use video analysis of reaching or food manipulation. While these tasks are easy to implement and are robust across disease models, they are subjective and laborious for the experimenter. Automating traditional tasks or creating new automated tasks can make the tasks more efficient, objective, and quantitative. Since rats are less dexterous than primates, central nervous system (CNS) injury produces more subtle deficits in dexterity, however, supination is highly affected in rodents and crucial to hand function in primates...
September 28, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28990958/chronic-obstructive-pulmonary-disease-in-the-long-term-care-setting-current-practices-challenges-and-unmet-needs
#4
Manuel Suarez-Barcelo, Joseph L Micca, Sharon Clackum, Gary T Ferguson
: Chronic obstructive pulmonary disease (COPD) is a prevalent and disabling disorder in the United States, especially affecting older individuals, women, and those with a history of smoking. Studies show that COPD may be underrepresented, underdiagnosed, and undertreated in elderly patients residing in long-term care (LTC) facilities. The quality of care for LTC residents with COPD is heterogeneous in regard to both the facility and the patient. For LTC facilities, care should be driven by staff education, interstaff communication, and interfacility communication...
November 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/28984619/the-therapeutic-use-of-non-invasive-brain-stimulation-in-multiple-sclerosis-a-review
#5
Rosa Iodice, Fiore Manganelli, Raffaele Dubbioso
BACKGROUND: Multiple sclerosis (MS) is an inflammatory demyelinating disease of the central nervous system and a leading cause of disability in young adults. Many disabling symptoms in MS, such as spasticity, pain, depression and cognitive deficits are not fully controlled by drug treatment. Non-invasive brain stimulation (NIBS) techniques can be used as tools for modulating altered cortical excitability and plasticity MS patients, providing an improvement in disabling symptoms affecting such patients...
2017: Restorative Neurology and Neuroscience
https://www.readbyqxmd.com/read/28983276/compromised-motor-dexterity-confounds-processing-speed-task-outcomes-in-stroke-patients
#6
Essie Low, Sheila Gillard Crewther, Ben Ong, Diana Perre, Tissa Wijeratne
Most conventional measures of information processing speed require motor responses to facilitate performance. However, although not often addressed clinically, motor impairment, whether due to age or acquired brain injury, would be expected to confound the outcome measure of such tasks. The current study recruited 29 patients (20 stroke and 9 transient ischemic attack) with documented reduction in dexterity of the dominant hand, and 29 controls, to investigate the extent to which 3 commonly used processing speed measures with varying motor demands (a Visuo-Motor Reaction Time task, and the Wechsler Adult Intelligence Scale-IV Symbol Search and Coding subtests) may be measuring motor-related speed more so than cognitive speed...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28972191/effects-of-acute-intermittent-hypoxia-on-hand-use-after-spinal-cord-trauma-a-preliminary-study
#7
Randy D Trumbower, Heather B Hayes, Gordon S Mitchell, Steven L Wolf, Victoria A Stahl
OBJECTIVE: To test the hypothesis that daily acute intermittent hypoxia (AIH) combined with hand opening practice improves hand dexterity, function, and maximum hand opening in persons with chronic, motor-incomplete, cervical spinal cord injury. METHODS: Six participants completed the double-blind, crossover study. Participants received daily (5 consecutive days) AIH (15 episodes per day: 1.5 minutes of fraction of inspired oxygen [FIo2] = 0.09, 1-minute normoxic intervals) followed by 20 repetitions of hand opening practice and normoxia (sham, FIo2 = 0...
September 29, 2017: Neurology
https://www.readbyqxmd.com/read/28961467/in-vivo-measurement-of-bone-manganese-and-association-with-manual-dexterity-a-pilot-study
#8
Ellen M Wells, Yingzi Liu, Danelle Rolle-McFarland, Farshad Mostafaei, Wei Zheng, Linda H Nie
We used neutron activation analysis (NAA) to measure hand bone manganese (BnMn) in 19 adult males. Median BnMn was 0.89µg/g dry bone (interquartile range = 1.07). After adjustment for age and occupation, higher ln(BnMn) was significantly associated with lower manual dexterity based on the Purdue Pegboard assembly task: β = -1.77, standard error = 0.79, p = 0.04. Due to the small sample size, these results should be interpreted cautiously. BnMn appears to be a promising biomarker, and should be further studied...
September 26, 2017: Environmental Research
https://www.readbyqxmd.com/read/28954791/mii-vitalise-a-pilot-randomised-controlled-trial-of-a-home-gaming-system-nintendo-wii-to-increase-activity-levels-vitality-and-well-being-in-people-with-multiple-sclerosis
#9
Sarah Thomas, Louise Fazakarley, Peter W Thomas, Sarah Collyer, Sarah Brenton, Steve Perring, Rebecca Scott, Fern Thomas, Charlotte Thomas, Kelly Jones, Jo Hickson, Charles Hillier
OBJECTIVES: While the health and well-being benefits of physical activity are recognised, people with multiple sclerosis (MS) often face greater barriers than the general population. The Nintendo Wii potentially offers a fun, convenient way of overcoming some of these. The aim was to test the feasibility of conducting a definitive trial of the effectiveness and cost-effectiveness of Mii-vitaliSe; a home-based, physiotherapist-supported Nintendo Wii intervention. DESIGN: A single-centre wait-list randomised controlled study...
September 27, 2017: BMJ Open
https://www.readbyqxmd.com/read/28946577/effect-of-task-specific-training-and-wrist-fingers-extension-splint-on-hand-joints-range-of-motion-and-function-after-stroke
#10
Mohamed E Khallaf, Mariam A Ameer, Eman E Fayed
BACKGROUND: Most stroke patients experience hand impairments that can result in persistent limitations in daily activities. OBJECTIVE: This study aimed at estimating the immediate and retention effects of task specific training and wrist/fingers extension splint on hand joints range of motion and function after stroke. METHODS: Twenty-four right handed patients with first ever stroke represented the sample of the study. The participants were randomly assigned into two equal groups...
September 16, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28946514/upper-limb-motor-and-sensory-function-in-patients-with-hip-fracture-comparison-with-community-dwelling-older-adults
#11
Hiroyuki Hayashi, Daiki Nakashima, Hiroka Matsuoka, Midori Iwai, Shugo Nakamura, Ayumi Kubo, Naoki Tomiyama
BACKGROUND: Upper-limb function is important in patients with hip fracture so they can perform activities of daily living and participate in leisure activities. Upper-limb function of these patients, however, has not been thoroughly investigated. OBJECTIVE: The aim of this study was to evaluate the upper-limb motor and sensory functions in patients with hip fracture by comparing these functions with those of community-dwelling older adults (control group). METHODS: We compared the results of motor and sensory function tests of upper-limb function - range of motion, strength, sensibility, finger dexterity, comprehensive hand function - between patients with hip fracture (n= 32) and the control group (n= 32)...
June 12, 2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/28941286/manual-function-and-performance-in-humans-gorillas-and-orangutans-during-the-same-tool-use-task
#12
Ameline Bardo, Raphaël Cornette, Antony Borel, Emmanuelle Pouydebat
OBJECTIVES: Humans are known to possess more complex manual abilities than other primates. However, the manual abilities of primates have not been fully explored, and we still do not know if the manipulative abilities we attribute to humans are unique. The aim of this study was to compare the manual function and performance developed by humans, gorillas and orangutans while performing the same experimental tool use task. MATERIALS AND METHODS: The study was conducted on 20 humans, 6 gorillas, and 7 orangutans...
September 23, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28932001/the-effects-of-vibratory-stimulation-employed-to-forearm-and-arm-flexor-muscles-on-upper-limb-function-in-patients-with-chronic-stroke
#13
Sang-Mi Jung
[Purpose] The purpose of this study was to investigate not only the effects of stimulatory vibration but also the retained effects 2 weeks after the last session of the intervention. [Subjects and Methods] Ten subjects with post-stroke hemiplegia were recruited in this study. The experimental group (EG) received vibratory stimulation for 30 minutes in each session, three times a week for 2 weeks. Grip strength (GS), box-and-block test (BBT), and Weinstein monofilament were used to assess hand strength, dexterity, and sensory in the affected hand, respectively...
September 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28914409/evaluation-of-contactless-human-machine-interface-for-robotic-surgical-training
#14
Fabien Despinoy, Nabil Zemiti, Germain Forestier, Alonso Sánchez, Pierre Jannin, Philippe Poignet
PURPOSE: Teleoperated robotic systems are nowadays routinely used for specific interventions. Benefits of robotic training courses have already been acknowledged by the community since manipulation of such systems requires dedicated training. However, robotic surgical simulators remain expensive and require a dedicated human-machine interface. METHODS: We present a low-cost contactless optical sensor, the Leap Motion, as a novel control device to manipulate the RAVEN-II robot...
September 15, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28901660/local-steroid-injection-versus-wrist-splinting-for-carpal-tunnel-syndrome-a-randomized-clinical-trial
#15
Ho So, Vincent C H Chung, Joseph C K Cheng, Ronald M L Yip
AIM: We conducted a prospective randomized parallel clinical trial comparing the efficacy of local steroid injection and nocturnal wrist splinting in patients with carpal tunnel syndrome (CTS). METHODS: The well-validated and disease-specific Boston Carpal Tunnel Questionnaire (BCTQ) was employed and its score at 4 weeks after treatment was used as the primary outcome measure. Important secondary outcomes included patient satisfaction, the change of an objective finger dexterity test and the side effects...
September 13, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28900393/postural-hand-synergies-during-environmental-constraint-exploitation
#16
Cosimo Della Santina, Matteo Bianchi, Giuseppe Averta, Simone Ciotti, Visar Arapi, Simone Fani, Edoardo Battaglia, Manuel Giuseppe Catalano, Marco Santello, Antonio Bicchi
Humans are able to intuitively exploit the shape of an object and environmental constraints to achieve stable grasps and perform dexterous manipulations. In doing that, a vast range of kinematic strategies can be observed. However, in this work we formulate the hypothesis that such ability can be described in terms of a synergistic behavior in the generation of hand postures, i.e., using a reduced set of commonly used kinematic patterns. This is in analogy with previous studies showing the presence of such behavior in different tasks, such as grasping...
2017: Frontiers in Neurorobotics
https://www.readbyqxmd.com/read/28893422/the-brain-is-needed-to-cure-spinal-cord-injury
#17
REVIEW
Tadashi Isa
Damage to corticospinal fibers in the cervical spinal cord is known to impair dexterous hand movements. However, accumulating evidence has shown that precision grip can recover considerably through rehabilitative training. Recent multidisciplinary studies have revealed that, at the spinal level, this recovery is possible due to an indirect neural pathway through propriospinal neurons (PNs), which relay cortical commands to hand motoneurons. Although this indirect spinal pathway is heavily involved in recovery, its role is dwarfed by a simultaneous large-scale network reorganization spanning motor-related cortices and mesolimbic structures...
October 2017: Trends in Neurosciences
https://www.readbyqxmd.com/read/28892186/investigating-the-impact-of-innate-dexterity-skills-and-visuospatial-aptitude-on-the-performance-of-baseline-laparoscopic-skills-in-veterinary-students
#18
Mathew R A MacCormick, Jessica J Kilkenny, Meagan Walker, Alex Zur Linden, Ameet Singh
OBJECTIVE: To determine if manual dexterity and visuospatial skills can be used to predict baseline laparoscopic surgery skills in veterinary students. STUDY DESIGN: Pilot study. METHODS: Veterinary students (n = 45) from years 1-4 volunteered for this study. An hour-long electronic questionnaire was completed by participants. The first section was used to collect demographics and information about prior nonsurgical experiences. The second section included 3 tests of visuospatial skills, including the Purdue Visualization of Rotations Test, Mental Rotations Test, and Raven's Advanced Progressive Matrices Test...
September 11, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28890033/the-wada-test-might-predict-postoperative-fine-finger-motor-deficit-after-hemispherotomy
#19
Ayataka Fujimoto, Tohru Okanishi, Mitsuyo Nishimura, Sotaro Kanai, Keishiro Sato, Hideo Enoki
INTRODUCTION: Cerebral hemispherotomy is a surgical method with a high rate of seizure reduction in patients with intractable epilepsy. However, there is a probability of postoperative motor deficits. The objective of this study was to investigate whether the Wada test can help predict motor function outcomes after hemispherotomy and, therefore, may be useful in decision-making and patient selection. PATIENTS AND METHOD: A total of 13 patients with hemispherical intractable epilepsy underwent hemispherical disconnection surgeries...
November 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28880183/gaussian-process-autoregression-for-simultaneous-proportional-multi-modal-prosthetic-control-with-natural-hand-kinematics
#20
Michele Xiloyannis, Constantinos Gavriel, Andreas A C Thomik, A Aldo Faisal
Matching the dexterity, versatility and robustness of the human hand is still an unachieved goal in bionics, robotics and neural engineering. A major limitation for hand prosthetics lies in the challenges of reliably decoding user intention from muscle signals when controlling complex robotic hands. Most of the commercially available prosthetic hands use musclerelated signals to decode a finite number of predefined motions and some offer proportional control of open/close movements of the whole hand. Here, in contrast, we aim to offer users flexible control of individual joints of their artificial hand...
August 31, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
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