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hand dexterity

Akiko Hanai, Hiroshi Ishiguro, Takashi Sozu, Moe Tsuda, Ikuko Yano, Takayuki Nakagawa, Satoshi Imai, Yoko Hamabe, Masakazu Toi, Hidenori Arai, Tadao Tsuboyama
Background: Chemotherapy-induced peripheral neuropathy (CIPN) is a dose-limiting and disabling side effect of taxane anticancer agents. We prospectively evaluated the efficacy of cryotherapy for CIPN prevention. Methods: Breast cancer patients treated weekly with paclitaxel (80 mg/m2 for one hour) wore frozen gloves and socks on the dominant side for 90 minutes, including the entire duration of drug infusion. Symptoms on the treated sides were compared with those on the untreated (nondominant) sides...
February 1, 2018: Journal of the National Cancer Institute
Sergio Figueiredo, Ana Daniela Pereira, Marta Santos Silva, Luciana Leite, Graça Costa, Cesar Silva
Objective: Evaluation of rheumatoid hand-associated metacarpophalangeal joint silicone arthroplasty most often relies on functional scores alone. This study aimed to understand the correlation between perceived and observed function, strength, and alignment. Methods: Cross-sectional study including all 11 women (15 hands) submitted to second to fifth metacarpophalangeal joint arthroplasty due to rheumatoid arthritis involvement for a time period of seven years. Measurements relied on the Michigan Hand Outcomes Questionnaire, Lafayette Purdue Pegboard, pinch and grip strength, and analysis of a lateral "OK-sign" X-ray view...
March 2018: Revista Brasileira de Ortopedia
Randy W Loftus, Franklin Dexter, Alysha D M Robinson
BACKGROUND: Increased awareness of the epidemiology of transmission of pathogenic bacterial strain characteristics may help to improve compliance with intraoperative infection control measures. Our aim was to characterize the epidemiology of intraoperative transmission of high-risk Staphylococcus aureus sequence types (STs). METHODS: S aureus isolates collected from 3 academic medical centers underwent whole cell genome analysis, analytical profile indexing, and biofilm absorbance...
June 12, 2018: American Journal of Infection Control
Jen Rowson, Alaster Yoxall, Victor Gonzalez
The aim of this study was to characterize the muscle activation patterns which underlie the performance of two commonly used grasping patterns and compare the characteristics of such patterns during dexterity tests and activities of daily living. EMG of flexor digitorum and extensor digitorum were monitored from 6 healthy participants as they performed three tasks related to activities of daily living (picking up a coin, drinking from a cup, feeding with a spoon) and three dexterity tests (Variable Dexterity Test-Precision, Variable Dexterity Test-Cylinder, Purdue Pegboard Test)...
2018: Frontiers in Bioengineering and Biotechnology
Krishnakumar Thankappan, Subramania Iyer
Robotic surgery has been successfully used for many surgical indications in head and neck surgery. Robotic thyroidectomy is getting accepted worldwide, but the majority of the literature is from South Korea. The purpose of the paper is to review and give a personal perspective on how a robotic thyroidectomy program was initiated in a tertiary care academic medical institution in India. Advantages of robotic approaches are the three-dimensional visualization, precision, dexterity, and surgeon ergonomics. Cost is an important concern...
June 2018: Indian Journal of Surgical Oncology
I Imbinto, F Montagnani, M Bacchereti, C Cipriani, A Davalli, R Sacchetti, E Gruppioni, S Castellano, M Controzzi
Partial hand amputation is by far the most common type of amputation worldwide. Nevertheless, regardless of their potential clinical and socioeconomic impact, battery-powered partial hand prostheses, namely, powered digits, have modestly progressed so far, and very few clinical solutions are available today. Here, we present a mechanical architecture, an alternative to state-of-the-art solutions, which exploits a high efficiency, non-back drivable mechanical transmission based on a face-gear pair and a miniaturized clutch...
June 2018: IEEE Transactions on Neural Systems and Rehabilitation Engineering
Steven Morrison, Cortney N Armitano, C Teal Raffaele, Stephen I Deutsch, Serina A Neumann, Hope Caracci, Maria R Urbano
Autism spectrum disorder (ASD) is a common neurodevelopmental disorder, whose core symptom domains include impaired social communication and narrowed interests and/or repetitive behaviors; in addition, deficits of general cognition, neuromotor function, and movement ability can be observed. This study was designed to examine differences in neuromotor and cognitive functions for a group of young adults with ASD and age-matched controls. It was also of interest to assess whether changes in the intra-individual variability (IIV) of these selected neuromotor and cognitive tasks also occurred...
June 6, 2018: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
Allyson C Rosen, Salil Soman, Jyoti Bhat, Angela R Laird, Jeffrey Stephens, Simon B Eickhoff, P Mickle Fox, Becky Long, David Dinishak, Mario Ortega, Barton Lane, Max Wintermark, Elizabeth Hitchner, Wei Zhou
Carotid revascularization (endarterectomy, stenting) prevents stroke; however, procedure-related embolization is common and results in small brain lesions easily identified by diffusion weighted magnetic resonance imaging (DWI). A crucial barrier to understanding the clinical significance of these lesions has been the lack of a statistical approach to identify vulnerable brain areas. The problem is that the lesions are small, numerous, and non-overlapping. Here we address this problem with a new method, the Convergence Analysis of Micro-Lesions (CAML) technique, an extension of the Anatomic Likelihood Analysis (ALE)...
2018: NeuroImage: Clinical
Yinsheng Tian, Haibo Zhang, Li Wang, Li Ding, Deyu Li
Hand dexterity is an important index to assess whether extravehicular activity (EVA) gloves are appropriately designed. Pressurized gloves and low temperature environments can both cause a decrease in hand dexterity. However, due to the difficulty in performing tests under extreme conditions, there has been no report on dexterity tests with gloves under pressure and low temperature. To fill this gap, we performed a dexterity test of EVA gloves with twelve male volunteers involved under the extreme conditions, which were created in the low-pressure simulation cabin with vaporized liquid nitrogen used to cool it down...
July 2018: Applied Ergonomics
Nolwenn Guedin, Joel Fluss, Catherine Thevenot
Both hand and finger sensory perception and motor abilities are essential for the development of skilled gestures and efficient bimanual coordination. While finger dexterity and finger sensory perception can be impaired in children with cerebral palsy (CP), the relationship between these two functions in this population is not clearly established. The common assumption that CP children with better sensory function also demonstrate better motor outcomes has been recently challenged. To study these questions further, we assessed both finger dexterity and finger gnosia, the ability to perceive one's own fingers by touch, in groups of 11 children with unilateral (i...
January 1, 2018: Perceptual and Motor Skills
Ákos Jobbágy, Anikó Rita Marik, Gábor Fazekas
This paper introduces a smart nine-hole peg tester (s-9HPT), which comprises a standard nine-hole peg test pegboard, but with light-emitting diodes (LEDs) next to each hole. The s-9HPT still supports the traditional nine-hole peg test operating mode, in which the order of the peg placement and removal can be freely chosen. Considering this, the s-9HPT was used in lab research to analyze the traditional procedure and possible new procedures. As this analysis required subjects with similar levels of dexterity, measurement data from 16 healthy subjects (seven females, nine males, 25-80 years old) were used...
2018: Journal of Healthcare Engineering
Mariagiovanna Cantone, Maria A Catalano, Giuseppe Lanza, Gaetano La Delfa, Raffaele Ferri, Manuela Pennisi, Rita Bella, Giovanni Pennisi, Alessia Bramanti
Introduction: The relationship between intellectual disability (ID) and hand motor coordination and speed-accuracy, as well as the effect of aging on fine motor performance in patients with ID, has been previously investigated. However, only a few data are available on the impact of the nonpharmacological interventions in adult patients with long-term hand motor deficit. Methods: Fifty adults with mild ID were enrolled. A group of thirty patients underwent a two-month intensive ergotherapic treatment that included hand motor rehabilitation and visual-perceptual treatment (group A); twenty patients performing conventional motor rehabilitation alone (group B) served as a control group...
2018: Neural Plasticity
Christina M Low Kapalu, John J Hall, Dustin P Wallace
Objective: Chronic pain is associated with school difficulties; however, there is limited published evidence on the cognitive or neuropsychological functioning of youth with chronic pain. Method: When beginning intensive interdisciplinary pain treatment, 94 youth (age = 10-18) with chronic pain completed neuropsychological assessment (e.g., intelligence, academic skills, learning and recall, and attention) and clinical questionnaires (e.g., pain and physical and psychological functioning)...
May 25, 2018: Journal of Pediatric Psychology
Alberto Mangano, Valentina Valle, Eduardo Fernandes, Roberto Bustos, Federico Gheza, Pier C Giulianotti
A still too high percentage of the colorectal resections are currently performed by open technique. This in part because laparoscopy has some technical hurdles: not ideal ergonomics, poor control on the traction exerted by the Assistant, long/steep learning curve, confined dexterity, low tactile feedback, hand-tremor and 2D vision with a not completely stable camera. The robotic approach, given the increased surgical dexterity and the better surgical view, may be used to solve the laparoscopic downsides (in particular in the most complex cases)...
May 25, 2018: Minerva Chirurgica
Geng Yang, Jia Deng, Gaoyang Pang, Hao Zhang, Jiayi Li, Bin Deng, Zhibo Pang, Juan Xu, Mingzhe Jiang, Pasi Liljeberg, Haibo Xie, Huayong Yang
Surface electromyography signal plays an important role in hand function recovery training. In this paper, an IoT-enabled stroke rehabilitation system was introduced which was based on a smart wearable armband (SWA), machine learning (ML) algorithms, and a 3-D printed dexterous robot hand. User comfort is one of the key issues which should be addressed for wearable devices. The SWA was developed by integrating a low-power and tiny-sized IoT sensing device with textile electrodes, which can measure, pre-process, and wirelessly transmit bio-potential signals...
2018: IEEE Journal of Translational Engineering in Health and Medicine
Nathan T Kearns, Jennifer K Peterson, Lisa Smurr Walters, Warren T Jackson, John M Miguelez, Tiffany Ryan
OBJECTIVES: (1) Develop a performance-based measure for adult upper limb (UL) prosthetic functioning through broad (i.e. overall performance) and functional domain-specific (e.g., control skills) assessment of commonplace activities; (2) conduct initial psychometric evaluation of the Capacity Assessment of Prosthetic Performance for the Upper Limb (CAPPFUL). DESIGN: Internal consistency of CAPPFUL and interrater reliability for task, functional domain, and full scale (sub)scores among three independent raters were estimated...
May 16, 2018: Archives of Physical Medicine and Rehabilitation
Caleb A Cooper, Cheuk Fan Shum, Chandru P Sundaram
Partial nephrectomy (PN) is the preferred surgical treatment for T1 renal tumors whenever technically feasible. When properly performed, it allows preservation of nephron mass without compromising oncologic outcomes. This reduces the postoperative risk of renal insufficiency, which translates into better overall survival for the patients. PN can be technically challenging, because it requires the surgeon to complete the tasks of tumor excision, hemostasis and renorrhaphy, all within an ischemic time of preferably below 30 minutes...
May 2018: Journal of Endourology
Mengnan Li, Dingguo Zhang, Yao Chen, Xinyu Chai, Longwen He, Ying Chen, Jinyao Guo, Xiaohong Sui
Tactile sensory feedback would make a significant contribution to the state-of-the-art prosthetic hands for achieving dexterous manipulation over objects. Phantom finger sensation, also called referred sensation of lost fingers, can be noninvasively evoked by transcutaneous electrical nerve stimulation (TENS) of the phantom finger territories (PFTs) near the stump for upper-limb amputees. As such, intuitive sensations pertaining to lost fingers could be non-invasively generated. However, the encoding of stimulation parameters into tactile sensations that can be intuitively interpreted by the users remains a significant challenge...
2018: Frontiers in Neuroscience
Bor-Shing Lin, I-Jung Lee, Shu-Yu Yang, Yi-Chiang Lo, Junghsi Lee, Jean-Lon Chen
Capturing hand motions for hand function evaluations is essential in the medical field. Various data gloves have been developed for rehabilitation and manual dexterity assessments. This study proposed a modular data glove with 9-axis inertial measurement units (IMUs) to obtain static and dynamic parameters during hand function evaluation. A sensor fusion algorithm is used to calculate the range of motion of joints. The data glove is designed to have low cost, easy wearability, and high reliability. Owing to the modular design, the IMU board is independent and extensible and can be used with various microcontrollers to realize more medical applications...
May 13, 2018: Sensors
Alba Motes Rodrigo, Carlos Eduardo Ramirez Torres, Laura Teresa Hernandez Salazar, Matthias Laska
Spider monkeys are interesting to study with regard to hand preferences, as they are one of the few primate species that lack a thumb and, thus, are unable to perform a precision grip. Further, being platyrrhine primates, they also largely lack independent motor control of the digits and, thus, have only limited manual dexterity. It was therefore the aim of the present study to assess hand preferences in black-handed spider monkeys ( Ateles geoffroyi ) in 4 tasks differing in task demand: simple unimanual reaching for food and 3 versions of the widely used tube task, including 2 bimanual versions that differ from each other in the degree of fine motor control needed and a unimanual version that does not require coordinated action of the hands...
May 2018: Journal of Comparative Psychology
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