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https://www.readbyqxmd.com/read/28820146/head-up-heels-down-posture-perfect-ergonomics-for-an-ophthalmologist
#1
EDITORIAL
Santosh G Honavar
No abstract text is available yet for this article.
August 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28817961/evaluating-the-ergonomics-of-flexible-ureteroscopy
#2
Wesley Ludwig, Gyusung I Lee, Justin Bradley Ziemba, Joan S Ko, Brian Matlaga
INTRODUCTION: To date, the ergonomics of flexible ureteroscopy (URS) have not been well described. We performed a study to assess the biomechanical stresses on urologists performing URS and to investigate the effect of ureteroscope type on these parameters. METHODS: Electromyography (EMG) was used to quantify the activation level of muscle groups involved in URS. Surface EMG electrodes (Delsys, Boston, MA) were placed on the right and left thenar, flexor carpi ulnaris (FCU), extensor carpi ulnaris (ECU), biceps, triceps and deltoid...
August 17, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28817353/measuring-mental-workload-with-the-nasa-tlx-needs-to-examine-each-dimension-rather-than-relying-on-the-global-score-an-example-with-driving
#3
Edith Galy, Julie Paxion, Catherine Berthelon
The distinction between several components of mental workload is often made in the ergonomics literature. However, measurements used are often established from a global score, notably with several questionnaires that originally reflect several dimensions. The present study tested the effect of driving situation complexity, experience and subjective levels of tension and alertness on each dimension of the NASA-TLX questionnaire of workload, in order to highlight the potential influence of intrinsic, extraneous and germane load factors...
August 17, 2017: Ergonomics
https://www.readbyqxmd.com/read/28814154/a-low-cost-three-dimensional-laser-surface-scanning-approach-for-defining-body-segment-parameters
#4
Petros Pandis, Anthony Mj Bull
Body segment parameters are used in many different applications in ergonomics as well as in dynamic modelling of the musculoskeletal system. Body segment parameters can be defined using different methods, including techniques that involve time-consuming manual measurements of the human body, used in conjunction with models or equations. In this study, a scanning technique for measuring subject-specific body segment parameters in an easy, fast, accurate and low-cost way was developed and validated. The scanner can obtain the body segment parameters in a single scanning operation, which takes between 8 and 10 s...
August 1, 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28813995/a-novel-human-effort-estimation-method-for-knee-assistive-exoskeletons
#5
Lorenzo Saccares, Anais Brygo, Ioannis Sarakoglou, Nikos G Tsagarakis
In this work we present a novel method to estimate online the torques at the knee joints with the goal to generate reference signals for knee assistive devices. One of the main advantages of the proposed approach is its reduced sensing requirements, which leads to an ergonomic setup with minimal instrumentation, especially above the knee and of the upper body. Indeed, only the measurement of the forces and torques exchanged between the ground and the user's feet, the posture of the shanks, and the model of the user's shank itself are needed for the estimation of the knee torque...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813911/design-and-kinematic-analysis-of-a-novel-upper-limb-exoskeleton-for-rehabilitation-of-stroke-patients
#6
Amin Zeiaee, Rana Soltani-Zarrin, Reza Langari, Reza Tafreshi
This paper details the design process and features of a novel upper limb rehabilitation exoskeleton named CLEVER (Compact, Low-weight, Ergonomic, Virtual/Augmented Reality Enhanced Rehabilitation) ARM. The research effort is focused on designing a lightweight and ergonomic upper-limb rehabilitation exoskeleton capable of producing diverse and perceptually rich training scenarios. To this end, the knowledge available in the literature of rehabilitation robotics is used along with formal conceptual design techniques...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813908/form-and-function-exemplary-analysis-of-the-significance-for-the-design-of-rehabilitation-devices
#7
Johanna Baier, Lisa-Marie Kuchinke, Marc Neumann, Beate Bender
Stroke often leads to motor impairment that could be recovered by extensive training. Multiple devices exist to support the rehabilitation process. Most systems interact directly with the patient and therefore, depend strongly on the ergonomic design which is determined by its form and function. In this work the interdependence of form and function and their particular significance for the development of rehabilitation devices are outlined. As a case study the development of a hand rehabilitation device is presented, where two approaches answering different key questions to focus either on function or form were realized at the same time to generate different concepts...
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
#8
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/28812453/ergonomic-evaluation-of-a-new-truck-seat-design-a-field-study
#9
Michelle Cardoso, Fred Fulton, Colin McKinnon, Jack P Callaghan, Michel J Johnson, Wayne J Albert
A postural evaluation of commercial licensed truck drivers was conducted to determine the ergonomic benefits of a truck seat prototype in comparison to an Industry standard seat. Twenty commercially licensed truck drivers were recruited to perform a 90-min driving task. Postures were assessed using accelerometers and a backrest and seat pan pressure mapping system. Subjective discomfort measurements were monitored using two questionnaires: ratings of perceived discomfort (RPD) and the automotive seating discomfort questionnaire (ASDQ)...
August 16, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/28807488/changes-at-applied-ergonomics
#10
EDITORIAL
Patrick G Dempsey
No abstract text is available yet for this article.
August 11, 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28805644/weak-links-how-colonies-counter-the-social-costs-of-individual-variation-in-thermal-physiology
#11
REVIEW
Kaitlin M Baudier, Sean O'Donnell
Social insect nestmates often differ in thermal tolerance (the range of temperatures at which an individual functions). Worker thermal physiology can covary with body size, development, genetics and gene expression. Because colonies rely on the integration of diverse colony members, individual thermal tolerance differences can affect group performance. The weak link hypothesis states that if workers differ in thermal sensitivity, then in variable thermal environments colonies can incur performance costs due to thermal stress effects on the most thermally sensitive worker types...
August 2017: Current Opinion in Insect Science
https://www.readbyqxmd.com/read/28803980/humoral-immune-response-of-galleria-mellonella-after-repeated-infection-with-bacillus-thuringiensis
#12
Paulina Taszłow, Lidiia Vertyporokh, Iwona Wojda
The insect immune system relies on innate mechanisms only. However, there is an increasing number of data reporting that previous immune challenge with microbial elicitors or a low number of microorganisms can modulate susceptibility after subsequent lethal infection with the same or different pathogen. This phenomenon is called immune priming. Its biochemical and molecular mechanisms remain unravelled. Here we present that Galleria mellonella larvae that survived infection induced by intrahemocelic injection of a low dose of Bacillus thuringiensis were more resistant to re-injection of a lethal dose of the same bacteria but not with other bacteria and fungi tested...
August 10, 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/28803518/a-feminist-intervention-that-hurt-women-biological-differences-ergonomics-and-occupational-health-une-intervention-f%C3%A3-ministe-qui-a-nui-aux-femmes-diff%C3%A3-rences-biologiques-%C3%A3-galit%C3%A3-ergonomie-et-sant%C3%A3-au-travail
#13
Karen Messing
The University of Québec in Montréal has agreements with trade unions providing access to university resources. Researchers involved in this program worked in partnership with union women's and health and safety committees for more than twenty years. Not all studies succeeded in improving women's working conditions. One joint project involved observational studies of tasks done by health-care workers, complemented by interviews and questionnaires. We found that task assignments, movements, postures, and work-related musculoskeletal disorders varied by gender/sex and made recommendations for change...
January 1, 2017: New Solutions: a Journal of Environmental and Occupational Health Policy: NS
https://www.readbyqxmd.com/read/28802445/the-dibber-designing-a-standardised-handheld-tool-for-lay-up-tasks
#14
Helene Jones, Anne Roudaut, Anna Chatzimichali, Kevin Potter, Carwyn Ward
We present an application of engineering and ergonomics principles in the design of a standardised tool, The Dibber, which is a tool with multiple geometric features to fit the diversity of lay-up tasks used in the composites industry. The Dibber is the result of a design process, which consists of a series of observations and prototyping to extract geometric requirements for lay-up tasks. To demonstrate that it is possible to design a standardised tool prototypes of the Dibber were distributed and 91 participants gave feedback...
November 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28802430/digital-analogue-or-redundant-speedometers-for-truck-driving-impact-on-visual-distraction-efficiency-and-usability
#15
Mathilde François, Philippe Crave, François Osiurak, Alexandra Fort, Jordan Navarro
Existing literature does not draw conclusions as to which speedometer type is better for truck driving. A digital speedometer would be more beneficial when obtaining absolute and relative readings, while an analogue speedometer would be more efficient and less distracting when detecting dynamic speed changes. Redundant speedometers, which simultaneously present digital and analogue speedometers, appear increasingly in vehicles, but no information is available on their ergonomic qualities. This study compared three speedometers: digital speedometers, analogue speedometers, and redundant speedometers...
November 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28800353/how-do-users-design-the-case-of-sugar-cane-harvester-machines
#16
Lidiane Regina Narimoto, João Alberto Camarotto
BACKGROUND: Design in use and inventiveness are key concepts in ergonomics. It is well-known that users design but is not explored in the literature how they manage to do that. OBJECTIVE: This paper aims to contribute to the discussion of how users actually design, by showing a research conducted in sugar cane harvesting in Brazil and in Australia. METHODS: Through the methodology of the Ergonomic Work Analysis (EWA), the design modifications made by the harvesting teams were identified as well as their elaboration process...
2017: Work: a Journal of Prevention, Assessment, and Rehabilitation
https://www.readbyqxmd.com/read/28795115/application-of-a-mathematical-model-for-ergonomics-in-lean-manufacturing
#17
Lucia Botti, Cristina Mora, Alberto Regattieri
The data presented in this article are related to the research article "Integrating ergonomics and lean manufacturing principles in a hybrid assembly line" (Botti et al., 2017) [1]. The results refer to the application of the mathematical model for the design of lean processes in hybrid assembly lines, meeting both the lean principles and the ergonomic requirements for safe assembly work. Data show that the success of a lean strategy is possible when ergonomics of workers is a parameter of the assembly process design...
October 2017: Data in Brief
https://www.readbyqxmd.com/read/28794585/current-status-of-robotic-single-port-surgery
#18
REVIEW
Ryan J Nelson, Jaya Sai S Chavali, Nitin Yerram, Paurush Babbar, Jihad H Kaouk
Robotic-assisted laparoscopic surgery in urology is an ever progressing field, and boundaries are constantly broken with the aid of new technology. Advancements in instrumentation have given birth to the era of robotic laparoendoscopic single-site technique (R-LESS). R-LESS however, has not gained widespread acceptance due to technical hurdles such as adequate triangulation, robotic arm clashing, decreased access for the bedside assistant, lack of wrist articulation, continued need for an axillary/accessory port, lack of robust retraction, and ergonomic discomfort...
July 2017: Urology Annals
https://www.readbyqxmd.com/read/28793951/changes-in-surgical-team-performance-and-safety-climate-attitudes-following-expansion-of-perioperative-services-a-repeated-measures-study
#19
Brigid M Gillespie, Emma Harbeck, Evelyn Kang, Catherine Steel, Nicole Fairweather, Wendy Chaboyer
Objective The aim of the present study was to describe process changes in surgical team performance and team members' attitudes to safety culture following hospital relocation and expansion of perioperative services.Methods The study was a naturalistic study using structured observations and surveys to assess non-technical skills (NTS; i.e. communication, teamwork, situational awareness, decision making and leadership) in surgery. This interrupted time series design used mixed-linear regression models to examine the effect of phase (before and after hospital relocation) on surgical teams' NTS and their processes that may affect performance...
August 10, 2017: Australian Health Review: a Publication of the Australian Hospital Association
https://www.readbyqxmd.com/read/28783375/errors-using-observational-methods-for-ergonomics-assessment-in-real-practice
#20
Jose-Antonio Diego-Mas, Jorge Alcaide-Marzal, Rocio Poveda-Bautista
OBJECTIVE: The degree in which practitioners use the observational methods for musculoskeletal disorder risks assessment correctly was evaluated. BACKGROUND: Ergonomics assessment is a key issue for the prevention and reduction of work-related musculoskeletal disorders in workplaces. Observational assessment methods appear to be better matched to the needs of practitioners than direct measurement methods, and for this reason, they are the most widely used techniques in real work situations...
August 1, 2017: Human Factors
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