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Applied Ergonomics

Sarah Sharples
No abstract text is available yet for this article.
October 17, 2016: Applied Ergonomics
Patrick Waterson, Jean-Christophe Le Coze, Henning Boje Andersen
No abstract text is available yet for this article.
October 17, 2016: Applied Ergonomics
Patrick Waterson, Daniel P Jenkins, Paul M Salmon, Peter Underwood
Throughout Jens Rasmussen's career there has been a continued emphasis on the development of methods, techniques and tools for accident analysis and investigation. In this paper we focus on the evolution and development of one specific example, namely Accimaps and their use for accident analysis. We describe the origins of Accimaps followed by a review of 27 studies which have applied and adapted Accimaps over the period 2000-2015 to a range of domains and types of accident. Aside from demonstrating the versatility and popularity of the method, part of the motivation for the review of the use of Accimaps is to address the question of what constitutes a sound, usable, valid and reliable approach to systemic accident analysis...
September 19, 2016: Applied Ergonomics
Samuel Lee, Young Bo Moh, Maryam Tabibzadeh, Najmedin Meshkati
This study applies the AcciMap methodology, which was originally proposed by Professor Jens Rasmussen (1997), to the analysis of the tragic Sewol Ferry accident in South Korea on April 16, 2014, which killed 304 mostly young people and is considered as a national disaster in that country. This graphical representation, by incorporating associated socio-technical factors into an integrated framework, provides a big-picture to illustrate the context in which an accident occurred as well as the interactions between different levels of the studied system that resulted in that event...
August 13, 2016: Applied Ergonomics
Dohyung Kee, Gyuchan Thomas Jun, Patrick Waterson, Roger Haslam
The South Korea Sewol ferry accident in April 2014 claimed the lives of over 300 passengers and led to criminal charges of 399 personnel concerned including imprisonment of 154 of them as of Oct 2014. Blame and punishment culture can be prevalent in a more hierarchical society like South Korea as shown in the aftermath of this disaster. This study aims to analyse the South Korea ferry accident using Rasmussen's risk management framework and the associated AcciMap technique and to propose recommendations drawn from an AcciMap-based focus group with systems safety experts...
August 12, 2016: Applied Ergonomics
Bassam Hasanain, Andrew D Boyd, Judy Edworthy, Matthew L Bolton
The failure of humans to respond to auditory medical alarms has resulted in numerous patient injuries and deaths and is thus a major safety concern. A relatively understudied source of response failures has to do with simultaneous masking, a condition where concurrent sounds interact in ways that make one or more of them imperceptible due to physical limitations of human perception. This paper presents a method, which builds on a previous implementation, that uses a novel combination of psychophysical modeling and formal verification with model checking to detect masking in a modeled configuration of medical alarms...
January 2017: Applied Ergonomics
Charlotte Diana Nørregaard Rasmussen, Naja Klærke Lindberg, Marie Højbjerg Ravn, Marie Birk Jørgensen, Karen Søgaard, Andreas Holtermann
This study aimed to investigate the processes of a participatory ergonomics program among 594 eldercare workers with emphasis on identified risk factors for low back pain and solutions, and reveal barriers and facilitators for implementation. Sixty-nine per cent of the identified risk factors were physical ergonomic, 24% were organisational and 7% were psychosocial risk factors. Most solutions were organisational (55%), followed by physical (43%) and psychosocial solutions (2%). Internal factors (e.g. team or management) constituted 47% of the barriers and 75% of the facilitators...
January 2017: Applied Ergonomics
David I Douphrate, David Gimeno Ruiz de Porras, Matthew W Nonnenmann, Robert Hagevoort, Stephen J Reynolds, Anabel Rodriguez, Nathan B Fethke
BACKGROUND: Large-herd dairy parlor workers experience a high prevalence of musculoskeletal symptoms in the upper extremity. The purpose of this study was to evaluate the effect of milking unit design on upper extremity muscle activity during milking unit attachment. METHODS: Upper extremity muscle activity was recorded among U.S. large-herd parlor workers (n=11) using surface electromyography. Participants performed several milking unit attachment cycles with each of six milking unit designs...
January 2017: Applied Ergonomics
Juergen Sauer, Alain Chavaillaz
This experiment aimed to examine how skill lay-off and system reliability would affect operator behaviour in a simulated work environment under wide-range and large-choice adaptable automation comprising six different levels. Twenty-four participants were tested twice during a 2-hr testing session, with the second session taking place 8 months after the first. In the middle of the second testing session, system reliability changed. The results showed that after the retention interval trust increased and self-confidence decreased...
January 2017: Applied Ergonomics
Sukru Karali, Neil J Mansfield, Diane E Gyi
The population of older people continues to increase around the world, and this trend is expected to continue; the population of older drivers is increasing accordingly. January 2012 figures from the DVLA in the UK stated that there were more than 15 million drivers aged over 60; more than 1 million drivers were aged over 80. There is a need for specific research tools to understand and capture how all users interact with features in the vehicle cabin e.g. controls and tasks, including the specific needs of the increasingly older driving population...
January 2017: Applied Ergonomics
Scott R Walter, Magdalena Z Raban, William T M Dunsmuir, Heather E Douglas, Johanna I Westbrook
An observational workflow time study was conducted involving doctors in the emergency department (ED) of a large Australian hospital. During 121.7 h across 58 sessions, we observed interruptive events, conceptualised as prompts, and doctors' strategies to handle those prompts (task-switching, multitasking, acknowledgement, deferral and deflection) to assess the role of multiple work system factors influencing doctors' work in the ED. Prompt rates varied vastly between work scenarios, being highest during non-verbal solo tasks...
January 2017: Applied Ergonomics
Anja Kraneburg, Steffen Franke, Ralf Methling, Barbara Griefahn
UNLABELLED: We studied the influence of correlated color temperature (CCT) of 7 polychromatic white light illuminations (1600 K-14,000 K, 200 lx) in two experiments. Visual performance was tested in 17 students (8 men) during daytime. Visual acuity, contrast sensitivity and sleepiness did not vary with illuminations but polychromatic white light of <2000 K impaired color discrimination. Melatonin synthesis was tested with weekly intervals in 8 trials from 10pm to 2am (7 polychromatic illuminations and a dim light reference (<0...
January 2017: Applied Ergonomics
Simone Secchi, Antonio Lauria, Gianfranco Cellai
Acoustic wayfinding involves using a variety of auditory cues to create a mental map of the surrounding environment. For blind people, these auditory cues become the primary substitute for visual information in order to understand the features of the spatial context and orient themselves. This can include creating sound waves, such as tapping a cane. This paper reports the results of a research about the "acoustic contrast" parameter between paving materials functioning as a cue and the surrounding or adjacent surface functioning as a background...
January 2017: Applied Ergonomics
Sruthy Orozhiyathumana Agnisarman, Kapil Chalil Madathil, Kevin Smith, Aparna Ashok, Brandon Welch, James T McElligott
At-home telemedicine visits are quickly becoming an acceptable alternative for in-person patient visits. However, little work has been done to understand the usability of these home-based telemedicine solutions. It is critical for user acceptance and real-world applicability to evaluate available telemedicine solutions within the context-specific needs of the users of this technology. To address this need, this study evaluated the usability of four home-based telemedicine software platforms:, Vidyo, VSee, and Polycom...
January 2017: Applied Ergonomics
Christer Ahlstrom, Katja Kircher
While in-vehicle eco-driving support systems have the potential to reduce greenhouse gas emissions and save fuel, they may also distract drivers, especially if the system makes use of a visual interface. The objective of this study is to investigate the visual behaviour of drivers interacting with such a system, implemented on a five-inch screen mounted above the middle console. Ten drivers participated in a real-world, on-road driving study where they drove a route nine times (2 pre-baseline drives, 5 treatment drives, 2 post-baseline drives)...
January 2017: Applied Ergonomics
Deirdre Holly, Vivien Swanson, Philip Cachia, Beverley Beasant, Colville Laird
BACKGROUND: Remote and Rural pre-hospital care practitioners manage serious illness and injury on an unplanned basis, necessitating technical and non-technical skills (NTS). However, no behaviour rating systems currently address NTS within these settings. Informed by health psychology theory, a NTS-specific behaviour rating system was developed for use within pre-hospital care training for remote and rural practitioners. METHOD: The Immediate Medical Care Behaviour Rating System (IMCBRS), was informed by literature, expert advice and review and observation of an Immediate Medical Care (IMC) course...
January 2017: Applied Ergonomics
Steven A Lavender, Shasank Nagavarapu, W Gary Allread
Many retail distribution centers (DCs) manually load and unload boxes into or out of trailers and shipping containers. This study investigated whether an articulating belt conveyor with a height adjustable platform, positioned at the end of an extendable conveyor, significantly reduces shoulder and back muscle loading and the spine kinematics associated with these tasks. Electromyographic and kinematic data were collected from eight volunteer employees as trailers at a shoe DC were unloaded and from nine volunteer employees as trailers at an apparel DC were loaded...
January 2017: Applied Ergonomics
Rosimeire Simprini Padula, Maria Luiza Caires Comper, Emily H Sparer, Jack T Dennerlein
UNLABELLED: To better understand job rotation in the manufacturing industry, we completed a systematic review asking the following questions: 1) How do job-rotation programs impact work-related musculoskeletal disorders (MSDs) and related risk control for these MSDs, as well as psychosocial factors? and 2) How best should the job rotation programs be designed? We searched MEDLINE, EMBASE, Business Source Premier, ISI Web of Knowledge, CINAHL, PsyINFO, Scopus, and SciELO databases for articles published in peer-reviewed journals...
January 2017: Applied Ergonomics
Vitor Carneiro, Ângela Gomes, Bárbara Rangel
In a primary education classroom of any country, children of the same age have very different statures, reaching variations of 200 mm (Gonçalves, 2012). However, the school furniture provided is not suitable or adaptable to these differences. Designing school furniture able to respond to these variations is, therefore, a challenge for ergonomics and design in a global market. It is clearly not viable for industries to adapt productions for each country. When competitiveness and limitation of resources are essential for the viability of any product it becomes essential to find a universal system adapted to the requisites of any country...
January 2017: Applied Ergonomics
Ari Kolbeinsson, Peter Thorvald, Jessica Lindblom
This paper examines how interruptions from information and communications technology systems affect errors and the time to complete tasks for assembly workers. Interruptions have previously been examined in laboratory experiments and office environments, but not much work has been performed in other authentic environments. This paper contains the results of an experiment that was performed in a simulated manufacturing assembly environment, which tested the effects of interruptions on a manual assembly task...
January 2017: Applied Ergonomics
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