3,791 results match your criteria Applied ergonomics[Journal]


Joint moment trade-offs across the upper extremity and trunk during repetitive work.

Appl Ergon 2020 May 16;88:103142. Epub 2020 May 16.

Department of Kinesiology, McMaster University, Hamilton, ON, Canada. Electronic address:

Individuals can coordinate small kinematic changes at several degrees of freedom simultaneously in the presence of fatigue, leaving it unclear how overall biomechanical demands at each joint are altered. The purpose of this study was to evaluate trade-offs in joint moments between the trunk, shoulder, and elbow during repetitive upper extremity work. Participants performed four simulated workplace tasks cyclically until meeting fatigue termination criteria. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103142DOI Listing

Specifying advantages of multi-modal cueing: Quantifying improvements with augmented tactile information.

Appl Ergon 2020 May 16;88:103146. Epub 2020 May 16.

Department of Psychology and Institute for Simulation and Training, University of Central Florida, Orlando, FL, USA.

This work examines how tactile cues, encoded with azimuth and distance information, compare with visual and speech cues on performance and mental workload in a target detection task. Two experiments are reported using a simulated environment in which targets were presented at varying azimuth and distance locations. In the first experiment, participants engaged targets both while stationary and while in motion using tactile, visual, or speech cues. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103146DOI Listing

Awareness of the real-world environment when using augmented reality head-mounted display.

Appl Ergon 2020 May 14;88:103145. Epub 2020 May 14.

VTT Technical Research Centre of Finland Ltd, P.O. Box 1300, Visiokatu 4, 33101, Tampere, Finland.

Augmented reality (AR) systems are becoming common tools in industrial workplaces. However, factory workers are still concerned about whether head-mounted display (HMD)-based AR systems distract their awareness of the environment and therefore pose safety risks. The purpose of this study was to assess users' experience of real-world awareness when using an AR system. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103145DOI Listing

The centrality of workers to sustainability based on values: Exploring ergonomics to introduce new rationalities into decision-making processes.

Appl Ergon 2020 May 16;88:103148. Epub 2020 May 16.

Production Engineering Department, Universidade de São Paulo, Brazil.

This article presents the results of an academic research project connecting the discipline of ergonomics (and work-related issues) with the theme of sustainability. Despite the stated aim of creating value for stakeholders, including employees, companies face difficulties in introducing effective sustainability policies. The research question addressed in this article is the following: How can companies improve their decision-making processes to increase workers' wellbeing using policies integrating issues related to corporate sustainability and ergonomics? Currently, corporate sustainability is focused mainly on the triple bottom line (TBL) concept. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103148DOI Listing

Exploring SEIPS 2.0 as a model for analyzing care transitions across work systems.

Appl Ergon 2020 May 16;88:103141. Epub 2020 May 16.

BerbeeWalsh Department of Emergency Medicine, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA. Electronic address:

Care transitions across healthcare settings, specifically between the emergency department (ED) and the home, are pervasive among older adults, and represent persistent healthcare quality and safety challenges. Care transitions cross multiple distinct work systems, representing a conceptual and methodological challenge for the field of Human Factors/Ergonomics - how to analyze a process that occurs across multiple work systems. As an initial step in determining how to study care transitions across work systems, we applied the Systems Engineering Initiative for Patient Safety (SEIPS) 2. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103141DOI Listing

A mother-centered evaluation of breast pumps.

Appl Ergon 2020 May 14;88:103123. Epub 2020 May 14.

Mechanical, Industrial & Systems Engineering, University of Rhode Island, Kingston, RI, USA. Electronic address:

Existing literature outlines mothers' negative experiences with breast pumps, yet a gap exists of which breast pump characteristics are important to mothers. Identifying which breast pump characteristics are important to breast pumping mothers, and any variation between mothers who do or do not work outside of the home, will help identify user needs. A survey collected information on mothers' experiences with breast pumps and impressions of their characteristics. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103123DOI Listing

A sustainable working life for all ages - The swAge-model.

Authors:
Kerstin Nilsson

Appl Ergon 2020 Jul 28;86:103082. Epub 2020 Mar 28.

Lund University, Division of Occupational and Environmental Medicine, Sweden. Electronic address:

Background: Due to the demographic challenge in most countries it is important to consider making work life sustainable. A sustainable work life is of importance in all age groups when working life will be extended to a higher age.

Aim: Towards a theoretical model with an impact on a sustainable working life for all ages, the swAge - model. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103082DOI Listing

Using FRAM to explore sources of performance variability in intravenous infusion administration in ICU: A non-normative approach to systems contradictions.

Appl Ergon 2020 Jul 9;86:103113. Epub 2020 Apr 9.

Human Reliability Associates, 1 School House, Higher Lane, Dalton, WN8 7RP, UK.

Systems contradictions present challenges that need to be effectively managed, e.g. due to conflicting rules and advice, goal conflicts, and mismatches between demand and capacity. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103113DOI Listing

The national health information technology human factors and ergonomics agenda.

Appl Ergon 2020 Jul 16;86:103109. Epub 2020 Apr 16.

Veterans Affairs Salt Lake City Health Care System, Salt Lake City, UT, USA.

Health information technology (IT) implementation has encompassed much of the United States health care system over the past decade, and user frustration with health IT has steadily increased. Human factors and ergonomics (HFE) methods and approaches can improve the design, implementation, and use of health IT for clinicians and consumers. To better understand the effect of federal HFE in health IT research funding, the authors conducted a review of several key, specific initiatives. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103109DOI Listing

Sex differences in upper limb musculoskeletal biomechanics during a lifting task.

Appl Ergon 2020 Jul 6;86:103106. Epub 2020 Apr 6.

School of Kinesiology and Exercise Science, Faculty of Medicine, University of Montreal, Canada.

Women experience higher prevalence of work-related upper limb musculoskeletal disorders compared to men. Previous studies have investigated the biological, kinematic and electromyographic sex-related differences during a lifting task but the actual differences in musculoskeletal loads remain unknown. We investigated the sex differences in three musculoskeletal indicators: the sum of muscle activations, the sum of muscle forces and the relative time spent beyond a shear-compression dislocation ratio. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103106DOI Listing

Effect of material property, surface temperature and contact duration on the thermal sensation when contacting shell materials of electronic devices.

Appl Ergon 2020 Jul 8;86:103104. Epub 2020 Apr 8.

College of Human Ecology, Cornell University, Ithaca, 14853, NY, United States; Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong. Electronic address:

Heat generated in electronic devices is generally unevenly distributed across the casing. Contacting the hot areas may cause thermal discomfort and possibly skin burn. This study aims at better understanding the interrelationship between the thermal sensation, material properties and surface temperature for enhancing the user experience of electronic devices. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103104DOI Listing

Automated driving: A biomechanical approach for sleeping positions.

Appl Ergon 2020 Jul 8;86:103103. Epub 2020 Apr 8.

Department of Biomechanics in Sports, Technical University of Munich, Uptown München-Campus D, Georg-Brauchle-Ring 60/62, 80992, München, Germany.

Occupants of autonomous vehicle have frequently indicated the desire to sleep or rest while driving, yet little has been known regarding the suitable design criteria for a biomechanically reasoned in-vehicle sleeping position. This study was aimed at evaluating the biomechanical quality of different backrest and seat pan angle combinations, and at predicting the most favourable sleeping positions based on vehicle restriction. More specifically, the interface pressure distribution and subjective suitability rating of 23 subjects was assessed in a total of nine (3 × 3) combinations of seat pan (20°, 30°, 40°) and backrest (145°, 155°, 165°) angles. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103103DOI Listing

The effect of known decision support reliability on outcome quality and visual information foraging in joint decision making.

Appl Ergon 2020 Jul 6;86:103102. Epub 2020 Apr 6.

School of Engineering, University of Birmingham, B15 2TT, UK. Electronic address:

Decision support systems (DSSs) are being woven into human workflows from aviation to medicine. In this study, we examine decision quality and visual information foraging for DSSs with different known reliability levels. Thirty-six participants completed a financial fraud detection task, first unsupported and then supported by a DSS which highlighted important information sources. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103102DOI Listing

The RAMP package for MSD risk management in manual handling - A freely accessible tool, with website and training courses.

Appl Ergon 2020 Jul 13;86:103101. Epub 2020 Apr 13.

KTH Royal Institute of Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Department of Biomedical Engineering and Health Systems, Division of Ergonomics, Hälsovägen 11C, SE-141 57, Huddinge, Sweden; Karolinska Institutet, Institute of Environmental Medicine, Unit of Occupational Medicine, Stockholm, Sweden.

In this paper the RAMP Package is presented with the objective to facilitate the application of the RAMP tool to systematically manage MSD risks. The package consists of the RAMP tool (Risk Assessment and Management tool for manual handling Proactively), the RAMP website, and free, globally available online, training courses (MOOCs). An Action module used for managing identified MSD risks is introduced. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103101DOI Listing

A work system analysis of the medication administration process in a Norwegian nursing home ward.

Appl Ergon 2020 Jul 15;86:103100. Epub 2020 Apr 15.

Norwegian University of Science and Technology (NTNU), Department of Health Sciences in Gjøvik, Norway. Electronic address:

Nursing home patients often have multiple diagnoses and a high prevalence of polypharmacy and are at risk of experiencing adverse drug events. The study aims to explore the dynamic interactions of stakeholders and work system elements in the medication administration process in a nursing home ward. Data were collected using observations and interviews. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103100DOI Listing

Seat cushions made of warp knitted spacer fabrics influence seat transmissibility.

Appl Ergon 2020 Jul 31;86:103099. Epub 2020 Mar 31.

Chemnitz University of Technology, Sports Equipment and Technology, Reichenhainer Str. 70, 09126 Chemnitz, Germany. Electronic address:

The aim of this study was to compare the application of different warp knitted spacer fabrics on a car seat shell to a standard seat in terms of vertical seat transmissibility. Furthermore, the results obtained by human subject tests were compared to results of an anthropodynamic dummy test. Experiments were conducted on a vertically actuated platform under laboratory conditions with 16 human subjects and an anthropodynamic dummy. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103099DOI Listing

Risk factors for development of lower limb osteoarthritis in physically demanding occupations: A systematic review and meta-analysis.

Appl Ergon 2020 Jul 17;86:103097. Epub 2020 Apr 17.

Tactical Research Unit, Bond University, 2 Promethean Way, Robina, QLD, 4226, Australia; School of Community Health, Charles Sturt University, Elizabeth Mitchell Dr, Thurgoona, NSW, 2640, Australia. Electronic address:

This systematic review and meta-analysis identified and critically reviewed the findings of recent studies (last 15 years) examining relationships between specific physically demanding occupations or occupational tasks and development of lower limb osteoarthritis (OA). Twenty-eight studies with 266,227 cases of lower limb OA were included. Occupational tasks contributing to OA included farming, floor laying, and brick laying. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103097DOI Listing

The personal and contextual factors that affect customer experience during rail service failures and the implications for service design.

Appl Ergon 2020 Jul 20;86:103096. Epub 2020 Mar 20.

School of Design and Creative Arts, Loughborough University, Epinal Way, Loughborough, LE11 3TU, UK. Electronic address:

This paper: identifies personal and contextual factors that influence customer experience when service failures occur in rail transport; what is being conveyed through that factor (e.g. older age being used to convey vulnerability); and the implications for future service design. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103096DOI Listing

Diagnosing rare diseases: A sociotechnical approach to the design of complex work systems.

Appl Ergon 2020 Jul 1;86:103095. Epub 2020 Apr 1.

Centre for Transformative Work Design, The Future of Work Institute, Curtin University, 78 Murray Street, Perth, WA, 6000, Australia.

How do complex healthcare systems that are organised into distinct speciality areas achieve effective patient care transitions when patients present with a rare constellation of symptoms that affect multiple body systems? How do these patients challenge existing ways of organising tasks, clinical activities, and interdependent responsibilities? The current study applies a sociotechnical systems perspective to understand how these complex work design and care-related challenges were resolved by the Western Australian Undiagnosed Diseases Program. We conducted a two-year longitudinal, qualitative study of this program, conceived to improve the diagnosis and management of patients with rare, multi-system disorders by piloting a re-design of the local system of diagnostic work. Specifically, we (1) compared the configuration and effectiveness of the old system and the re-designed system; and (2) analysed the process of system re-design (i. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103095DOI Listing
July 2020
2.023 Impact Factor

Automation reliability, human-machine system performance, and operator compliance: A study with airport security screeners supported by automated explosives detection systems for cabin baggage screening.

Appl Ergon 2020 Jul 10;86:103094. Epub 2020 Apr 10.

University of Applied Sciences and Arts Northwestern Switzerland, School of Applied Psychology, Institute Humans in Complex Systems, Riggenbachstrasse 16, CH-4600, Olten, Switzerland. Electronic address:

Using a simulated X-ray screening task, we tested 122 airport security screeners working with the support of explosives detection systems for cabin baggage screening (EDSCB) as low-level automation. EDSCB varied systematically on three automation reliability measures: accuracy, d', and positive predictive value (PPV). Results showed that when unaided performance was high, operator confidence was high, and automation provided only small benefits. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103094DOI Listing

Circumferential tissue compression at the lower limb during walking, and its effect on discomfort, pain and tissue oxygenation: Application to soft exoskeleton design.

Appl Ergon 2020 Jul 28;86:103093. Epub 2020 Mar 28.

Design Factors, Health Research Institute & CONFIRM Smart Manufacturing Centre, School of Design, University of Limerick, Limerick, Ireland. Electronic address:

Soft exoskeletons apply compressive forces at the limbs via connection cuffs to actuate movement or stabilise joints. To avoid excessive mechanical loading, the interface with the wearer's body needs to be carefully designed. The purpose of this study was to establish the magnitude of circumferential compression at the lower limb during walking that causes discomfort/pain. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103093DOI Listing

Safety Voice for Ergonomics (SAVE): Evaluation of a masonry apprenticeship training program.

Appl Ergon 2020 Jul 18;86:103083. Epub 2020 Mar 18.

Department of Physical Therapy, Eastern Washington University, Spokane, WA, USA.

Background: Masons have a high rate of musculoskeletal disorders among construction workers and greater than all other industries. Viable solutions to musculoskeletal hazards have been identified by industry stakeholders, yet masons receive minimal ergonomics training. Apprentices, as the next generation of masons, need training and strategies to identify and speak up about ergonomic and safety issues on job sites. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103083DOI Listing

Reliability of a battery of tests for functional evaluation of trunk exoskeletons.

Appl Ergon 2020 Jul 10;86:103117. Epub 2020 Apr 10.

University of Primorska, Faculty of Health Sciences, Department of Kinesiology and Physiotherapy, Koper, Slovenia; S2P, Science to Practice, Ltd, Laboratory for Motor Control and Motor Behaviour, Ljubljana, Slovenia. Electronic address:

Recently, several spinal exoskeletons were developed with the aim to assist occupational tasks such as load-handling and work in prolonged static postures. While the biomechanical effects of such devices has been well investigated, only limited feedback to the developers is usually provided regarding the subjective perceptions of the end-users. The aim of this study was to present a novel battery of tests, designed to assess functional performance and subjective outcomes during the use of assistive trunk exoskeletons, and to assess its test-retest reliability. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103117DOI Listing

Applying AcciMap to test the common cause hypothesis using aviation near misses.

Appl Ergon 2020 Apr 17;87:103110. Epub 2020 Apr 17.

Centre for Human Factors and Sociotechnical Systems, University of the Sunshine Coast, Faculty of Arts and Business, Locked Bag 4, Maroochydore, QLD, 4558, Australia; WorkSafe Victoria, Level 11, 1 Malop St., Geelong, VIC, 3220, Australia.

The common cause hypothesis, as applied here, proposes that similar networks of influencing factors may contribute to both adverse outcomes and near misses. This hypothesis has not been evaluated using a systems-thinking perspective. The aims of this study are to evaluate whether networks of contributory and protective factors exist within aviation serious near miss reports and to determine if the common cause hypothesis is applicable in this context. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103110DOI Listing

Defining adaptive capacity in healthcare: A new framework for researching resilient performance.

Appl Ergon 2020 Apr 20;87:103111. Epub 2020 Apr 20.

Faculty of Health Sciences, SHARE - Centre for Resilience in Healthcare, University of Stavanger, Norway. Electronic address:

Resilience principles show promise for improving the quality of healthcare, but there is a need for further theoretical development to include all levels and scales of activity across the whole healthcare system. Many existing models based on engineering concepts do not adequately address the prominence of social, cultural and organisational factors in healthcare work. Promising theoretical developments include the four resilience potentials, the CARE model and the Moments of Resilience Model, but they are all under specified and in need of further elaboration. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103111DOI Listing

Ergonomics assessment of passive upper-limb exoskeletons in an automotive assembly plant.

Appl Ergon 2020 Apr 15;87:103120. Epub 2020 Apr 15.

Instituto de Biomecánica de Valencia, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain; Grupo de Tecnología Sanitaria del IBV, CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Valencia, Spain.

Over the years, the industry's interest in using external support devices, such as exoskeletons, is increasing. They are introduced as a new technique for improving the conditions of workers and for reducing the risk of musculoskeletal injuries. An investigation of muscle activity, Jonsson's (Jonsson, 1982) ergonomic acceptance ranges, and shoulder range of motion was conducted with a sample of 12 workers using an upper extremity exoskeleton in an automotive assembly line. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103120DOI Listing

Patient decision-making personas: An application of a patient-centered cognitive task analysis (P-CTA).

Appl Ergon 2020 Apr 15;87:103107. Epub 2020 Apr 15.

Parkview Mirro Center for Research and Innovation, Parkview Health, USA.

Personas can be used to understand patterns of variation in patients' performance of cognitive work, particularly self-care decision making. In this study, we used a patient-centered cognitive task analysis (P-CTA) to develop self-care decision-making personas. We collected data from 24 older adults with chronic heart failure and 14 support persons, using critical incident and fictitious scenario interviews. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103107DOI Listing
April 2020
2.023 Impact Factor

Email phishing and signal detection: How persuasion principles and personality influence response patterns and accuracy.

Appl Ergon 2020 Jul 9;86:103084. Epub 2020 Mar 9.

Department of Psychology, North Carolina State University, Raleigh, NC, USA.

Phishing is a social engineering tactic where a malicious actor impersonates a trustworthy third party with the intention of tricking the user into divulging sensitive information. Previous social engineering research in a real-world setting has shown an interaction between the personality of the target and the persuasion principle used. This study investigated whether this interaction is present in the realm of email phishing. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103084DOI Listing

Effects of speech-based intervention with positive comments on reduction of driver's anger state and perceived workload, and improvement of driving performance.

Appl Ergon 2020 Jul 13;86:103098. Epub 2020 Mar 13.

Guanghua School of Management, Peking University, Beijing, China.

Research suggests that speech-based interventions can mitigate driving anger and enhance road safety. The present study found that both positive and negative comments can reduce anger state and perceived workload, and improve driving performance. In addition, positive comment including description of the driving environment and comment on drivers is more effective than negative comment intervention, which is indicated by larger effect size and higher user satisfaction and acceptance. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103098DOI Listing

Temporal leeway: can it help to reduce biomechanical load for older workers performing repetitive light assembly tasks?

Appl Ergon 2020 Jul 10;86:103081. Epub 2020 Mar 10.

Working Life Department, Physiology - Movement - Work Laboratory, INRS (Institut National de Recherche et de Sécurité), 1 rue du Morvan, CS 60027, F-54519, Vandœuvre cedex, France.

Current industrial production systems allow assembly of customised products which include additional elements distinguishing them from a reference model. This customisation can result in significant additional time constraints which compel workers to complete their tasks faster, which may pose problems for older workers. The objective of this laboratory study was to investigate the impact of restrictive or flexible pacing during assembly of customised products among groups of younger and older participants. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103081DOI Listing

A prospective longitudinal study of mobile touch screen device use and musculoskeletal symptoms and visual health in adolescents.

Appl Ergon 2020 May 17;85:103028. Epub 2020 Jan 17.

School of Physiotherapy and Exercise Science, Curtin University, Perth, Australia.

This study aimed to examine prospective associations of mobile touch screen device (i.e. smartphone, tablet) use and patterns of use with musculoskeletal symptoms and visual health among adolescents. Read More

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http://dx.doi.org/10.1016/j.apergo.2019.103028DOI Listing

Environmental information for people with visual impairment in Mexico - or what they need and how they use it.

Appl Ergon 2020 May 23;85:103079. Epub 2020 Feb 23.

Ergonomics Research Centre, University of Guadalajara, Guadalajara, Jalisco, 44250, Mexico.

From an ergonomics perspective, the environmental characteristics should facilitate user activities. Matching user capabilities to demands of the environment is essential. However, about some users such as those with visual impairments, there is little information available for use in designing products and spaces. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103079DOI Listing

Machine learning algorithms applied to a prediction of personal overall thermal comfort using skin temperatures and occupants' heating behavior.

Appl Ergon 2020 May 19;85:103078. Epub 2020 Feb 19.

Eindhoven University of Technology, Department of the Built Environment, De Zaale, PO Box 513, 5600, MB Eindhoven, the Netherlands. Electronic address:

Thermal comfort modeling has been of interest in built environment research for decades. Mostly the modeling approaches focused on an average response of a large group of building occupants. Recently, the focus has been shifted towards personal comfort models that predict individuals' thermal comfort responses. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103078DOI Listing

It's time to bring human factors to primary care policy and practice.

Appl Ergon 2020 May 19;85:103077. Epub 2020 Feb 19.

International Collaborative to Improve Primary Care Through Industrial and Systems Engineering (I-PrACTISE), USA; University of Wisconsin School of Medicine and Public Health, USA; University of Wisconsin Department of Industrial and Systems Engineering, USA.

Primary health care is a complex, highly personal, and non-linear process. Care is often sub-optimal and professional burnout is high. Interventions intended to improve the situation have largely failed. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103077DOI Listing

Does the use of a head mounted display increase the success of risk awareness and perception training (RAPT) for drivers?

Appl Ergon 2020 May 14;85:103076. Epub 2020 Feb 14.

Institute for Transport Studies, University of Leeds, LS2 9JT, United Kingdom.

The PC-based driver training programme, Risk Awareness and Perception Training (RAPT) has been successful in improving young drivers' hazard anticipation and mitigation responses in both simulator and on-road studies. The current research aimed to evaluate the success of an adaptation of this training for the UK context, along with investigating the impact of the presentation modality on RAPT effectiveness. Traditionally RAPT has been delivered on a PC monitor, which does not allow the same range of head and eye movements that drivers use when on the road. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103076DOI Listing

Shoulder pain among male industrial workers: Validation of a conceptual model in two independent French working populations.

Appl Ergon 2020 May 14;85:103075. Epub 2020 Feb 14.

Univ Angers, CHU Angers, Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-49000, Angers, France.

This study aims to validate a conceptual model for shoulder pain risk factors in two independent samples of male industrial workers: the Cosali cohort (n = 334) and one pharmaceutical company (n = 487). Direct and indirect relationships between work organization factors (automatic speed of a machine or movement of a product and work pace dependent on customers' demand), psychosocial factors (Job strain model), biomechanical factors (working with abducted arms, working with arms at or above shoulder level, and perceived physical exertion), perceived stress, and shoulder pain were explored using structural equation models. Shoulder pain was positively associated with biomechanical exposure in both samples, and with perceived stress only in the pharmaceutical preparation manufacturer, while factors related to work organization and psychosocial factors had indirect impacts on the risk of chronic shoulder pain in both samples. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103075DOI Listing

Effects of cognitive and visual loads on driving performance after take-over request (TOR) in automated driving.

Appl Ergon 2020 May 14;85:103074. Epub 2020 Feb 14.

Automotive Human Factors Research Center, National Institute of Advanced Industrial Science and Technology, Japan.

The present study investigated effects of cognitive and visual loads on driving performance after take-over request (TOR) in an automated driving task. Participants completed automated driving in a driving simulator without a non-driving related task, with an easy non-driving related task, and with a difficult non-driving related task. The primary task was to monitor the environment and the system state. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103074DOI Listing

Skeuomorphic or flat icons for an efficient visual search by younger and older adults?

Appl Ergon 2020 May 10;85:103073. Epub 2020 Feb 10.

Department of Industrial Engineering, Chongqing University, China, No. 174 Shazheng Street, Shapingba District, Chongqing, 400044, PR China. Electronic address:

The debate around skeuomorphic and flat designs has been long lasting and inconclusive, in part because of the lack of empirical evidence supporting the superiority of one or the other icon style from the perspectives of function and aesthetics. Therefore, this study investigated whether older and younger users perceive the aesthetics of icon styles in the same manner as designers and which style results in the most efficient visual search. Using an experimental system that we developed, 24 older and 24 younger participants rated and searched application icons belonging to the two styles. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103073DOI Listing

Visual-to-auditory sensory substitution alters language asymmetry in both sighted novices and experienced visually impaired users.

Appl Ergon 2020 May 18;85:103072. Epub 2020 Feb 18.

Crossmodal Cognition Laboratory, REVEAL Research Centre, University of Bath, Bath, BA2 7AY, UK; Centre for Health and Cognition, Bath Spa University, Bath, BA2 9BN, UK. Electronic address:

Visual-to-auditory sensory substitution devices (SSDs) provide improved access to the visual environment for the visually impaired by converting images into auditory information. Research is lacking on the mechanisms involved in processing data that is perceived through one sensory modality, but directly associated with a source in a different sensory modality. This is important because SSDs that use auditory displays could involve binaural presentation requiring both ear canals, or monaural presentation requiring only one - but which ear would be ideal? SSDs may be similar to reading, as an image (printed word) is converted into sound (when read aloud). Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103072DOI Listing

Investigating the relationship between eye movements and situation awareness in weather forecasting.

Appl Ergon 2020 May 14;85:103071. Epub 2020 Feb 14.

School of Industrial and Systems Engineering, University of Oklahoma, Norman, OK, 73079, USA.

Physiological indicators, including eye tracking measures, may provide insight into human decision making and cognition in many domains, including weather forecasting. Situation awareness (SA), a critical component of forecast decision making, is commonly conceptualized as the degree to which information is perceived, understood, and projected into a future context. Drawing upon recent applications of eye tracking in the study of forecaster decision making, we investigate the relationship among eye movement measures, automation, and SA assessed through a freeze probe assessment method. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103071DOI Listing

Conceptualizing caregiving activities for persons with dementia (PwD) through a patient work lens.

Appl Ergon 2020 May 8;85:103070. Epub 2020 Feb 8.

Department of Industrial and Systems Engineering, University of Wisconsin - Madison, USA. Electronic address:

Informal caregivers are an integral part of care delivery for persons with dementia (PwD). Informal caregivers take part in a wide range of care activities both individually and collaboratively with other caregivers. Caregiving often involves high demands in the face of limited resources, which can lead to stress, burden, and burnout. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103070DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7098392PMC

Collaborating with radiographers to address their work-related musculoskeletal discomfort.

Appl Ergon 2020 May 15;85:103069. Epub 2020 Feb 15.

College of Engineering, The Ohio State University, USA. Electronic address:

The prevalence of musculoskeletal (MSK) symptoms in radiographers is high, similar to other healthcare occupations that involve high levels of physical exertion (e.g. patient handling; grasping and moving equipment). Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103069DOI Listing

Knowing what's coming: Anticipatory audio cues can mitigate motion sickness.

Appl Ergon 2020 May 6;85:103068. Epub 2020 Feb 6.

Ford Research Center, Aachen, Germany.

Being able to anticipate upcoming motion is known to potentially mitigate sickness resulting from provocative motion. We investigated whether auditory cues could increase anticipation and subsequently reduce motion sickness. Participants (N = 20) were exposed on a sled on a rail track to two 15-min conditions. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103068DOI Listing

Emotional factors and physical properties of ballpoint pens that affect user satisfaction: Implications for pen and stylus design.

Appl Ergon 2020 May 31;85:103067. Epub 2020 Jan 31.

Department of Industrial Engineering and Management Systems, University of Central Florida, Orlando, FL, USA. Electronic address:

Many studies of ballpoint pens have been conducted. However, those studies have not considered the emotional factors that can enhance user experience. Styluses resemble ballpoint pens in many ways, which are widely available in a variety of styles. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103067DOI Listing

Thermal comfort and virtual reality headsets.

Appl Ergon 2020 May 6;85:103066. Epub 2020 Feb 6.

School of Design, Hunan University, China. Electronic address:

This study proposed to investigate the thermal properties and subjective thermal discomfort of five virtual reality headsets, and their relationships. Twenty-seven university students used each of the five headsets for 45 min. Microclimate temperature and relative humidity were measured by miniature dataloggers. Read More

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Effect of whole-body vibration exposures on physiological stresses: Mining heavy equipment applications.

Appl Ergon 2020 May 1;85:103065. Epub 2020 Feb 1.

School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR, USA. Electronic address:

The aim of this study was to employ validated biological markers to quantify the physiologic consequences of exposure to whole-body vibration (WBV) and evaluate the relative impact of mining vehicle operator vibration exposure on physiological responses as compared to vertical-axial dominant WBV. In a laboratory-based study with a repeated-measures design, we played actual field-measured floor vibration profiles into a 6-degree-of-freedom motion platform to create different realistic WBV exposures: 1) vertical-dominant vibration collected from long-haul trucks, 2) multi-axial vibration collected from mining heavy equipment vehicles, and 3) no vibration (control condition). Circulating biomarkers of interest were cortisol and catecholamines (epinephrine and norepinephrine) to assess physiological stress, interleukin-6 (IL-6) and tumor necrosis factor-α (TNFα) to test for inflammation, thiobarbituric acid reactive substances (TBARS) to measure oxidative stress, and myoglobin and plasma creatine kinase to assess muscle damage. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103065DOI Listing

Extending work tolerance time in the heat in protective ensembles with pre- and per-cooling methods.

Appl Ergon 2020 May 8;85:103064. Epub 2020 Feb 8.

Institute of Health and Biomedical Innovation, School of Exercise and Nutrition Sciences, Queensland University of Technology, Brisbane, Australia.

Objectives: Investigate whether a range of cooling methods can extend tolerance time and/or reduce physiological strain in those working in the heat dressed in a Class 2 chemical, biological, radiological, nuclear (CBRN) protective ensemble.

Methods: Eight males wore a Class 2 CBRN ensemble and walked for a maximum of 120 min at 35 °C, 50% relative humidity. In a randomised order, participants completed the trial with no cooling and four cooling protocols: 1) ice-based cooling vest (IV), 2) a non-ice-based cooling vest (PCM), 3) ice slushy consumed before work, combined with IV (SLIV) and 4) a portable battery-operated water-perfused suit (WPS). Read More

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Journey mapping from a crew's perspective: Understanding rail experiences.

Appl Ergon 2020 May 1;85:103063. Epub 2020 Feb 1.

Design School, Loughborough University, Loughborough, LE11 3TU, United Kingdom. Electronic address:

Technological developments present diverse opportunities to modernise services for the rail industry. Systems can be implemented to improve passengers' experiences, but these may also affect the experiences of crew working on board trains. This first-of-a-kind research extends the concept of customer journey mapping as a design tool to understand the experiences of train crew. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103063DOI Listing

Comfortable leg splay of mid-sized males in automotive seats.

Appl Ergon 2020 May 31;85:103062. Epub 2020 Jan 31.

Mechanical Engineering, Michigan State University, East Lansing, MI, 48824, USA. Electronic address:

Many factors affect the comfort of automotive seats including pressure distribution, vibration, temperature, and backrest inclination. However, one aspect of seating that has not been well studied is leg splay; splay is a rotation at the hips which causes the knees to move outward. The work presented here identified the ranges of "comfortable" splay in different styles of seats and related changes in seating pressure due to leg splay. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103062DOI Listing

A syringe adapter for reduced muscular strain and fatigue.

Appl Ergon 2020 May 22;85:103061. Epub 2020 Jan 22.

Department of Biomedical Engineering, University of Wisconsin-Madison, WI, 53706, USA; Department of Industrial and Systems Engineering, University of Wisconsin-Madison, WI, 53706, USA. Electronic address:

Workers in hospitals, clinics, and contract research organizations who repetitively use syringes have an increased risk for musculoskeletal disorders. This study developed and tested a novel syringe adapter designed to reduce muscle strain associated with repetitive fluid draws. Three syringe plunger extension methods (ring-finger, middle-finger, and syringe adapter) were studied across twenty participants. Read More

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http://dx.doi.org/10.1016/j.apergo.2020.103061DOI Listing