Feasibility of methods for early formative control room system evaluation
Publication date: January 2020Source: International Journal of Industrial Ergonomics, Volume 75Author(s): Eva Simonsen, Lars-Ola Bligård, Anna-Lisa OsvalderAbstractIn a nuclear power plant, human factors evaluation is an important activity in the design of the control room system to ensure safe operation. The purpose of this study was to test the feasibility of methods for early formative evaluation of nuclear power plant control room systems, that is to say assessment of more general design decisions. Two methods were chosen for the assessment, scenario-based talkthrough and heuristic evaluation, and they were teste...
Source: International Journal of Industrial Ergonomics - December 5, 2019 Category: Occupational Health Source Type: research

Shoulder muscle activity in off-axis pushing and pulling tasks
Publication date: January 2020Source: International Journal of Industrial Ergonomics, Volume 75Author(s): Alison C. McDonald, Carmen Tsang, Kimberly A. Meszaros, Clark R. DickersonAbstractWorkspace design can often dictate the muscular efforts required to perform work, impacting injury risk. Within many environments, industrial workers often use sub-maximal forces in offset directions in to accomplish job tasks. The purpose of this research was to develop methods to estimate shoulder muscle activation during seated, static, sub-maximal exertions in off-axis (non-cardinal) directions. Surface EMG signals were recorded from ...
Source: International Journal of Industrial Ergonomics - December 4, 2019 Category: Occupational Health Source Type: research

An approach to human motor skill training for uniform group performance
This study introduces a new approach to support assignment of training protocols to operators to achieve comparable levels of motor performance. Thirty-six participants performed a computer-based motor test. Based on performance classification results, each participant was assigned to a specific haptic virtual reality training condition. Results revealed participants identified as ‘medium’ or ‘low’ performers achieved levels of motor performance comparable to ‘high’ performers through 1-h training.Relevance to IndustryFindings can be applied to operator training in manual assembly operat...
Source: International Journal of Industrial Ergonomics - December 4, 2019 Category: Occupational Health Source Type: research

Editorial Board
Publication date: November 2019Source: International Journal of Industrial Ergonomics, Volume 74Author(s): (Source: International Journal of Industrial Ergonomics)
Source: International Journal of Industrial Ergonomics - November 29, 2019 Category: Occupational Health Source Type: research

Mobile pupillometry in manual assembly: A pilot study exploring the wearability and external validity of a renowned mental workload lab measure
Publication date: January 2020Source: International Journal of Industrial Ergonomics, Volume 75Author(s): Bram B. Van Acker, Klaas Bombeke, Wouter Durnez, Davy D. Parmentier, João Costa Mateus, Alessandro Biondi, Jelle Saldien, Peter VlerickAbstractHuman operators in the upcoming Industry 4.0 workplace will face accelerating job demands such as elevated cognitive complexity. Unobtrusive objective measures of mental workload (MWL) are therefore in high demand as indicated by both theory and practice. This pilot study explored the wearability and external validity of pupillometry, a MWL measure robustly validated in l...
Source: International Journal of Industrial Ergonomics - November 29, 2019 Category: Occupational Health Source Type: research

Prediction of work-related musculoskeletal discomfort in the meat processing industry using statistical models
The objective of this study was the development of statistical models for the prediction of work-related musculoskeletal discomfort. A sample of 174 workers of the meat processing industry was taken. Diverse ergonomic evaluation methods were applied on data collected by means of direct observation and surveys. Later, pattern recognition techniques were used to identify the relevant predictor variables from an initial set of 20 variables. A prevalence of musculoskeletal discomfort of 77% was found. The most suitable classification models to predict the discomfort were the models based on logistic regression and decision tre...
Source: International Journal of Industrial Ergonomics - November 26, 2019 Category: Occupational Health Source Type: research

Relative Pointing Interface: A gesture interaction method based on the ability to divide space
Publication date: January 2020Source: International Journal of Industrial Ergonomics, Volume 75Author(s): Mingyu Lee, Jiyoung Kwahk, Sung H. Han, Hojin LeeA new type of 3D gesture interface called Relative Pointing Interface (RelPoInt) is suggested in this study. RelPoInt allows users to select a virtual button by pointing to a relative position in a virtual 3D menu. This approach makes use of the distance or angle between the relative point and the reference point. Users can set the reference point freely and operate all the functions on the menu with a simple gesture. Microsoft Kinect was used to implement the RelPoInt i...
Source: International Journal of Industrial Ergonomics - November 26, 2019 Category: Occupational Health Source Type: research

Are knee savers and knee pads a viable intervention to reduce lower extremity musculoskeletal disorder risk in residential roofers?
This study has provided initial data that supports the use of knee savers as a potential intervention to reduce musculoskeletal disorder risk due to lower extremity joint angles on a sloped surface, nonetheless, further testing involving other musculoskeletal disorder risk factors is needed prior to a conclusive recommendation. (Source: International Journal of Industrial Ergonomics)
Source: International Journal of Industrial Ergonomics - November 19, 2019 Category: Occupational Health Source Type: research

The role of whole-body vibration in back pain: A cross-sectional study with agricultural pilots
ConclusionUsing the data from this study, it was possible to calculate the odds ratio of the agricultural pilot suffering low back pain, based on eight personal and work-related factors.Relevance for the industryBased on the results of the present study, it was possible to define strategies to reduce whole-body exposure in agricultural aircraft and, consequently, improve the pilots’ health. Strategies included management of the exposure and aircraft improvement.Graphical abstract (Source: International Journal of Industrial Ergonomics)
Source: International Journal of Industrial Ergonomics - November 16, 2019 Category: Occupational Health Source Type: research

Ergonomic design visualization mapping- developing an assistive model for design activities
Publication date: November 2019Source: International Journal of Industrial Ergonomics, Volume 74Author(s): Ranit Eldar, Dafna Fisher-GewirtzmanAbstractErgonomic models and techniques are a fundamental issue in the design of comfortable and safe products and spaces. User studies, related to visualization tools are current issues in the ergonomics and design visualization literature. But researchers have begun to discover that user study is rarely straightforward, especially when drawing visualization data from interdisciplinary sources. The availability of a plethora of visualization techniques can make it difficult to dete...
Source: International Journal of Industrial Ergonomics - November 16, 2019 Category: Occupational Health Source Type: research

Risk factors analysis: Work-related musculoskeletal disorders among male traffic policemen using high-powered motorcycles
DiscussionThe majority of riders reported symptoms of WMSDs within the past 12 months. Riding duration, years of service, and hand-arm vibration (HAV) were found to be the most important risk factors for WMSDs in this rider group. The results highlight that in the context of ergonomic interaction, high-powered motorcycles and the police riders are not a good fit. Hence, further study is needed to improve the safety and health of the police riders. (Source: International Journal of Industrial Ergonomics)
Source: International Journal of Industrial Ergonomics - November 16, 2019 Category: Occupational Health Source Type: research

Selection of key visual cues in real and virtual environments for assembly tasks
Publication date: November 2019Source: International Journal of Industrial Ergonomics, Volume 74Author(s): Salvador Rojas-Murillo, Priyadarshini R. PennathurAbstractPrevious research identified that learning assembly tasks in Virtual Environments (VEs) is more difficult than in Real Environments (REs). This work's objective is to identify the key visual areas for both environments when performing an assembly task for ten consecutive cycles, when following visual instructions and when having visual distractors. Using an eye-tracker, we identified the key visual areas required for an assembly task in both environments. Resul...
Source: International Journal of Industrial Ergonomics - November 16, 2019 Category: Occupational Health Source Type: research

Evaluation of holding handheld scanner on muscle activity, heart rate variability, and model accuracy in industrial applications
Publication date: November 2019Source: International Journal of Industrial Ergonomics, Volume 74Author(s): Mohamed Z. Ramadan, Mustafa M. Nasr, Abdulmajeed A. Dabwan, Tamer M. Khalaf, Mohammed H. Alhaag, Ahmed T. Soliman, Abdelaty E. AbdelgawadAbstractPurposeThe capabilities of handheld scanners have been investigated previously in different applications, without considering its impact on the accuracy of model, heart rate variability (HRV), subjective measurements, and worker muscular activity. The present study aims to evaluate the impact of using two handheld scanners, elevation, and orientation of object that is scanned...
Source: International Journal of Industrial Ergonomics - November 15, 2019 Category: Occupational Health Source Type: research

Safety climate and health complaints in the Norwegian aquaculture industry
Publication date: November 2019Source: International Journal of Industrial Ergonomics, Volume 74Author(s): Trond Kongsvik, Øyvind Dahl, Ingunn Marie Holmen, Trine ThorvaldsenAbstractFew studies have explored the potential connection between safety climate and health issues. However, some recent research findings indicate that a poor safety climate can be considered a stressor that may be associated with physical symptoms and musculoskeletal complaints. This link is further explored in the present study on the basis of a questionnaire study of 446 sharp-end workers in the Norwegian aquaculture industry. The analysis ...
Source: International Journal of Industrial Ergonomics - November 14, 2019 Category: Occupational Health Source Type: research

In-ear noise dosimetry under earplug: Method to exclude wearer-induced disturbances
Publication date: November 2019Source: International Journal of Industrial Ergonomics, Volume 74Author(s): Fabien Bonnet, Hugues Nélisse, Marcos A.C. Nogarolli, Jérémie VoixAbstractWhile personal noise exposure assessments are necessary to prevent noise-induced hearing loss in the workplace, standard personal noise dosimeters are limited when measuring the noise exposure of individuals wearing hearing protection devices (HPD). To overcome the difficulties in assessing the attenuation provided by HPDs, continuous monitoring systems of an individual's noise exposure under the HPD show promise. However, t...
Source: International Journal of Industrial Ergonomics - November 12, 2019 Category: Occupational Health Source Type: research

Activity in neck-shoulder and lower arm muscles during computer and smartphone work
Publication date: November 2019Source: International Journal of Industrial Ergonomics, Volume 74Author(s): Theo Bodin, Karin Berglund, Mikael ForsmanAbstractRelevance to industryThere is emerging evidence of musculoskeletal problems related to smartphone work and a rapid transition to mobile workplaces, where smartphones are key working tools. Aim: The study's aim was to compare muscle activity during computer work with smartphone work and to see what possible effects ergonomic recommendations for smartphone usage have on muscle activity.MethodsActivity was measured bilaterally from the upper trapezius muscle and from lowe...
Source: International Journal of Industrial Ergonomics - October 31, 2019 Category: Occupational Health Source Type: research

A mechanism based on finger-sliding behavior for designing radial menus
Publication date: November 2019Source: International Journal of Industrial Ergonomics, Volume 74Author(s): Sheau-Farn Max Liang, Marino Menozzi, Ying-Yin Rudy HuangAbstractHuman behavior about sliding their fingers on touch screens needs to be understood for the design of radial menus. For this purpose, data about the angles of finger sliding in performing radial pointing to eight predefined directions were collected. The optimal angle ranges and boundaries for these directions were then determined by the proposed mechanism. Consistent with previous research, results showed that the deviations of slide angles for the four ...
Source: International Journal of Industrial Ergonomics - October 31, 2019 Category: Occupational Health Source Type: research

Determination of comfortable position for tractor Driver's hands based on dynamic load
In this study, the MVC parameter was determined on the basis of muscle tension amplitude related to the maximum muscle isometric contraction. Based on this parameter, the percentage of developed force of tested muscle in relation to its maximum force-generating capabilities was described. This approach helped to define a relationship between human body position and generated load in human muscles. (Source: International Journal of Industrial Ergonomics)
Source: International Journal of Industrial Ergonomics - October 26, 2019 Category: Occupational Health Source Type: research

Estimation of various sitting postures using a load-cell-driven monitoring system
This study tested a system that measures load on the seat pan and load transferred to the backrest using four load cells installed on the seat pan. Three body weight ratios were calculated and differences in body weight ratios were tested among six sitting postures. The results were considered highly reliable based on strong correlations among three instruments’ results despite differences in force plate and dead load between the results of the monitoring system and the load-measuring system. The findings encourage commercialization and future research that includes gender and physical characteristic differences. (So...
Source: International Journal of Industrial Ergonomics - October 20, 2019 Category: Occupational Health Source Type: research

Mismatch between classroom furniture and anthropometric measures of university students
This study helps in establishing and motivating necessary further studies in classroom ergonomics in university settings. (Source: International Journal of Industrial Ergonomics)
Source: International Journal of Industrial Ergonomics - October 19, 2019 Category: Occupational Health Source Type: research

A systematic review of comparative studies on ergonomic assessment techniques
Publication date: November 2019Source: International Journal of Industrial Ergonomics, Volume 74Author(s): Mangesh Joshi, Vishwas DeshpandeAbstractThis review provides a systematic overview of the comparison of ergonomic assessment techniques’ output in variety of industrial sectors.The relevant publications have been classified into broad categories such as comparison of applied industry sector, trend analysis, ergonomic assessment techniques been compared, comparative studies between two ergonomic assessment techniques, frequently compared techniques, levels of Action categories used. The summary of extracted data ...
Source: International Journal of Industrial Ergonomics - October 19, 2019 Category: Occupational Health Source Type: research

Effectiveness of ergonomic training to reduce physical demands and musculoskeletal symptoms - An overview of systematic reviews
Publication date: November 2019Source: International Journal of Industrial Ergonomics, Volume 74Author(s): Ana Lucy Rodrigues Ferreira Faisting, Tatiana de Oliveira SatoAbstractWork-related musculoskeletal disorders are associated with awkward postures, excessive force, manual material handling and repetitive movements. This risk factors can be minimized through interventions such as ergonomic training. The literature covers several studies involving the use of this type of intervention, but there is no consensus about the effectiveness of ergonomic training. The aim of this study was to identify the available evidence abo...
Source: International Journal of Industrial Ergonomics - October 16, 2019 Category: Occupational Health Source Type: research

A prospective study of maintenance deviations using HFACS-ME
Publication date: November 2019Source: International Journal of Industrial Ergonomics, Volume 74Author(s): Prasanna Illankoon, Phillip Tretten, Uday KumarAbstractThe factors initiating aviation accidents are usually hidden behind various steps, systems, and tasks, and systematic root-cause analysis is required to uncover the initial factor(s). To reduce the risk of unfavourable events, it is more appropriate to study their causal factors. We argue that an in-depth study on maintenance process deviations could assist in uncovering hidden causal factors. We therefore analyse reported maintenance deviations from an aviation o...
Source: International Journal of Industrial Ergonomics - October 10, 2019 Category: Occupational Health Source Type: research

Human centered design methodology: Case study of a ship-mooring winch
Publication date: November 2019Source: International Journal of Industrial Ergonomics, Volume 74Author(s): José F. Gaspar, Ângelo P. Teixeira, Adriano Santos, C. Guedes Soares, Pavel Golyshev, Nina KählerAbstractThis paper proposes a human centered design process for the marine industry to support naval architects and marine engineers in the integration of human element considerations in the design of ship systems. The proposed Human Centered Design methodology derives from codes and standards, including those for equipment certification. A case study, consisting of the design of a mooring winch and contr...
Source: International Journal of Industrial Ergonomics - October 4, 2019 Category: Occupational Health Source Type: research

Vertical vibration frequency and sitting posture effects on muscular loads and body balance
This study examined the effects of whole body vibration and sitting posture on muscular load, body balance and discomfort. An electric vibrator, a surface electromyography measurement system and a balance evaluation system were used in the experiment. Nine test conditions were studied consisting of three vertical frequencies (no vibration, 20 and 40 Hz) and three sitting postures (erect, bent-forward and twisted). Study results showed that whole body vibration had significant effects on the muscular loads in the torso muscles, body balance and perceived discomfort. Adverse effects generally increased with high-frequency ...
Source: International Journal of Industrial Ergonomics - October 4, 2019 Category: Occupational Health Source Type: research

Tools and methods used by industrial designers for product dimensioning
Publication date: November 2019Source: International Journal of Industrial Ergonomics, Volume 74Author(s): F. Ranger, S. Vezeau, M. LortieAbstractIndustrial designers often take part in dimensioning activities that require anthropometric data. However, little is known about the data, tools and processes used. Hence, this study focused on documenting process. Telephone interviews were conducted with 82 industrial designers involved in the dimensioning of 4 types of objects (vehicles, furniture, tools, and sports equipment). Questions focused on data, tools employed, existing dimensioning activities and difficulties encounte...
Source: International Journal of Industrial Ergonomics - September 25, 2019 Category: Occupational Health Source Type: research

The effect of hand tools’ handle shape on upper extremity comfort and postural discomfort among hand-woven shoemaking workers
Publication date: November 2019Source: International Journal of Industrial Ergonomics, Volume 74Author(s): Hemmat Veisi, Alireza Choobineh, Haleh Ghaem, Zahra ShafieeAbstractHand tools are widely used in a large number of occupations. Many workers have to use hand tools to accomplish their duties. This may cause work-related Upper Extremities Musculoskeletal Disorders (UEMSDs). The present study was conducted in Iranian hand-woven shoe industry to (a) investigate the design of hand tools currently used in hand-woven shoemaking operation and (b) design/redesign the tools' handles based on anthropometric tables and ergonomic...
Source: International Journal of Industrial Ergonomics - September 25, 2019 Category: Occupational Health Source Type: research

Automatic digital mood boards to connect users and designers with kansei engineering
This article investigates the possibility of building a kansei engineering system that is based on rough set probability statistics and is capable of linking kansei words obtained from clients with images that can be continuously collected online. The result is a proposal for a new kansei engineering procedure that contains five cycles and captures users' opinions in all phases of the design process. A subset of real data is used in the application of this procedure to a consumer product, which demonstrates the feasibility of this kind of application. The article presents a complete theoretical model of this system and its...
Source: International Journal of Industrial Ergonomics - September 18, 2019 Category: Occupational Health Source Type: research

Applying fuzzy theory in selecting the image quality factors of 3D televisions
This study applied fuzzy theory to construct a hierarchy of 3D TV image quality factors and got the weights for each of them. Several 3D TV image quality factors were selected based on a review of the literature. A fuzzy c-means algorithm was then used to classify these factors into the criteria, and the hierarchy of the fuzzy analytic network process (ANP) was established. Thirty participants were recruited to conduct the questionnaire survey and the rating of the overall ergonomics. Using the calculation of fuzzy ANP, the weights for 3D TV image quality factors and different brands of 3D TVs were obtained. The results in...
Source: International Journal of Industrial Ergonomics - September 16, 2019 Category: Occupational Health Source Type: research

Editorial Board
Publication date: September 2019Source: International Journal of Industrial Ergonomics, Volume 73Author(s): (Source: International Journal of Industrial Ergonomics)
Source: International Journal of Industrial Ergonomics - September 14, 2019 Category: Occupational Health Source Type: research

Publisher Note
Publication date: September 2019Source: International Journal of Industrial Ergonomics, Volume 73Author(s): (Source: International Journal of Industrial Ergonomics)
Source: International Journal of Industrial Ergonomics - September 14, 2019 Category: Occupational Health Source Type: research

Investigating interactions among vital variables affecting situation awareness based on Fuzzy DEMATEL method
This study aims to identify interactions among the most important individual, situational, and organizational variables affecting situation awareness in industrial workplaces. Using Fuzzy Delphi and Fuzzy DEMATEL methods, this study was conducted based on the data collected from experts’ judgments. The results show that organizational variables and some individual variables are the critical factors affecting situation awareness, and their effect is directly or indirectly created by situational and individual variables. The results of the study can be used to design proper guidelines for industry managers and employer...
Source: International Journal of Industrial Ergonomics - September 14, 2019 Category: Occupational Health Source Type: research

Hairdressers’ shoulder load when blow-drying – Studying the effect of a new blow dryer design on arm inclination angle and muscle pain
Publication date: November 2019Source: International Journal of Industrial Ergonomics, Volume 74Author(s): Morten Wærsted, Henrik Enquist, Kaj Bo VeierstedAbstractDuring nine months, nineteen hairdressers every second/third month switched the use between a blow dryer with traditional design and one with a new design. The new blow dryer had the possibility to change between two opposite directed air flows. Every second/third month arm inclination angle and upper trapezius muscle activity were measured a whole workday, and during blow-drying in the laboratory. Pronounced upper arm elevation was reduced with the new blo...
Source: International Journal of Industrial Ergonomics - September 14, 2019 Category: Occupational Health Source Type: research

A comparative study on subjective feeling of engine acceleration sound by automobile types
Publication date: November 2019Source: International Journal of Industrial Ergonomics, Volume 74Author(s): Donggun Park, Sunghwan Park, Wonjoon Kim, Ilsun Rhiu, Myung Hwan Yun (Source: International Journal of Industrial Ergonomics)
Source: International Journal of Industrial Ergonomics - September 13, 2019 Category: Occupational Health Source Type: research

Lumbar posture and individual flexibility influence back muscle flexion-relaxation phenomenon while sitting
This study, therefore, recruited 18 male students and assigned to low- and high-flexibility groups (9 in each). Activation of thoracic and lumbar erector spinae (ES) and lumbosacral angles were examined while participants sat in two postures (lordosis and kyphosis) and flexed their trunks at 15°, 30°, 45°, 60°, and maximum flexion. Results showed that kyphotic lumbar posture caused relatively low and unchangeable thoracic and lumbar ES activations, whereas lordotic lumbar posture engendered more contractive and varying thoracic and lumbar ES activations. Flexible participants exhibited higher thoracic ES ac...
Source: International Journal of Industrial Ergonomics - September 7, 2019 Category: Occupational Health Source Type: research

The investigation of work-related musculoskeletal disorders among female workers in a hazelnut factory: Prevalence, working posture, work-related and psychosocial factors
ConclusionsWMSDs are common among female workers in a hazelnut factory. Reorganizing of working posture, work-related factors, and stress at work may be beneficial to decrease the prevalence of WMSDs and pain severity.Relevance to Industry; The female workers in the hazelnut factory are vulnerable to the work-related musculoskeletal disorders, particularly in the spinal region. The employers should endeavor to improve the health of the workers by the adjustment of the working posture and environmental factors. (Source: International Journal of Industrial Ergonomics)
Source: International Journal of Industrial Ergonomics - September 5, 2019 Category: Occupational Health Source Type: research

Anthropometric characterisation of palm and finger shapes to complement current glove-sizing systems
Publication date: November 2019Source: International Journal of Industrial Ergonomics, Volume 74Author(s): Margarita Vergara, Maria-Jesus Agost, Vicente BayarriAbstractHand length and width have traditionally been considered key metrics for glove-sizing systems. Morphological differences in palm and finger shapes should also be considered for more accurate glove fitting.In this paper, finger and palm lengths of the five hand digits of 139 subjects from a Mediterranean population were measured. Hierarchical clusters and analysis of variance were applied to identify morphological differences. Three palm shapes and three fing...
Source: International Journal of Industrial Ergonomics - August 23, 2019 Category: Occupational Health Source Type: research

Underwater space suit performance assessments part 2: Reach envelopes as a comparative performance metric
This study assessed the reach envelopes as a quantitative metric to compare the mobility of different spacesuit types, namely the existing extravehicular mobility unit (EMU) and the newly developed prototype Z2. With Z2, two different configurations were considered: 1) Z2 paired with the EMU lower torso assembly (Z2-ELTA) and 2) Z2 with the mobile lower torso assembly (Z2-ZLTA). Five subjects performed reach motions in the underwater microgravity analog, including isolated hand and arm reaches (IHAR: arm sweeps at the shoulder) and whole-body reaches (WBR: reaches at extreme whole-body stretching/bending poses). The analys...
Source: International Journal of Industrial Ergonomics - August 21, 2019 Category: Occupational Health Source Type: research

The use of pressure mapping to assess the comfort of agricultural machinery seats
Publication date: Available online 14 August 2019Source: International Journal of Industrial ErgonomicsAuthor(s): Elio Romano, Marco Pirozzi, Marco Ferri, Aldo Calcante, Roberto Oberti, Ermanno Vitale, Venerando RapisardaAbstractInterface pressure measurement gives an objective value to human comfort. Prolonged sitting is known to contribute to musculoskeletal disorders. Driving a tractor involves several actions such as steering, operating levers, buttons, brake and clutch pedals, and looking behind to observe and maneuver the machine. These operations affect sitting posture and create a pattern of loading on the structur...
Source: International Journal of Industrial Ergonomics - August 16, 2019 Category: Occupational Health Source Type: research

The occupational illness of slum dwellers across industries: A case study in West Bengal
Discussions (FGDs). The determinants of the nature of occupational illness are analyzed with an ordered Logit model. The chronic illness like respiratory diseases are prevalent among the workers of jute textile industries, and musculoskeletal disorders are found mostly among the workers of small garment and consumable items industries. The prevalence of occupational injuries is common among the workers of the civil-mechanical and chemical industries. The difference in the Out-of-Pocket Health Expenditure (OOPE) between doctor's consultation and consumption of Over the Counter (OTC) drugs of the industrial workers might pre...
Source: International Journal of Industrial Ergonomics - August 14, 2019 Category: Occupational Health Source Type: research

Ergonomics demands associated with combinations of manual and powered emergency medical service cots and ambulance loading systems: A work simulation study
Publication date: September 2019Source: International Journal of Industrial Ergonomics, Volume 73Author(s): Jim R. Potvin, Aidan W. PotvinAbstractDigital human models were used to perform a virtual ergonomics assessment of manual and powered emergency medical services cots combined with both manual and powered ambulance loading systems. Simulations were run with all combinations of emergency medical technicians (EMTs), at 50 kg (female), 72 kg (female) and 125 kg (male) with cots containing no patient and patients of 125 kg and 159 kg. There was a substantial decrease in low back and upper extremity demands with ...
Source: International Journal of Industrial Ergonomics - August 10, 2019 Category: Occupational Health Source Type: research

Traditional and 3D scan extracted measurements of the heads and faces of Dutch children
Publication date: September 2019Source: International Journal of Industrial Ergonomics, Volume 73Author(s): Lyè Goto, Wonsup Lee, Johan F.M. Molenbroek, Annoesjka J. Cabo, Richard H.M. GoossensAbstract3D anthropometry has created a significant opportunity for designers to improve fit by offering detailed information regarding the shape of the human body. Various researchers have shown the benefit of using 3D anthropometric data in the development or evaluation of head related products for adults. However, detailed 3D anthropometric data of children heads and faces is still lacking. This paper presents up to date des...
Source: International Journal of Industrial Ergonomics - August 9, 2019 Category: Occupational Health Source Type: research

Editorial Board
Publication date: July 2019Source: International Journal of Industrial Ergonomics, Volume 72Author(s): (Source: International Journal of Industrial Ergonomics)
Source: International Journal of Industrial Ergonomics - July 31, 2019 Category: Occupational Health Source Type: research

The effects of load weight and load starting height on variability of lifting kinematics and kinetics
Publication date: September 2019Source: International Journal of Industrial Ergonomics, Volume 73Author(s): Hamid Norasi, Jordyn Koenig, Gary A. MirkaAbstractTrunk kinematic variables have been used to understand the risk of low back injuries in the workplace. Variability in the trunk kinematics as an individual performs a repetitive lifting task is an underexplored area of research. In the current study, it was hypothesized that workplace variables (starting height of lift and load weight) would have an impact on the variance in the kinematic and kinetic variables. Twenty participants performed 60 repetitions of an asymme...
Source: International Journal of Industrial Ergonomics - July 27, 2019 Category: Occupational Health Source Type: research

Experimental analysis of user forces by test bench and manual hammer drill experiments with regard to vibrations and productivity
Publication date: July 2019Source: International Journal of Industrial Ergonomics, Volume 72Author(s): Michael Uhl, Tim Bruchmüller, Sven MatthiesenAbstractThe user's forces have great influences on the load and on the drilling process of hammer drills. Hence, these influences must be known in product development for reproducible testing on test benches. Furthermore, manufacturers focus on developing hammer drills, which improve productivity and force-efficiency during application. Therefore, the aim of this study is to investigate the influences of the forces exerted by the user on a hammer drill when drilling in con...
Source: International Journal of Industrial Ergonomics - July 25, 2019 Category: Occupational Health Source Type: research

Evaluating autostereoscopic 3D baseball games using signal detection theory and receiver operating characteristic space
This study investigates the effects of display technique (2D, autostereoscopic 3D), ball speed (138, 140 km/h), and operation time (5, 10, 15 min) on the four outcomes of signal detection theory (SDT) (i.e., hit, miss, false alarm, correct rejection), β, d’, receiver operating characteristic (ROC) space, Simulator Sickness Questionnaire (SSQ), and the iGroup Presence Questionnaire (IPQ). The results indicated that the display technique was significant on the hit rate, SSQ, and IPQ, where a higher hit rate, visual fatigue, and IPQ were found in the 3D technique. The results also showed that the ball speed was...
Source: International Journal of Industrial Ergonomics - July 10, 2019 Category: Occupational Health Source Type: research

Effects of displays on a direct reaching task: A comparative study of head mounted display and stereoscopic widescreen display
This study was conducted to investigate the virtual display effects on direct interaction performance metrics such as accuracy, task completion time, and comfort. Eighteen participants performed tapping (pointing) tasks in the coronal plane by directly reaching for tapping targets at three egocentric distance levels, with three indices of difficulty at each egocentric distance. The position data and severity of cybersickness symptoms were collected with a motion system and a symptom questionnaire, respectively. The results indicated that accuracy was higher with the stereoscopic widescreen display than with the head mounte...
Source: International Journal of Industrial Ergonomics - July 6, 2019 Category: Occupational Health Source Type: research

Associations between low back muscle activity, pelvic movement and low back discomfort development during prolonged standing – An exploratory laboratory study
Publication date: July 2019Source: International Journal of Industrial Ergonomics, Volume 72Author(s): Rudolf Wall, Thomas Läubli, Robert Seibt, Monika A. Rieger, Benjamin SteinhilberAbstractLow back discomfort (LBD) is common in long-term standing work. The aim of this study was to investigate whether development of LBD during standing is related to lumbar muscle activity and pelvic movement. In a secondary analysis we investigated whether age, gender, and standing work habituation moderates the above-mentioned relationship. Sixty subjects (15 young females, 15 young males, 15 older males, and 15 young males habituat...
Source: International Journal of Industrial Ergonomics - July 6, 2019 Category: Occupational Health Source Type: research

Attention decrease of drivers exposed to vibration from military vehicles when driving in terrain conditions
In this study, we analyzed the phenomenon of reduced attention for 11 subjects using a 6-degree-of-freedom synthetic vibration platform to simulate the vibration from terrain driving. Military vehicles are mainly used in terrain conditions, and drivers are exposed to whole-body vibrations for long periods of time. Drivers not only have trouble with comfort and health, they also suffer decreased attention. This decrease has a negative effect on driving. The vibration signal of a military vehicle on terrain is simulated using a synthetic vibration platform. Eleven subjects experienced these synthesized field-terrain vibratio...
Source: International Journal of Industrial Ergonomics - July 4, 2019 Category: Occupational Health Source Type: research

Musculoskeletal pain in operating room nurses: Associations with quality of work life, working posture, socio-demographic and job characteristics
Publication date: July 2019Source: International Journal of Industrial Ergonomics, Volume 72Author(s): Elnaz Asghari, Iman Dianat, Farahnaz Abdollahzadeh, Fariba Mohammadi, Parinaz Asghari, Mohammad Asghari Jafarabadi, Héctor Ignacio CastellucciAbstractThis cross-sectional study evaluated the association of socio-demographic and job characteristics as well as quality of work life (QWL) and working posture with the presence of musculoskeletal pain (MSP) among 144 operating room (OR) nurses in Iran. A questionnaire (including the Nordic Musculoskeletal Questionnaire [NMQ] and the QWL questionnaire) and direct observat...
Source: International Journal of Industrial Ergonomics - July 3, 2019 Category: Occupational Health Source Type: research