Pub Date : 2021-06-25DOI: 10.1080/1463922X.2021.1940351
H. N. Kim, S. Sutharson
Abstract As COVID-19 is contagious, researchers stop or delay the data collection requiring in-person meetings with research participants. Potential research participants may consciously or unconsciously change the perspective about human subjects research, probably leading to developing reluctance to participate in it. This study aims to advance knowledge of how potential research participants develop, sustain, and/or change their perspective towards human subjects research during the COVID-19 pandemic as well as how to adequately address their needs and concerns. A convenient sample of 28 participants with visual impairments and blindness completed a phone interview. The interview data were analyzed via open coding, axial coding, and selective coding. The data analysis resulted in 7 main themes and 10 subthemes that covered the study preparations and procedures. We referred to Rogers’ Diffusion of Innovation Theory to discuss a set of facilitators to resolve potential participants’ uncertainty and concern about participating in human subjects research.
{"title":"Concerns and needs of research participants with visual disabilities amid the COVID-19 pandemic","authors":"H. N. Kim, S. Sutharson","doi":"10.1080/1463922X.2021.1940351","DOIUrl":"https://doi.org/10.1080/1463922X.2021.1940351","url":null,"abstract":"Abstract As COVID-19 is contagious, researchers stop or delay the data collection requiring in-person meetings with research participants. Potential research participants may consciously or unconsciously change the perspective about human subjects research, probably leading to developing reluctance to participate in it. This study aims to advance knowledge of how potential research participants develop, sustain, and/or change their perspective towards human subjects research during the COVID-19 pandemic as well as how to adequately address their needs and concerns. A convenient sample of 28 participants with visual impairments and blindness completed a phone interview. The interview data were analyzed via open coding, axial coding, and selective coding. The data analysis resulted in 7 main themes and 10 subthemes that covered the study preparations and procedures. We referred to Rogers’ Diffusion of Innovation Theory to discuss a set of facilitators to resolve potential participants’ uncertainty and concern about participating in human subjects research.","PeriodicalId":22852,"journal":{"name":"Theoretical Issues in Ergonomics Science","volume":"23 1","pages":"277 - 289"},"PeriodicalIF":1.6,"publicationDate":"2021-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/1463922X.2021.1940351","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43606011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-22DOI: 10.1080/1463922X.2021.1938281
A. Soltanzadeh, Mohsen Sadeghi Yarandi, Mostafa Mirzaei Aliabadi, M. Mahdinia
Abstract Human error is the result of different variables the study of which helps prevent committing such errors. This study aimed at modeling the cause-and-effect relationships among different variables that can predict human error based on the fuzzy multi-criteria decision-making method. The study was carried out based on the opinions of 17 safety experts in 2020. The variables of the study were determined by reviewing previous research and the expert panel’s brainstorming process. The results revealed that among 14 studied variables, shift work, job satisfaction, environmental discomfort and role conflict can be singled out as the root causes of human error. Although human error is affected by each studied variable, each variable can influence human error differently. Hence, safety and controlling measures presented to reduce and prevent human error need to take into account the different roles and influence weight of variables. The result of this study is applicable to researchers and managers in different work environments.
{"title":"Modeling cause-and-effect relationships among predictive variables of human error based on the fuzzy multi-criteria decision-making method","authors":"A. Soltanzadeh, Mohsen Sadeghi Yarandi, Mostafa Mirzaei Aliabadi, M. Mahdinia","doi":"10.1080/1463922X.2021.1938281","DOIUrl":"https://doi.org/10.1080/1463922X.2021.1938281","url":null,"abstract":"Abstract Human error is the result of different variables the study of which helps prevent committing such errors. This study aimed at modeling the cause-and-effect relationships among different variables that can predict human error based on the fuzzy multi-criteria decision-making method. The study was carried out based on the opinions of 17 safety experts in 2020. The variables of the study were determined by reviewing previous research and the expert panel’s brainstorming process. The results revealed that among 14 studied variables, shift work, job satisfaction, environmental discomfort and role conflict can be singled out as the root causes of human error. Although human error is affected by each studied variable, each variable can influence human error differently. Hence, safety and controlling measures presented to reduce and prevent human error need to take into account the different roles and influence weight of variables. The result of this study is applicable to researchers and managers in different work environments.","PeriodicalId":22852,"journal":{"name":"Theoretical Issues in Ergonomics Science","volume":"23 1","pages":"259 - 276"},"PeriodicalIF":1.6,"publicationDate":"2021-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/1463922X.2021.1938281","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47649096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-14DOI: 10.1080/1463922X.2021.1936277
J. Schraagen, J. Barnhoorn, Jef van Schendel, Willeke van Vught
Abstract Multi-level human-autonomy teaming in a distributed mission context consists of multiple manned and unmanned systems that require flexible decision making authority. We introduce the notion of ‘hybrid multi-team systems’ to refer to multiple teams consisting of n-number of humans and n-number of semi-autonomous agents having interdependence relationships with each other. Based on the coactive design approach, we have developed a set of design patterns that provide team members with real-time information on interdependencies and can therefore support observability, predictability and directability of interdependencies in a hybrid team. We demonstrate the viability of the design patterns for providing observability, predictability and directability for several hybrid teams of humans and semi-autonomous agents.
{"title":"Supporting teamwork in hybrid multi-team systems","authors":"J. Schraagen, J. Barnhoorn, Jef van Schendel, Willeke van Vught","doi":"10.1080/1463922X.2021.1936277","DOIUrl":"https://doi.org/10.1080/1463922X.2021.1936277","url":null,"abstract":"Abstract Multi-level human-autonomy teaming in a distributed mission context consists of multiple manned and unmanned systems that require flexible decision making authority. We introduce the notion of ‘hybrid multi-team systems’ to refer to multiple teams consisting of n-number of humans and n-number of semi-autonomous agents having interdependence relationships with each other. Based on the coactive design approach, we have developed a set of design patterns that provide team members with real-time information on interdependencies and can therefore support observability, predictability and directability of interdependencies in a hybrid team. We demonstrate the viability of the design patterns for providing observability, predictability and directability for several hybrid teams of humans and semi-autonomous agents.","PeriodicalId":22852,"journal":{"name":"Theoretical Issues in Ergonomics Science","volume":"23 1","pages":"199 - 220"},"PeriodicalIF":1.6,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/1463922X.2021.1936277","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43159275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-05-21DOI: 10.1080/1463922X.2021.1922780
Pimporn Kluay-On, M. Chaikumarn
Abstract Musculoskeletal disorders (MSDs) have a multifactorial etiology, therefore, their assessment should consider all of individual, physical and psychosocial factors. The Ergonomic risk assessment for musculoskeletal disorders in office workers (ERAMO) is a few specific tools available to evaluate the nature and occurrence of MSDs in office workers and the impact of individual and ergonomic aspects of office workers. The purpose of this study was to perform a construct validity (confirmatory factor analysis; CFA) and verify the reliability, internal consistency of the ERAMO in office workers. A sample of 300 workers from two of government enterprise in Bangkok, Thailand participated in this validation and internal consistency analysis. Intraclass correlation coefficient was used for the statistical analysis of test-retest reliability. The calculation of internal consistency, reproducibility provided evidence of reliability and lack of redundancy. The psychometric properties of the ERAMO were assessed using CFA, which revealed 3 models. For 2 models, the comparative fit index (CFI), goodness-of-fit index (GFI), and non-normed fit index (NNFI) each achieved 0.90, the Chi-square and root mean square error of approximation (RMSEA) demonstrated better values. The results provided this ERAMO tool is a choice that can use for ergonomic risk assessment in office workers. Supplemental data for this article is available online at https://doi.org/10.1080/1463922X.2021.1922780 .
{"title":"Construct validity, internal consistency and test-retest reliability of ergonomic risk assessment for musculoskeletal disorders in office workers (ERAMO)","authors":"Pimporn Kluay-On, M. Chaikumarn","doi":"10.1080/1463922X.2021.1922780","DOIUrl":"https://doi.org/10.1080/1463922X.2021.1922780","url":null,"abstract":"Abstract Musculoskeletal disorders (MSDs) have a multifactorial etiology, therefore, their assessment should consider all of individual, physical and psychosocial factors. The Ergonomic risk assessment for musculoskeletal disorders in office workers (ERAMO) is a few specific tools available to evaluate the nature and occurrence of MSDs in office workers and the impact of individual and ergonomic aspects of office workers. The purpose of this study was to perform a construct validity (confirmatory factor analysis; CFA) and verify the reliability, internal consistency of the ERAMO in office workers. A sample of 300 workers from two of government enterprise in Bangkok, Thailand participated in this validation and internal consistency analysis. Intraclass correlation coefficient was used for the statistical analysis of test-retest reliability. The calculation of internal consistency, reproducibility provided evidence of reliability and lack of redundancy. The psychometric properties of the ERAMO were assessed using CFA, which revealed 3 models. For 2 models, the comparative fit index (CFI), goodness-of-fit index (GFI), and non-normed fit index (NNFI) each achieved 0.90, the Chi-square and root mean square error of approximation (RMSEA) demonstrated better values. The results provided this ERAMO tool is a choice that can use for ergonomic risk assessment in office workers. Supplemental data for this article is available online at https://doi.org/10.1080/1463922X.2021.1922780 .","PeriodicalId":22852,"journal":{"name":"Theoretical Issues in Ergonomics Science","volume":"23 1","pages":"121 - 130"},"PeriodicalIF":1.6,"publicationDate":"2021-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/1463922X.2021.1922780","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47718076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-04-01DOI: 10.1080/1463922X.2021.1889710
E. Suhir
Abstract This analysis is aimed at quantification, on the probabilistic basis, of the significance of driver fatigue and drowsiness (DD) in automated and manual driving conditions; the impact of driving time on the probability of an accident, because of the driver’s fatigue and possible drowsiness, and the observation that age groups of 20–25 and 65–70 are more prone to making a human fatigue and/or DD related error than the 26–64 old group. Our analyses are based on the application of the recently suggested double exponential probability distribution function (DEPDF), and on using entropy and adequate-trust based considerations. The general concepts are illustrated by numerical examples. It is concluded that analytical modeling technique employed in this study should complement, whenever possible, statistical analyses and computer simulations in challenging ergonomics tasks, including those of the type in question.
{"title":"Driver propensity to fatigue and drowsiness: a probabilistic approach","authors":"E. Suhir","doi":"10.1080/1463922X.2021.1889710","DOIUrl":"https://doi.org/10.1080/1463922X.2021.1889710","url":null,"abstract":"Abstract This analysis is aimed at quantification, on the probabilistic basis, of the significance of driver fatigue and drowsiness (DD) in automated and manual driving conditions; the impact of driving time on the probability of an accident, because of the driver’s fatigue and possible drowsiness, and the observation that age groups of 20–25 and 65–70 are more prone to making a human fatigue and/or DD related error than the 26–64 old group. Our analyses are based on the application of the recently suggested double exponential probability distribution function (DEPDF), and on using entropy and adequate-trust based considerations. The general concepts are illustrated by numerical examples. It is concluded that analytical modeling technique employed in this study should complement, whenever possible, statistical analyses and computer simulations in challenging ergonomics tasks, including those of the type in question.","PeriodicalId":22852,"journal":{"name":"Theoretical Issues in Ergonomics Science","volume":"23 1","pages":"104 - 120"},"PeriodicalIF":1.6,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/1463922X.2021.1889710","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43038904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-03-31DOI: 10.1080/1463922X.2021.1901321
Riba Maria Kurian, Shinto K Thomas
Abstract The Information Technology (IT) industry in India is an integral part of the nation’s economy. The COVID-19 pandemic is a cause of disquietude and is probably the gravest challenge encountered by the IT industry at present. Although the IT industry has contributed to varied sectors globally amid the crisis, IT professionals encounter a profusion of mental health challenges. Despite this, there have as yet been limited studies focusing on the mental health impact on IT professionals during this period. This study strives to explore the role of socio-demographic factors on perceived stress and to examine the association between gratitude and perceived stress among IT professionals in India during the pandemic. Data from 219 participants were included for analysis in this cross-sectional, correlational study. Findings suggest that there exists a significant difference in perceived stress based on gender, marital status, and parental status. Furthermore, the results demonstrate a significant negative association between gratitude and perceived stress. The study contributes to the field of cognitive ergonomics and broadens the theoretical knowledge base of perceived stress based on socio-demographic elements. Findings also have positive implications for organisational psychologists as they suggest that encouraging a focus on gratitude could aid in lower perceived stress.
{"title":"Perceived stress among information technology professionals in India during the COVID-19 pandemic","authors":"Riba Maria Kurian, Shinto K Thomas","doi":"10.1080/1463922X.2021.1901321","DOIUrl":"https://doi.org/10.1080/1463922X.2021.1901321","url":null,"abstract":"Abstract The Information Technology (IT) industry in India is an integral part of the nation’s economy. The COVID-19 pandemic is a cause of disquietude and is probably the gravest challenge encountered by the IT industry at present. Although the IT industry has contributed to varied sectors globally amid the crisis, IT professionals encounter a profusion of mental health challenges. Despite this, there have as yet been limited studies focusing on the mental health impact on IT professionals during this period. This study strives to explore the role of socio-demographic factors on perceived stress and to examine the association between gratitude and perceived stress among IT professionals in India during the pandemic. Data from 219 participants were included for analysis in this cross-sectional, correlational study. Findings suggest that there exists a significant difference in perceived stress based on gender, marital status, and parental status. Furthermore, the results demonstrate a significant negative association between gratitude and perceived stress. The study contributes to the field of cognitive ergonomics and broadens the theoretical knowledge base of perceived stress based on socio-demographic elements. Findings also have positive implications for organisational psychologists as they suggest that encouraging a focus on gratitude could aid in lower perceived stress.","PeriodicalId":22852,"journal":{"name":"Theoretical Issues in Ergonomics Science","volume":"23 1","pages":"182 - 198"},"PeriodicalIF":1.6,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/1463922X.2021.1901321","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44873157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-03-22DOI: 10.1080/1463922X.2021.1898061
Charu M. Maurya, Nitin Maurya
Abstract The use of ergonomics principles can be traced back to ancient times, much before the coining of the term ‘ergonomics’. Ancient civilisations of Greece, China, and India followed well laid down principles of usability and human factors. These are evident in their furniture design, tool design, and other practices to minimise workers’ workload. In ancient India, most daily activities like cooking, dining, defecation, etc., and occupations like pottery making, shoemaking, education in gurukuls (traditional residential schools), etc., used one or the other asanas (postures). The aim was to maintain the body’s natural shape, avoiding the ill effects of poor body posture. The present paper reviews those domains of practice viz. posture, architecture, agriculture and furniture design in ancient India (2500 BCE to 1100 CE), where modern ergonomics principles seem evident.
{"title":"Ancient Indian ergonomics wisdom and its contemporary significance","authors":"Charu M. Maurya, Nitin Maurya","doi":"10.1080/1463922X.2021.1898061","DOIUrl":"https://doi.org/10.1080/1463922X.2021.1898061","url":null,"abstract":"Abstract The use of ergonomics principles can be traced back to ancient times, much before the coining of the term ‘ergonomics’. Ancient civilisations of Greece, China, and India followed well laid down principles of usability and human factors. These are evident in their furniture design, tool design, and other practices to minimise workers’ workload. In ancient India, most daily activities like cooking, dining, defecation, etc., and occupations like pottery making, shoemaking, education in gurukuls (traditional residential schools), etc., used one or the other asanas (postures). The aim was to maintain the body’s natural shape, avoiding the ill effects of poor body posture. The present paper reviews those domains of practice viz. posture, architecture, agriculture and furniture design in ancient India (2500 BCE to 1100 CE), where modern ergonomics principles seem evident.","PeriodicalId":22852,"journal":{"name":"Theoretical Issues in Ergonomics Science","volume":"23 1","pages":"245 - 258"},"PeriodicalIF":1.6,"publicationDate":"2021-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/1463922X.2021.1898061","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47807591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-03-03DOI: 10.1080/1463922X.2021.1881653
Bridie Luva, A. Naweed
Abstract Communication errors feature prevalently as causal and contributory factors in accident analysis within rail. While matters of phraseology and protocol in communication have been used to categorise communication error, formal inquiries into major rail accidents point to an underlying “authority gradient” as an influencing factor. The aim of this paper was to understand how the influence of authority gradients on communication error has been explored by communities of research and practice in rail. To achieve a holistic understanding and identification of key research gaps, this paper also reviewed prevalent tools and frameworks applied in rail human factors, as well as other sectors impacted by power disparities between teams. The review found that while evidence from industry reports is suggestive of an authority gradient in rail, no research has been conducted to support or refute this conclusion. Moreover, an absence of authority gradients in applied research draws attention to current methodological capabilities vs research foci. The relationship between the authority/power and status/value of core rail operational functions is conceptualised, and application of Hofstede’s theory of power distance to rail is considered. A number of research gaps are identified which indicate future research opportunities.
{"title":"Authority gradients between team workers in the rail environment: a critical research gap","authors":"Bridie Luva, A. Naweed","doi":"10.1080/1463922X.2021.1881653","DOIUrl":"https://doi.org/10.1080/1463922X.2021.1881653","url":null,"abstract":"Abstract Communication errors feature prevalently as causal and contributory factors in accident analysis within rail. While matters of phraseology and protocol in communication have been used to categorise communication error, formal inquiries into major rail accidents point to an underlying “authority gradient” as an influencing factor. The aim of this paper was to understand how the influence of authority gradients on communication error has been explored by communities of research and practice in rail. To achieve a holistic understanding and identification of key research gaps, this paper also reviewed prevalent tools and frameworks applied in rail human factors, as well as other sectors impacted by power disparities between teams. The review found that while evidence from industry reports is suggestive of an authority gradient in rail, no research has been conducted to support or refute this conclusion. Moreover, an absence of authority gradients in applied research draws attention to current methodological capabilities vs research foci. The relationship between the authority/power and status/value of core rail operational functions is conceptualised, and application of Hofstede’s theory of power distance to rail is considered. A number of research gaps are identified which indicate future research opportunities.","PeriodicalId":22852,"journal":{"name":"Theoretical Issues in Ergonomics Science","volume":"23 1","pages":"155 - 181"},"PeriodicalIF":1.6,"publicationDate":"2021-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/1463922X.2021.1881653","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42929946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-02-25DOI: 10.1080/1463922X.2021.1879308
Benjamin Camblor, Jean-Marc Salotti, Charles Fage, D. Daney
Abstract We adopted an approach based on interactions in a robotic workspace, coupled with Endsley’s model of Situation Awareness (SA), to identify factors that potentially degrade operators’ SA: the eight SA demons. We propose here to study the implications of these demons in 45 industrial accidents involving robotic. These demons were associated with possible interactions a human may have in a robotic workspace. Our results showed that five of the eight SA demons appeared in the accident reports examined. The results showed that the identified SA demons were mainly associated with the first level of SA (perception level). We have also been able to describe five patterns of SA demon occurence in these accidents. SA demons are generally involved in human-robot interactions rather than human-environment interactions. Thanks to this analysis, we found that an operator’s SA is mainly impacted by the Errant Mental Model and Out-of-the-Loop SA demons in human-robot and human-environment interactions. Finally, we propose recommendations regarding workspace design.
{"title":"Degraded situation awareness in a robotic workspace: accident report analysis","authors":"Benjamin Camblor, Jean-Marc Salotti, Charles Fage, D. Daney","doi":"10.1080/1463922X.2021.1879308","DOIUrl":"https://doi.org/10.1080/1463922X.2021.1879308","url":null,"abstract":"Abstract We adopted an approach based on interactions in a robotic workspace, coupled with Endsley’s model of Situation Awareness (SA), to identify factors that potentially degrade operators’ SA: the eight SA demons. We propose here to study the implications of these demons in 45 industrial accidents involving robotic. These demons were associated with possible interactions a human may have in a robotic workspace. Our results showed that five of the eight SA demons appeared in the accident reports examined. The results showed that the identified SA demons were mainly associated with the first level of SA (perception level). We have also been able to describe five patterns of SA demon occurence in these accidents. SA demons are generally involved in human-robot interactions rather than human-environment interactions. Thanks to this analysis, we found that an operator’s SA is mainly impacted by the Errant Mental Model and Out-of-the-Loop SA demons in human-robot and human-environment interactions. Finally, we propose recommendations regarding workspace design.","PeriodicalId":22852,"journal":{"name":"Theoretical Issues in Ergonomics Science","volume":"23 1","pages":"60 - 79"},"PeriodicalIF":1.6,"publicationDate":"2021-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/1463922X.2021.1879308","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47759288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-02-22DOI: 10.1080/1463922X.2021.1893406
A. Mumani, R. Stone, Amer M. Momani
Abstract The use of ergonomic evaluation tools can help in identifying the potential for musculoskeletal disorders (MSDs) arising from the design of work tasks. Rapid upper limb assessment (RULA) and rapid entire body assessment (REBA) are ergonomic assessment tools developed to evaluate the risks associated with these disorders. Both tools primarily evaluate these risks by examining body joint angle inputs, specifically by estimating a single joint angle, but in realistic situations, a full range of angles experienced is required to produce reliable evaluation. Furthermore, users of these tools may be uncertain of his/her estimation, especially if only a single joint angle is considered. A new approach based on Monte-Carlo simulation (MCS) in which joint angles are represented in distributions instead of single values is proposed to handle such issues. An empirical example is presented to compare traditional RULA and REBA to Monte-Carlo-RULA/Monte-Carlo-REBA approaches. The proposed approach exhibited a higher degree of sensitivity with respect to joint angles associated with variability and uncertainty.
{"title":"An application of Monte-Carlo simulation to RULA and REBA","authors":"A. Mumani, R. Stone, Amer M. Momani","doi":"10.1080/1463922X.2021.1893406","DOIUrl":"https://doi.org/10.1080/1463922X.2021.1893406","url":null,"abstract":"Abstract The use of ergonomic evaluation tools can help in identifying the potential for musculoskeletal disorders (MSDs) arising from the design of work tasks. Rapid upper limb assessment (RULA) and rapid entire body assessment (REBA) are ergonomic assessment tools developed to evaluate the risks associated with these disorders. Both tools primarily evaluate these risks by examining body joint angle inputs, specifically by estimating a single joint angle, but in realistic situations, a full range of angles experienced is required to produce reliable evaluation. Furthermore, users of these tools may be uncertain of his/her estimation, especially if only a single joint angle is considered. A new approach based on Monte-Carlo simulation (MCS) in which joint angles are represented in distributions instead of single values is proposed to handle such issues. An empirical example is presented to compare traditional RULA and REBA to Monte-Carlo-RULA/Monte-Carlo-REBA approaches. The proposed approach exhibited a higher degree of sensitivity with respect to joint angles associated with variability and uncertainty.","PeriodicalId":22852,"journal":{"name":"Theoretical Issues in Ergonomics Science","volume":"22 1","pages":"673 - 688"},"PeriodicalIF":1.6,"publicationDate":"2021-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/1463922X.2021.1893406","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43990138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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