Iranian Journal of Ergonomics最新文献

The Effect of the Presence of Others in Ergonomics and Human Factors Research 人体工程学和人为因素研究中他人存在的影响

Iranian Journal of Ergonomics Pub Date : 2023-12-12 DOI: 10.18502/iehfs.v10i1.14406

Payam Khanlari, Noorzaman Rashid

引用次数: 0

The Comparison of Fatigue and Trunk and Neck Postures during Working in Tailors with and Without Nonspecific Chronic Neck Pain 患有和未患有非特异性慢性颈痛的裁缝在工作期间的疲劳与躯干和颈部姿势的比较

Iranian Journal of Ergonomics Pub Date : 2023-12-12 DOI: 10.18502/iehfs.v10i1.14412

Hosein Hejazifar, R. Sheikhhoseini, Hashem Piri, P. Sayyadi

{"title":"The Comparison of Fatigue and Trunk and Neck Postures during Working in Tailors with and Without Nonspecific Chronic Neck Pain","authors":"Hosein Hejazifar, R. Sheikhhoseini, Hashem Piri, P. Sayyadi","doi":"10.18502/iehfs.v10i1.14412","DOIUrl":"https://doi.org/10.18502/iehfs.v10i1.14412","url":null,"abstract":"Objectives: Work-induced musculoskeletal pain disorders are among the most common problems among workers. This study aimed to compare fatigue and trunk and neck postures during work in tailors with and without nonspecific chronic neck pain. Methods: In this cross-sectional study, 30 sewing machine operators participated voluntarily and were divided in two groups of people with (15 persons) and without (15 persons) chronic nonspecific neck pain. The craniovertebral, cranial, and shoulder angles were calculated three intervals (at the start of work, after 2 hours of continuous work, after 4 hours of continuous work) using the photogrammetric method. Borg scale was used to examine work-induced fatigue. A one-way repeated measure analysis of variance at the significance level of 0.05 was used for data analysis. Results: There were significant differences in craniovertebral, cranial, and shoulder angle changes (P < 0.001) between the two groups while working. Postural trunk and neck changes were more evident in the nonspecific chronic neck pain group. However, there were no significant differences in terms of fatigue levels between the two groups (P = 0.639). Conclusion: The upper trunk related posture among workers with nonspecific chronic neck pain may be more negatively affected during work. So it is suggested that maintaining proper posture should be more emphasized among these workers.","PeriodicalId":504366,"journal":{"name":"Iranian Journal of Ergonomics","volume":"31 1-2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139182952","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}

引用次数: 0

Body Mass Index Classification based on Facial Features Using Machine Learning Algorithms for Utilizing in Telemedicine 利用机器学习算法根据面部特征进行体重指数分类，以便在远程医疗中使用

Iranian Journal of Ergonomics Pub Date : 2023-12-12 DOI: 10.18502/iehfs.v10i1.14407

Mahsa Heidari, F. B. Mofrad, Hamed Shah-Hosseini

{"title":"Body Mass Index Classification based on Facial Features Using Machine Learning Algorithms for Utilizing in Telemedicine","authors":"Mahsa Heidari, F. B. Mofrad, Hamed Shah-Hosseini","doi":"10.18502/iehfs.v10i1.14407","DOIUrl":"https://doi.org/10.18502/iehfs.v10i1.14407","url":null,"abstract":"Objectives: Given the benefits of controlling Body mass index (BMI) on the quality of life, BMI classification based on facial features can be used for developing telemedicine systems and eliminate the limitations of existing measuring tools especially for paralyzed people, that enable physicians to help people online when faced with situations like the COVID-19 pandemic. Methods: In this study, new features and some previous-work features were extracted from face photos of white, black and Asian people, ages 18 to 81, with normal and overweight BMI. Faces were evaluated in three different steps. First, all faces were considered as one group. Second, they were divided into elliptical, round and square shape groups and third, they were separated based on gender. Then for each step, the performances of Random Forest (RF) and Support Vector Machine (SVM) were evaluated with all of the facial features and with selected features based on Pearson correlation coefficient. Matlab R2015b was used for implementation. Results: The results revealed that features with higher correlation improved the accuracy of both algorithms. RF best performance using highly correlated features for 97 women and 92 men was in women and square-face groups (91.75% and 87.30% respectively), and SVM best performance was in women group (94.84%), square-face and round-face groups (84.12% and 84% respectively). Conclusion: Accuracy of BMI classification based on facial features can be improved by categorizing faces into shapes and gender, and selecting appropriate features. The findings can be used for performance enhancement of telemedicine applications, especially for helping the differently-abled.","PeriodicalId":504366,"journal":{"name":"Iranian Journal of Ergonomics","volume":"24 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139182127","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}

引用次数: 0

Investigating the Usability of the Integrated Research Automation System (SYAT): A Heuristic Evaluation 调查综合研究自动化系统（SYAT）的可用性：启发式评估

Iranian Journal of Ergonomics Pub Date : 2023-12-12 DOI: 10.18502/iehfs.v10i1.14411

Siavash Etemadinezhad, Elahe Amouzadeh, J. Charati

{"title":"Investigating the Usability of the Integrated Research Automation System (SYAT): A Heuristic Evaluation","authors":"Siavash Etemadinezhad, Elahe Amouzadeh, J. Charati","doi":"10.18502/iehfs.v10i1.14411","DOIUrl":"https://doi.org/10.18502/iehfs.v10i1.14411","url":null,"abstract":"Objectives: Today, many hardware and software products, including office automation software, and web-based websites are used by employees, including professors and employees of different departments in offices. Websites are considered one of the main competitive advantages in any organization. This study aims to investigate the usability of the Integrated Research Automation System (SYAT): A Heuristic Evaluation. Methods: The present study was a descriptive- cross- sectional study with a heuristic evaluation performed on the integrated research system software (SYAT) by 3 evaluators. They then evaluated the intensity of each of the ten options and scored from 0 to 4. After each problem was classified as one of the 10 branches of Nielsen's evaluation by the evaluators, similar problems were eliminated and the average scores and the severity of the deterioration of the problems were calculated. Results: A total of 92 usability problems were identified in evaluating the usability of the web-based software (system) using the components provided by Nielsen. The majority of the issues were related to the detection instead of reminder with 16 problems (17.32%). The lowest number of problems was related to both compatibilities between the system and the real world, and the clarity of the system status with 6 cases (6.52%). Conclusion: The usability assessment method is inexpensive and simple and the problems caused by websites and applications can be evaluated as feedback to improve them. The more accurate the needs of SYAT system users are, the more effective the system will be and the more satisfied the users will be.","PeriodicalId":504366,"journal":{"name":"Iranian Journal of Ergonomics","volume":"26 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139182762","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}

引用次数: 0

Evaluation of the Effect of Balance Training on Postural Control in People with Chronic Ankle Instability Against External Disturbances 评估平衡训练对慢性踝关节失稳患者对抗外部干扰的姿势控制效果

Iranian Journal of Ergonomics Pub Date : 2023-12-12 DOI: 10.18502/iehfs.v10i1.14408

Hadi Miri, Seyed Sadraldin Shojaaldin, Amirhosein Barati, Maliheh Hadadnejad, Shahram Ahanjan

{"title":"Evaluation of the Effect of Balance Training on Postural Control in People with Chronic Ankle Instability Against External Disturbances","authors":"Hadi Miri, Seyed Sadraldin Shojaaldin, Amirhosein Barati, Maliheh Hadadnejad, Shahram Ahanjan","doi":"10.18502/iehfs.v10i1.14408","DOIUrl":"https://doi.org/10.18502/iehfs.v10i1.14408","url":null,"abstract":"Objectives: Ankle sprain leads to a decrease in proprioception and awareness of the sense of motion with motor consequences. On the other hand, damage to this joint is an important factor in affecting balance and consequently re-injury. Strengthening the factors that help maintain balance and posture, can be a basic strategy in the treatment of balance and postural problems, as well as injuries. Methods: In this quasi-experimental study, 30 patients with chronic ankle instability were randomly divided into experimental and control groups. Both groups were pre-tested and the experimental group performed core stability exercises against gravity for six weeks. Post-test was taken again from both groups. Data were analyzed using one-way analysis of covariance. Statistical operations were performed at a significant level of α ≤ 0.05. Results: Postural control index in the experimental group was higher in the first position and lower than the other in the sixth position. The mean of the postural control index in the experimental group was significant compared to the control group (α ≤ 0.05). Conclusion: Performing exercises for core stability or training on unstable surfaces deploying sensory receptors is likely to cause the muscles to be more actively involved and the central nervous system to receive more appropriate and effective stimuli from the nerves of different sensory receptors, and thus this exercises improve postural stability.","PeriodicalId":504366,"journal":{"name":"Iranian Journal of Ergonomics","volume":"16 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139182158","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}

引用次数: 0

The Effect of Environmental and Ergonomic Stimuli of the Work Environment on Employees’ Behavior by the Mediating Role of General Health 通过一般健康状况的中介作用看工作环境和人体工程学刺激对员工行为的影响

Iranian Journal of Ergonomics Pub Date : 2023-12-12 DOI: 10.18502/iehfs.v10i1.14410

M. Fadaei, M. Homayounfar, M. Soufi, A. Daneshvar

{"title":"The Effect of Environmental and Ergonomic Stimuli of the Work Environment on Employees’ Behavior by the Mediating Role of General Health","authors":"M. Fadaei, M. Homayounfar, M. Soufi, A. Daneshvar","doi":"10.18502/iehfs.v10i1.14410","DOIUrl":"https://doi.org/10.18502/iehfs.v10i1.14410","url":null,"abstract":"Objectives: Considering the importance of employees' behavior in service organizations and its significant impact on their success and failure, the present study investigates the environmental and ergonomic factors affecting the mental health and behavior of employees in one of the branches of Islamic Azad University. Methods: The present study is applied in terms of purpose and descriptive-correlational in terms of data gathering and analysis. The statistical population of the study includes: 315 employees of Rasht Branch of Azad University, out of them 196 people were selected by random sampling method and the necessary data were collected using a questionnaire. Structural equation modeling and SMART PLS3 software were used to test the hypotheses. Results: According to the findings, workplace layout affects on use of work equipment (0.389), use of office chair (0.252) and environmental conditions (0.538), but the effect of workplace layout on the posture of employees was not confirmed in 5 percent significance level. Also, the effect of posture (0.586), layout (0.440), work equipment (0.458), office chair (0.345) and environmental conditions (0.550) on public health and also the effect of general health (0.690) and environmental conditions (0.158) on employees’ behavior is significant. Examining the indirect relationships of the research model also shows that workplace layout affects employee behavior through the general health and environmental conditions. Workplace layout influences employees’ behavior through work equipment, office chair, environment conditions and general health. Conclusion: The indirect effect of workplace layout on employees’ behavior through public health has the highest impact (0.304), therefore, making policies for the general health, can improve employees’ behavior.","PeriodicalId":504366,"journal":{"name":"Iranian Journal of Ergonomics","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139182567","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}

引用次数: 0

Assessment of Mental Workload Nurses in COVID-19 Pandemic 评估 COVID-19 大流行中护士的心理工作量

Iranian Journal of Ergonomics Pub Date : 2023-12-12 DOI: 10.18502/iehfs.v10i1.14413

Davood Afshari, M. Nourollahi-Darabad, Noorollah Karimi, Maryam Seyyed Tabib

{"title":"Assessment of Mental Workload Nurses in COVID-19 Pandemic","authors":"Davood Afshari, M. Nourollahi-Darabad, Noorollah Karimi, Maryam Seyyed Tabib","doi":"10.18502/iehfs.v10i1.14413","DOIUrl":"https://doi.org/10.18502/iehfs.v10i1.14413","url":null,"abstract":"Objectives: Nurses are at the front line of treatment and coping with COVID-19 pandemic. Therefore, the present study investigates the pandemic’s impact on nurses ’mental workload and determines its predictive factors. Methods: This descriptive-analytical study was done on 234 nurses in two groups working at COVID-19 and non-COVID-19 wards in 2020. The criteria for entering the study were the absence of psychological problems. Data was gathered using the General Health Questionnaire, NASA-TLX, and Demographic Questionnaire. Results: The mean of the overall mental workload score in the group of nurses working at the Covid-19 wards (70.09 ± 2.51) was higher than the group of nurses working in the non-COVID-19 wards (66.55 ± 2.02). This difference was significant (P = 0.01). There was a significant difference between the mean score of the mental demand, the physical demand, the temporal demand, and the frustration level of the two groups. With the exception of performance, the group of nurses working in the corona ward had a higher mean score in all aspects. In the proposed linear model, 16% of the overall changes in mental workload depended on two variables, which were age and work experience. The work experience was the most influential factor in predicting nurses' mental workload. Conclusion: The findings of the present study showed the importance of paying attention to the mental workload of nurses as well as personal and occupational factors affecting mental workload in the conditions of the COVID-19 pandemic. Therefore, control and management of effective factors can help reduce mental workload, especially during pandemic conditions.","PeriodicalId":504366,"journal":{"name":"Iranian Journal of Ergonomics","volume":"126 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139182107","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}

引用次数: 0