Showing 4 results for Sadeghi Naeini
Hassan Sadeghi Naeini, Maryam Arabshahi,
Volume 9, Issue 2 (6-2019)
Abstract
One of the main goals of all societies whether in developed or developing countries is sustainable development and quality of life improvement. Both of the mentioned fields are known as critical subjects for urban planners, health care systems authorities, organizations and industrial sectors managers. Sustainable development is a global and human-centered approach. Also, ergonomics as a multidisciplinary science has a user center approach in which the quality of life plays a prominent role. The main objective of this article is developing a synergy between ergonomics and sustainability. This research consisted of two parallel phases. The first phase included a review in which two keywords of “ergonomics and sustainability” were considered in PubMed and EBSCO. After following the including and excluding criteria, 12 final articles were assessed. The second phase, was a descriptive study based on questionnaires among 38 participants. According to articles, in-depth evaluation and data gathering throughout questionnaires, it seems that to make a synergy between ergonomics and sustainability especially based on social aspects of both mentioned firms will be ended to effective and feasible planning towards industrial ergonomics and work-related quality of life.
Zutiqa Aqmar Yazuli, Putri Anis Syahira Mohamad Jamil, Nur Athirah Diyana Mohammad Yusof, Karmegam Karuppiah, Enoch Kumar Perimal, Hassan Sadeghi Naeini, Sivasankar Sambasivam, Puvanasvaran A. Perumal,
Volume 12, Issue 3 (9-2022)
Abstract
Introduction: The manufacturing, service professions, and other occupations commonly require their employees to spend more than 2 hours of their workday in an upright position which can potentially cause temporary or permanent health effects. The objective of this study is to determine the effect of anti-fatigue mats on leg muscle discomfort and muscle activity due to prolonged standing.
Material and Methods: A total of 100 workers were involved in the study. The control and experimental group stood for 2 hours in a controlled room with or without the anti-fatigue mat while sorting an assortment of mixed items. Borg’s scale questionnaire and EMG signals were used to monitor the muscle discomfort and activity of the respondents.
Results: The discomfort ratings and muscle activity in the experimental group were always at lower levels compared to the control group, which meant there was a reduction in mean perceived exertion rating for the knees, calves, and feet, i.e., 1.8, 2.5 and 2.6, respectively. The results showed that there was a statistically significant (P < 0.001) difference in the Borg’s scale of discomfort ratings and leg muscle activity between both groups.
Conclusion: The anti-fatigue mat can have a positive effect in preventing muscle discomfort and reduce muscle activity among the respondents during prolonged standing.
Mousa Jabbari, Hassan Sadeghi Naeini, Parvin Sepehr,
Volume 13, Issue 4 (12-2023)
Abstract
Introduction: Falls from height rank among the most frequent accidents encountered in construction workplaces. To mitigate such risks, the utilization of suitable personal fall protection equipment, including safety harnesses, proves to be an effective control measure.
Material and Methods: This study involved a comprehensive review of articles pertaining to the study’s objective, published in renowned scientific journals between 2000 and 2021. To achieve this, a meticulous search was conducted across ten scientific-specialized databases, employing eight keywords: “Full body harness,” “fall arrest systems,” “industrial harness,” “harness ergonomic,” “design procedures harness,” “standard for harness,” “fall protection,” and “P.P.E work at height.” The search yielded a collection of relevant articles for analysis and examination.
Results: A total of 101 articles were gathered through the utilization of the specified keywords. Subsequently, a meticulous review process led to the selection of 23 relevant articles for inclusion in the primary study. These chosen articles were categorized into two distinct groups: one focused on the “design of harnesses and optimization of fall arrest systems,” while the other delved into “studies on the consequences of suspension from a height and its effects.” Our findings revealed that 34.7% of the studies evaluated harness safety, 34.7% examined harness ergonomics, and 30.3% investigated suspension consequences.
Conclusion: When a harness is suspended, it leads to physiological changes. Notably, no studies have reported any fatalities resulting from harness suspension. However, the longevity of the suspension greatly depends on utilizing the appropriate harness accessories. The most significant challenge lies in the ergonomic design of the harnesses.
Parvin Sepehr, Mousa Jabbari, Hassan Sadeghi Naeini, Ali Salehi Sahl Abadi, Mansour Ziaei, Vahid Ahmadi Moshiran, Maryam Ahmadian, Younes Mehrifar,
Volume 14, Issue 3 (10-2024)
Abstract
Introduction: The safety harness is a critical device for preventing falls from height, particularly in the construction industry. This study aimed to identify the factors contributing to the non-use of safety harnesses during work at height and to evaluate the comfort, satisfaction, and usability of these harnesses among construction workers in Tehran using a custom-designed tool.
Material and Methods: A semi-structured interview was conducted with construction workers to identify the factors influencing the non-use of safety harnesses. The collected data were analyzed using MAXQDA 10 software. Based on the results, which revealed dissatisfaction with the current safety harnesses, the levels of comfort, satisfaction, and usability were assessed using the Safety Harness Usability and Comfort Assessment Tool (SHUCAT) questionnaire.
Results: The reasons for not using safety harnesses were categorized into four main groups: management factors, worker attitudes, comfort, and harness design. These were further subdivided into 27 subgroups. The average satisfaction and comfort scores for safety harnesses were 26.8 ± 6.25, indicating that workers generally felt uncomfortable and dissatisfied with their harnesses. The average usability score was 38.70 ± 5.60, reflecting poor usability of the harnesses.
Conclusion: Improving the safety harness design could enhance workers’ comfort and satisfaction, increasing their willingness to use the equipment. Incorporating feedback from users and experts into the design process can help address the identified shortcomings and result in better product development.
