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- 저자 : Indri Hapsari (검색결과 2 건)
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TYPE A BEHAVIOR PATTERN, CELLULAR MANUFACTURING SYSTEM, AND MENTAL WORKLOADS
Masahiro Hashimoto,Indri Hapsari,Masaharu Kumashiro 대한인간공학회 2007 대한인간공학회 학술대회논문집 Vol.- No.-
In the last decade, the traditional conveyor belt system has partly switched to a cellular manufacturing system in Japanese manufacturing industry. The new “cell” system has brought with both economic and environmental successes to leading companies. Although the new system stimulates the motivational aspects of workers by increasing job complexity, complex jobs are expected to place higher mental demands on workers with Type A personalities, who respond with adverse cardiovascular reactions to stressful situation. This study was designed to test an empirical hypothesis: the new “cell” system characterized by job complexity will result in greater perceived workload and heightened sympathetic arousal among participants rated high on the type A behavior pattern. Fourteen subjects (seven classified as Type A and seven classified as Type B) performed 90-minute repetitions of a simple assembly task in two different manufacturing systems; a conventional “conveyor” method and a new “cell” method. The results from the NASA Task Load Index and spectral analysis of heart rate variability presented evidence for the mediating role of the type A behavior pattern in the relationship between manufacturing system design and mental workload placed on participants. The findings imply that the type A behavior pattern of individuals should be assessed properly in the workplace and considered in evaluations of job design.
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The Risk Factors for Musculoskeletal Symptoms During Work From Home Due to the Covid-19 Pandemic
Nasri Sjahrul Meizar,Susilowati Indri Hapsari,Hasiholan Bonardo Prayogo,Sitanggang Akbar Nugroho,Gede Jyotidiwy Ida Ayu,Satria Nurrachmat,Theofany Simanjuntak Magda Sabrina 한국산업안전보건공단 산업안전보건연구원 2023 Safety and health at work Vol.14 No.1
Background: Online teaching and learning extend the duration of using gadgets such as mobile phones and tablets. A prolonged usage of these gadgets in a static position can lead to musculoskeletal disorders (MSD). Therefore, this study aims to identify the risk factors related to musculoskeletal symptoms while using gadgets during work from home due to the COVID-19 pandemic. Method: A cross-sectional survey with online-based questionnaires was collected from the University of Indonesia, consisting of lecturers, students, and managerial staff. The minimum number of respondents was 1,080 and was defined by stratified random sampling. Furthermore, the dependent variable was musculoskeletal symptoms, while the independent were age, gender, job position, duration, activity when using gadgets, and how to hold them. Result: Most of the respondents had mobile phones but only 16% had tablets. Furthermore, about 56.7% have used a mobile phone for more than 10 years, while about 89.7% have used a tablet for less than 10 years. A multivariate analysis found factors that were significantly associated with MSD symptoms while using a mobile phone, such as age, gender, web browsing activity, work, or college activities. These activities include doing assignments and holding the phone with two hands with two thumbs actively operating. The factors that were significantly associated with MSD symptoms when using tablets were gender, academic position, social media activity, and placing the tablet on a table with two actively working index fingers. Conclusion: Therefore, from the results of this study it is necessary to have WFH and e-learning policies to reduce MSD symptoms and enhance productivity at work.
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