Volume 7, Issue 2 (Iranian Journal of Ergonomics 2019)                   Iran J Ergon 2019, 7(2): 11-18 | Back to browse issues page

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Arabian A, Makkiabadi B, Masjoodi S, Azam K, Ghafari E, Torabi Nassaj E et al . Ergonomic Assessment of the Sit-Stand Seat on Urban Bus Transport. Iran J Ergon. 2019; 7 (2) :11-18
URL: http://journal.iehfs.ir/article-1-639-en.html
Professor, Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran , zakerian@sina.tums.ac.ir
Abstract:   (1696 Views)

Background and Objectives: In recent years, due to the rapid growth of metropolitan cities and the shortage of urban public transport means, including urban bus transportation, many people are forced to travel in a standing position when using these vehicles. This situation may cause pain and discomfort and non-collision injuries for passengers. The purpose of this study was ergonomic assessment of the sit-standing seat in passengers standing on urban buses.
Methods: To do this study, 8 young people with a mean age of 25.25±2.12 years were enrolled. For evaluation and assessing the effect of sit-standing seat two methods of surface Electromyography (sEMG) and Borg scale scores were applied in Fall 2018. The data was analyzed using SPSS 24.
Results: In all body parts, except for the hip, the mean scoring of Borg’s scale for perceived discomfort in sit-standing position was less than standing position. Also, the amount of contractile activity of the leg muscles in sit-standing position was significantly lower than the standing position (P<0.05).
Conclusion: Considering the results obtained from the Borg scale scores and the contraction activity of the leg muscles as a result of the use of the mentioned seat, which led to a reduction in the level of discomfort and the leg muscles contraction, it is recommended to apply the sit-stand seat instead of being in a standing position.

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Type of Study: Research | Subject: Special
Received: 2019/06/30 | Accepted: 2019/08/27 | ePublished: 2019/11/11

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