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Wyszukujesz frazę "work design" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Determination of pain in musculoskeletal system reported by office workers and the pain risk factors
Autorzy:
Celik, Sevim
Celik, Kadir
Dirimese, Elif
Taşdemir, Nurten
Arik, Tarik
Büyükkara, İbrahim
Powiązania:
https://bibliotekanauki.pl/articles/2161856.pdf
Data publikacji:
2017-10-18
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
pain
computer users
ergonomics
work-related musculoskeletal complaints
office worker
work design
Opis:
Objectives: This research was conducted as a cross-sectional descriptive study aimed at determining the existence of pain in the musculoskeletal system among office workers and the reasons for it. Material and Methods: The sample consisted of 528 office workers. Collection of data was achieved using a questionnaire prepared by the researchers in line with information from the literature. Results: The male and female office workers most frequently complained of pain in the lower back (55.1%), neck (52.5%) and back (53%). It was seen that out of the variables relating to the work environment, those which had the most significant effect on muscular-skeletal system pain were sitting at the desk for a long time without a break, working sitting on a chair that supported only the lumbar area and the arms, having the computer mouse at a distance from the keyboard, having the head inclined at 45° when working, working holding both forearms above the level of the desk, not taking exercise in daily life, and having a moderate or extremely stressful workplace (p < 0.05). Conclusions: The conclusion has been reached in this study that in order for office workers not to suffer musculoskeletal system pain, it is very important that the working environment should be ergonomically arranged and that various measures should be taken to ensure healthy life behavior. Int J Occup Med Environ Health 2018;31(1):91–111
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2018, 31, 1; 91-111
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A method for designing the longitudinal position of a porthole in a manned submersible based on the back muscle fatigue characteristics
Autorzy:
Zhu, Mengya
Chen, Dengkai
Fan, Yu
Guo, Jiayan
Powiązania:
https://bibliotekanauki.pl/articles/2094205.pdf
Data publikacji:
2021-12-13
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
surface electromyography
muscle fatigue
work efficiency
manned submersible
porthole position design
oceanauts
Opis:
ObjectivesThe proper porthole angle contributes to relieving the operation fatigue and improving the efficiency of oceanauts. In this study, the authors explored the effect of 3 different porthole longitudinal positions on the oceanauts’ back muscles using surface electromyography (sEMG) analysis, and the characteristics of the perceived body comfort was obtained.Material and MethodsOverall, 40 healthy participants were recruited to perform tasks in a simulated cabin environment. Electromyographic (EMG) signals were recorded from the trapezius medius, lower trapezius, and erector spinal muscles for porthole angles of –5°, –15°, and +15°, relative to the horizontal line of sight during a 21-minute experiment. The subject comfort scores were collected at 7, 14 and 21 min. The integrated electromyogram (iEMG) and the root mean square (RMS) of EMG signals, as well as the mean power frequency (MPF), and the mean frequency (MF) were calculated.ResultsThe subjective scores of the +15° porthole at each stage of work are higher than those of the –15° and –5° portholes. The results of iEMG, RMS, MF and MPF all indicated that the +15° porthole design was more conducive to lowering the rate of muscle fatigue, while the –5° and –15° portholes increased the muscle fatigue rate and led to greater fatigue. It was found that the lower trapezius was more prone to fatigue than the trapezius medius and erector spinal muscles. The height, weight and body mass index of the participants were found to negatively correlate with muscles at the +15° porthole, which is highly consistent with the actual situation.ConclusionsThe findings suggested that the +15° position was optimal for delaying the muscle fatigue of the participants and for improving the work efficiency of oceanauts.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2021, 34, 6; 701-721
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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