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    Wyświetlanie 1-3 z 3
    Tytuł:
    MHAC—An Assessment Tool for Analysing Manual Material Handling Tasks
    Autorzy:
    Batish, A.
    Singh, T. P.
    Powiązania:
    https://bibliotekanauki.pl/articles/90084.pdf
    Data publikacji:
    2008
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    material handling
    manual carrying tasks
    working posture
    load/weight
    Opis:
    This paper describes an assessment tool for analysing material handling tasks and its application for material handling tasks prevalent in engine bearing industry. After a close observation of material handling tasks spread over many days, a list of tasks and parameters/variables affecting those tasks was made. Ergonomic conditions present in these tasks and their deficiencies were then identified and on the basis of the relationships between the tasks and their affinities, categories were developed. Using the data of those categories and various conditions and parameters, an assessment tool called MHAC (material handling assessment chart) was developed.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2008, 14, 2; 223-235
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Validation of Methods for Determination of Metabolic Rate in the Edholm Scale and ISO 8996
    Autorzy:
    Giedraityte, L.
    Holmer, I.
    Gavhed, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/91003.pdf
    Data publikacji:
    2001
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    energy expenditure
    heat production
    light and moderate work
    manual tasks
    heart rate
    wydatek energetyczny
    fizjologia układu moczowo-płciowego
    warunki pracy
    metabolizm
    Opis:
    The aim of this study was to validate the Edholm scale (Edholm, 1966) and the ISO 8996 standard (International Organization for Standardization [ISO], 1990) by comparing the metabolic rates estimated for both methods with the actual measured metabolic rate (MMeas) in 6 manual material handling tasks simulated under laboratory conditions. The metabolic rate was calculated from oxygen consumption V˙ O2 (19 participants) according to Standard No. ISO 8996 (ISO, 1990). Additionally, the participants estimated perceived exertion using the Borg scale. The metabolic rates derived from the Edholm scale (MEdh) overestimated 5 of 6 activities by 34–50% (< =.05). The metabolic rates derived from ISO 8996 (MISO) overestimated all activities by 7–38% (< =.05).
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2001, 7, 2; 135-148
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A Biomechanical Analysis of Manual Lifting Tasks Performed in Restricted Workspaces
    Autorzy:
    Elfeituri, F. E.
    Powiązania:
    https://bibliotekanauki.pl/articles/90531.pdf
    Data publikacji:
    2001
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    manual lifting tasks
    restricted workspaces
    compression and shear forces
    regression modeling
    analiza biomechaniczna
    podnoszenie ręczne
    Opis:
    This paper describes the results of an experimental study aimed at evaluating the biomechanical effects of working in a spatially restricted environment on manual lifting tasks. The main objective of the study is to estimate the biomechanical loading (in terms of peak compression and shear forces) on the lumbar spine for the selected combinations of limited headroom heights and twisting angles. A three-dimensional dynamic biomechanical model was utilized to assess peak compression and shear forces at the L5/S1 lumbosacral joint. The results indicated that by reducing the headroom height, the participants were forced to stand with their trunks fully flexed forward which, by increasing the mechanical disadvantage at the lumbosacral disc, increased the compression forces. Both compression and shear forces were affected by the increase in twisting angle. The greater the twisting angle, the higher the compression and shear forces. Regression models were developed and validated, which demonstrated high accuracy of predicting the psychophysical and biomechanical lifting capacities.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2001, 7, 3; 333-346
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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