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    Wyświetlanie 1-4 z 4
    Tytuł:
    Isometric Pull and Push Strengths of Paraplegics in the Workspace: 1. Strength Measurement Profiles
    Autorzy:
    Das, B.
    Black, N. L.
    Powiązania:
    https://bibliotekanauki.pl/articles/90074.pdf
    Data publikacji:
    2000
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    isometric strength
    measurement
    pull and push strengths
    workspace
    reach envelopes
    paraplegics
    pomiary
    ciągnięcie
    pchanie
    siła mięśni
    praca mięśni
    Opis:
    The isometric strength profiles of male and female paraplegics were determined for pull and push strengths in the normal, maximum, and extreme working reach envelopes. A computerized isometric strength measurement system was designed and constructed for the purpose. The strongest pull location was at extreme reach vertically above the shoulder and the strength values for males and females were 473 and 318 newtons (N), respectively. The strongest push location was at maximum reach, at vertical ($) angle of 45° and at horizontal (6) angle of 45° for males and at 0° for women and the strength values were 235 and 172 N, respectively. The nature of the strength profiles was found to be similar for both the sexes. The pull and push strengths of the female were 77 and 68% that of the male, respectively.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2000, 6, 1; 47-65
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Isometric Pull and Push Strengths of Paraplegics in the Workspace: 2. Statistical Analysis of Spatial Factors
    Autorzy:
    Das, B.
    Black, N. L.
    Powiązania:
    https://bibliotekanauki.pl/articles/89871.pdf
    Data publikacji:
    2000
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    isometric strength
    pull and push strengths
    workspace reach levels
    horizontal and vertical angles
    paraplegics
    analiza statystyczna
    siła mięśni
    praca mięśni
    Opis:
    The effect of reach levels, horizontal angles, and vertical angles on isometric pull and push strengths of male and female was determined. Highly significant increases in men’s push strength were found between extreme to maximum reaches, and from extreme to normal reaches. However, for women’s push strength, a significant increase was found only between extreme to maximum reach. Significant or highly significant increases were found in men’s and women’s pull strength between the horizontal angle (0) sagittal through the active shoulder (90°) and other angles (0, 45, and 135°). However, for men’s push strength, highly significant increases were found between the horizontal angle 45° from the frontal plane, and other angles. For women’s push strength, significant or highly significant increases were found between the horizontal angles 0° and angles of 90 and 135°. For men’s and women’s pull strength, significant or highly significant increases were found between the vertical angle (), 90°, and other angles (-20, 0, and 45°). Similar increases were found for women’s push strength between the 45° angle and other angles. In the design of a workstation for paraplegics that requires pull and push forces, consideration must be given to the spatial factors.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2000, 6, 1; 67-80
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Isometric Pull-Push Strengths in Workspace. 1, Strength Profiles
    Autorzy:
    Das, B.
    Wang, Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/90551.pdf
    Data publikacji:
    2004
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    isometric strength
    push and pull strengths
    workspace reach levels
    vertical and horizontal angles
    workstation design
    pchanie
    siła mięśni
    praca mięśni
    pozycja przy pracy
    pozycja siedząca
    pozycja stojąca
    Opis:
    The isometric pull and push strength profiles of males and females were determined in seated and standing positions in the workspace. The strongest pull strength location was at extreme reach vertically above the shoulder for both males and females. The greatest pull strength of 400 Newtons (N) for males was recorded in the seated and standing positions. Females. pull strengths in the seated and standing positions were 222 and 244 N, respectively. The strongest push strength was always at the maximum reach at the overhead location. Males. maximum push strength was 227 N in the seated position and 251 N in the standing position. Females’ maximum push strength was 96 N in the seated position and 140 N in the standing position. On the average the strength in the standing position was 79% of the seated position. The push strength was 71% of the pull strength and females were 56% as strong as males.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2004, 10, 1; 43-58
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Isometric Pull-Push Strengths in Workspace. 2, Analysis of Spatial Factors
    Autorzy:
    Das, B.
    Wang, Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/90758.pdf
    Data publikacji:
    2004
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    isometric strength
    push and pull strengths
    workspace reach levels
    vertical and horizontal angles
    workstation design
    pchanie
    siła mięśni
    praca mięśni
    pozycja przy pracy
    pozycja siedząca
    pozycja stojąca
    projektowanie miejsc pracy
    Opis:
    The effect of reach levels, horizontal angles and vertical angles on isometric pull and push strengths of males and females in standing and seated positions was determined. The effect of reach levels on strength varied as a consequence of force direction, working position and gender. Reach level has a significant effect on women's pull strength in the seated position and on push strength in the standing position. The strength value was significantly greater in the extreme reach than in maximum or normal reach. Vertical angle ö had a significant effect on strength consistently in all cases. Strength values increased significantly with the increase of ö angles from 0º to 45º to 90º. The horizontal angle è had a significant influence only on the pull strength of standing and seated men and standing women (not seated woman). The maximum strength was significantly greater at è = 90º.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2004, 10, 1; 59-64
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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