- Tytuł:
- Biomechanical Loads and Subjective Stress Exposure to Lumber Graders in Sawmill Industry
- Autorzy:
-
Jones, T.
Kumar, S. - Powiązania:
- https://bibliotekanauki.pl/articles/90791.pdf
- Data publikacji:
- 2011
- Wydawca:
- Centralny Instytut Ochrony Pracy
- Tematy:
-
job analysis
lumber graders
wood product manufacturing
repetitive strain
upper extremity
physical and psychophysical stress - Opis:
- The aim of this study was to determine biomechanical loads and subjective stresses on lumber graders and associated morbidity in a high risk and repetitive sawmill occupation. The exposures of all 29 male sawmill worker volunteers were recorded. Motion and posture were studied with electrogoniometers, muscle loads were recorded with surface electromyography, and psychophysical stresses were assessed with subjective responses. Fifty-nine percent of the participants reported greater than moderate discomfort in their taskdominant upper extremity. Job performance required an average range of motion of 44º, 21º, and 52º in flexion/extension, radial/ulnar deviations, and pronation/supination respectively. It also required an average of 9% maximum voluntary contraction force and was repeated an average of 34 times/min. This repetitive exertion over an 8-h shift was deemed to be a significant risk factor associated with prevalent upper extremity morbidity.
- Źródło:
-
International Journal of Occupational Safety and Ergonomics; 2011, 17, 1; 87-97
1080-3548 - Pojawia się w:
- International Journal of Occupational Safety and Ergonomics
- Dostawca treści:
- Biblioteka Nauki
Artykuł