Job enlargement and mechanical exposure variability in ciclic assembly work

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      <subfield code="a">Cyclic assembly work is known to imply a high risk for muscolosketeal disorders. To have operators rotate between work task is believed to be one way of decreasing this risk, since it is expected to increase variation in mechanical and phycological exposures. This assumption was investigated by assessing mechanical exposure variability in three asembly tasks in an electronic assembly plant, each on a separate workstation, as well in a "job enlargement" scenario combining all three station. Five experienced operators workerd for 1 h on each station. Data on upper trapezious and forearm extensor muscle activity were obtained by means of electromyogrphy, and working postures of the head and upper arms were assessed by inclinometry</subfield>
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      <subfield code="t">Ergonomics</subfield>
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      <subfield code="g">Vol. 47, nº 1, January 2004 ; p.19-40</subfield>
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