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Psychological and physiological stress responses of 36 male and 29 female assembly workers were examined during and after work at a car engine factory. Two different ways of organizing assembly work were compared, (1) a more traditional assembly line with fixed work stations organized as a chain and involving short repetitive work cycles and, (2) a new and more flexible work organization with small autonomous groups having greater opportunities to influence the pace and content of their work. Each worker was examined during and after a normal day at work on 2 consecutive days and, in order to obtain endocrine baseline data, during a corresponding work-free period at home. As expected, both female and male workers in the flexible organization reported significantly more variation, independence and abilities to learn new skills at work. Workers in both forms of work organization showed a significant increase in urinary epinephrine and norepinephrine during work compared to the work-free day at home. Males had significantly higher epinephrine and systolic blood pressure levels than females. Successive self-reports of tiredness increased significantly more at the assembly line compared to the flexible work organization. In keeping with this, systolic blood pressure, heart rate and epinephrine increased significantly during the work shift at the assembly line but not during work in the flexible organization. Catecholamine levels revealed that the subjects were able to unwind more rapidly after work in the flexible organization. This pattern was particularly pronounced for the female workers. In summary, the various stress indicators support the notion that the flexible work organization induces less stress than the assembly line and that the female workers were able to benefit most from this new form of work organization. Copyright © 1999 John Wiley & Sons, Ltd.
Melin et al. (Fri,) studied this question.