Impact of the Overall Workload on Pregnancy: Summary

  • The overall workload is evaluated by means of the cumulative set of occupational conditions, the level of physical activity and the level of energy expenditure.
  • Exposure to an increased number of occupational conditions is linked to increased preterm deliveries and, to a lesser extent, to increased small-for-gestational-age births.
  • Increases in the incidence of low-birthweight and high blood pressure during pregnancy are suspected in the presence of two or three occupational conditions. 
  • Excessive preterm deliveries and low-birthweights are suspected during exposure to high and moderate levels of physical activity, respectively.
  • Different effects of energy expenditure are suspected, i.e., lower birthweight, an increase in spontaneous abortions and a higher incidence of high blood pressure during pregnancy in the presence of a high level of activity, and increased small-for-gestational-age births in the case of moderate and high levels of activity.

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