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Standing and walking at work and birthweight

T B Henriksen1, M Hedegaard, N J Secher

  • 1Department of Obstetrics & Gynecology, Aarhus University Hospital, Denmark.

Acta Obstetricia Et Gynecologica Scandinavica
|August 1, 1995
PubMed
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Standing and prolonged walking at work may reduce birthweight. Moderate walking appears beneficial, while extensive standing and walking significantly decrease infant birthweight for gestational age.

Area of Science:

  • Occupational Health
  • Maternal-Fetal Medicine
  • Reproductive Epidemiology

Background:

  • Workplace physical activity, including standing and walking, is common among pregnant individuals.
  • The impact of occupational physical exertion on fetal development, specifically birthweight, requires further investigation.

Purpose of the Study:

  • To investigate the association between occupational standing and walking durations and birthweight for gestational age.

Main Methods:

  • A prospective cohort study involving 4249 working pregnant women was conducted.
  • Data on work exposures, medical history, and lifestyle factors were collected at 16 gestational weeks.
  • Birthweight for gestational age was analyzed in relation to hours spent standing and walking at work.

Related Experiment Videos

Main Results:

  • Standing over 5 hours per workday was associated with a 49g lower birthweight compared to standing less than or equal to 2 hours.
  • Walking between 2 and 5 hours per workday was linked to a 35g increase in birthweight.
  • More than 5 hours of combined standing and walking per workday resulted in a significant 119g reduction in birthweight.

Conclusions:

  • Occupational standing negatively impacts birthweight for gestational age.
  • Prolonged standing and walking during pregnancy may decrease birthweight.
  • Moderate occupational walking may have a beneficial effect on birthweight.