Physical Exertion at Work and the Risk of Preterm Delivery and Small-for-Gestational- Age Birth

@article{Pompeii2005PhysicalEA,
  title={Physical Exertion at Work and the Risk of Preterm Delivery and Small-for-Gestational- Age Birth},
  author={Lisa Pompeii and David A Savitz and Kelly R. Evenson and Bonnie Rogers and Michael J. McMahon},
  journal={Obstetrics \& Gynecology},
  year={2005},
  volume={106},
  pages={1279-1288}
}
OBJECTIVE: To assess whether exposure to standing, lifting, night work, or long work hours during 3 periods of pregnancy are associated with an increased risk of preterm or small-for-gestational-age birth. METHODS: The Pregnancy, Infection and Nutrition study is a prospective cohort with a nested case–control component that was conducted through clinic and hospital settings in Central North Carolina. A total of 1,908 women pregnant with a singleton gestation were recruited during prenatal… 

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A sedentary lifestyle and paid work during the second trimester of pregnancy were found to be associated with a lower birth weight, while ‘bending and stooping’ and ‘working night shifts’ were associated withA higher birth weight.

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Data from the Iowa Health in Pregnancy Study was used to develop a method to correct for error in ultrasound measurement among suspected SGA infants, estimate the association of occupational stress on risk of PTD, and examine injury-related risk factors for PTD.

Preterm Delivery Risk in Relation to Maternal Occupational and Leisure Time Physical Activity Among Thai Women.

It is noted that heavy occupational physical exertion is associated with at least a doubling in PTD risk, which is less well delineated in this Thai population.

Physical Activity and Risk of Small-for-Gestational-Age Birth Among Predominantly Puerto Rican Women

Women with high total activity in mid-pregnancy had a decreased risk of SGA and high levels of sports/exercise were associated with an increased SGA risk without a significant dose–response association.

Exercise during pregnancy and the gestational age distribution: a cohort study.

Exercise performed during pregnancy shifted the GA distribution slightly upward resulting in reduced preterm births and slightly increased postterm births.
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