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Physical Activity Pattern and Personal-Social Factors of Mothers During Pregnancy And Infant Birth Weight Based On

Zohreh Mahmoodi1, Masoud Karimlou1, Homeira Sajjadi1

  • 1Social Determinant of Health Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, IR Iran.

Iranian Red Crescent Medical Journal
|January 8, 2014
PubMed

Insights

Increased time spent on sports and household activities during pregnancy is linked to a higher risk of low birth weight infants. Leisure activities, however, may reduce this risk.

Area of Science:

  • Public Health
  • Epidemiology
  • Maternal Health

Background:

  • Low birth weight (LBW) is a significant global public health concern.
  • Understanding the etiology of LBW is crucial for effective prevention strategies.
  • The impact of maternal physical activity on LBW requires further investigation.

Purpose of the Study:

  • To examine the association between maternal physical activity during pregnancy and the incidence of low birth weight.
  • To explore the relationship between different types of physical activities (athletic, home, leisure) and LBW.
  • To identify potential lifestyle factors contributing to LBW.

Main Methods:

  • A case-control study was conducted with 250 cases (LBW infants) and 500 controls (normal birth weight infants).
  • Data on maternal lifestyle during pregnancy were collected using a researcher-made questionnaire, employing a social determinants of health approach.
  • Physical activity was categorized into athletic, home, and leisure activities, with intensity measured using the MET scale. Data were analyzed using logistic regression.

Main Results:

  • Increased time spent on athletic activities was associated with a higher likelihood of LBW (Odds Ratio [OR] = 2.20).
  • Increased time spent on home activities also showed a positive association with LBW (OR = 1.44, P = 0.003).
  • Conversely, each hour increase in leisure activities was linked to a decreased probability of LBW (OR = 0.32, P = 0.008).

Conclusions:

  • Maternal engagement in sports and household activities during pregnancy is significantly associated with an increased risk of delivering low birth weight infants.
  • Leisure activities may have a protective effect against low birth weight.
  • These findings highlight the complex relationship between physical activity patterns and infant birth weight.
Abstract

Keywords:
Effective Social Determinants of HealthInfant, Low Birth WeightMotor ActivityPregnancy

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