title: [A Survey and Analysis of Exercise Among Pregnant Women Conducted Using the Theory of Reasoned Action].
abstract: BACKGROUND
  Prior research has highlighted the significant relationship between gestational weight gain and pregnancy outcomes. Exercise is one of the main factors that affects body weight. Therefore, exercising appropriately during pregnancy is an important activity for promoting healthy pregnancy outcomes.
  
  
  OBJECTIVE
  To explore the status and features of maternal exercise during pregnancy and to analyze the related influence factors using the "theory of reasoned action" in order to provide evidence-based guidance on exercise during pregnancy.
  
  
  METHODS
  Convenience sampling was used to recruit pregnant women from four hospitals of different administrative levels in Chengdu, China. A self-developed questionnaire was used to collect data. Data were input using Epidata and analyzed using SPSS 21.0.
  
  
  RESULTS
  Data provided by 587 pregnant women in their first trimester, 522 in their second trimester, and 522 in their third trimester were used in analysis. Significant differences were found between the three groups in terms of housework loading and lifting. Further, participants in the third trimester were significantly more likely to exercise less than 3 times per week and less than 30 minutes per session than their first and second trimester peers (p < .001). Structural equation modeling identified that: behavior intention had a significant effect on level of physical activity; attitudes and norms affected behavior by affecting intention; monthly income and educational background affected behavior by influencing attitude; and educational background affected behavior by influencing perceived norms.
  
  
  CONCLUSIONS
  The findings of the present study support that personal situation, the family, and social norms impact the behavior of women significantly more during pregnancy than before pregnancy.
authors: MSN, RN, Department of Gynecology and Obstetrics, West China Second University Hospital, Taiwan, ROC.
authors: Pan
authors: P
authors: Huang
authors: PhD, RN, Co-Chief Nurse, Department of Pediatrics, West China Second University Hospital, Taiwan, ROC.
authors: Wen-Tao
authors: WT
authors: Peng
authors: PhD, RN, Chief Nurse, Department of Gynecology and Obstetric, West China Second University Hospital, Taiwan, ROC. hpwthx@163.com.
authors: Bi-Ru
authors: BR
authors: Luo
mesh_terms: D000328:Adult; D001835:Body Weight; D015444:Exercise / Q000502:physiology*; D005260:Female; D015438:Health Behavior; D006801:Humans; D011247:Pregnancy / Q000502:physiology*; D011795:Surveys and Questionnaires
keywords: exercise; pregnant women; theory of reasoned action