Fetal Heart Rate Response to the Maternal Exercise Depends on Gestational Ages

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概要

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• Objectives: Maternal exercise can affect fetal circulation and fetal heart rate(FHR). We evaluated the effects of maternal exercise on FHR at different gestational ages in uncomplicated pregnant women. Methods: 900 healthy pregnant women were enrolled. All subjects performed bicycle ergometer exercise for 10 minutes. Maternal heart rate(MHR), blood pressure, and oxygen consumption were measured at rest, during the exercise, and the end of exercise. FHR was monitored continuously during the exercise. Results: MHR, systolic and diastolic blood pressure, and oxygen consumption significantly increased by maternal exercise, but these parameters returned to normal levels 3 minutes after exercise. MHR did not change, but FHR decreased according to gestational age (r=0.33, p<0.001). MHR was significantly increased by maternal exercise throughout the pregnant period. Exercise increased FHR after 31 weeks of gestation (146.0±8.0 to 150.4±9.2 bpm, p<0.05), while it did not change significantly before 30 weeks of gestation. Just after exercise, MHR was correlated positively (r=0.33, p<0.05) with FHR from 31 to 39 weeks of gestation. The prevalence of the subjects whose FHR increase induced by exercise showed greater than 10 bpm was about 5% before 30 weeks, but it increased to 20% after 31 weeks of gestation. Discussion: Results indicate that FHR may be increased by maternal exercise only after 31 weeks of gestation. Strenuous or long-term maternal exercise should be limited at late gestation.

• 愛知医科大学の論文
• 2007-12-15

著者

• Wakatsuki Akihiko

  Department Of Gynecology Kochi Medical School

• SEKIYA Rinko

  Department of Obstetrics and Gynecology, Aichi Medical University, School of Medicine

• Sekiya Rinko

  Department Of Obstetrics And Gynecology Aichi Medical University School Of Medicine

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