Nabeshima Y, Souda S, Sasaki J, Mesaki N, Iwasaki H
Department of Obstetrics and Gynecology, University of Tsukuba, Ibaraki.
Nihon Sanka Fujinka Gakkai Zasshi. 1992 Mar;44(3):323-8.
The effect of maternal exercise on the fetal and maternal heart rate was studied in 10 normal pregnant women in their third trimester. They participated in 15 minute graded treadmill exercise. Fetal heart rate (FHR), uterine contraction, maternal blood pressure, electrocardiogram, and oxygen consumption were monitored, before, during, and after exercise. FHR could be monitored in 7 women. Maternal maximal heart rate ranged from 143 to 168 bpm which approximated 61% to 84% training intensity. FHR showed a significant rise in 4 women during exercise. Of four cases which showed more than 70% training intensity, 3 demonstrated fetal tachycardia over 160 bpm and one demonstrated fetal bradycardia under 120 bpm. The baseline fetal heart rate remained from 120 bpm to 160 bpm in cases under 70% training intensity. There was no pathological deceleration and the variability was preserved in all cases. It is suggested that maternal exercise intensity should be less than 70% of the patient's maximal capacity, which approximates maternal heart rate of about 150 bpm.
对10名孕晚期的正常孕妇研究了母体运动对胎儿和母体心率的影响。她们参与了15分钟的分级跑步机运动。在运动前、运动期间和运动后监测胎儿心率（FHR）、子宫收缩、母体血压、心电图和耗氧量。7名女性的胎儿心率可被监测到。母体最大心率范围为143至168次/分钟，约为训练强度的61%至84%。4名女性在运动期间胎儿心率显著上升。在4例训练强度超过70%的病例中，3例表现为胎儿心动过速超过160次/分钟，1例表现为胎儿心动过缓低于120次/分钟。训练强度低于70%的病例中，胎儿心率基线保持在120至160次/分钟。所有病例均未出现病理性减速且变异性得以保留。建议母体运动强度应低于患者最大能力的70%，这大约相当于母体心率约150次/分钟。
