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本文研究孕妇在地面和水中进行同样强度运动对母、胎的影响。象游泳等水中运动对孕妇可能有多种潜在的益处,如水支撑了母体重量,静水压力引出组织间隙液的再分配,水比空气容易改善热的逸散等。本试验选择孕25～26周之间的患者,通过病史和体检排除有产科和其它禁忌症者。试验在午饭后2小时开始,分三阶段。首先经过分次增量运动试验确定患者最大氧容量(VO_(2max))。患者坐在自行车测力计上适应10分钟并接心电图导线后踏车逐渐增加负荷,达到70%预定最大心率时测60秒的氧容量。第二阶段将患者随机分配在地面或水中于70%VO_(2max)踏车20分钟。最后令患者交替在地面及水
This article studies pregnant women in the ground and water exercise the same intensity on the mother and fetus. Water sports such as swimming may have several potential benefits to pregnant women, such as water supporting the mother’s weight, hydrostatic pressure leading to redistribution of interstitial fluid, and water being easier to dissipate than hot air. This test choose pregnant between 25 to 26 weeks of patients, through medical history and physical examination exclude obstetric and other contraindications. Two hours after the test began in three phases. The maximum oxygen capacity (VO_ (2max)) of patients was first determined by incremental incremental exercise test. The patient sat on a bicycle dynamometer for 10 minutes and then connected to the ECG lead treadmill load gradually increased to 70% of the predetermined maximum heart rate measured 60 seconds when the oxygen capacity. In the second phase, patients were randomized to tread on ground or water for 20 minutes on 70% VO 2max treadmill. Finally, patients alternate on the ground and water