Cavalcante Sergio R, Cecatti Jose G, Pereira Rosa I, Baciuk Erica P, Bernardo Ana L, Silveira Carla
Department of Obstetrics and Gynecology, University of Campinas, Sao Paulo, Brazil.
Reprod Health. 2009 Jan 6;6:1. doi: 10.1186/1742-4755-6-1.
To evaluate the effectiveness and safety of water aerobics during pregnancy.
A randomized controlled trial carried out in 71 low-risk sedentary pregnant women, randomly allocated to water aerobics or no physical exercise. Maternal body composition and perinatal outcomes were evaluated. For statistical analysis Chi-square, Fisher's or Student's t-tests were applied. Risk ratios and their 95% CI were estimated for main outcomes. Body composition was evaluated across time using MANOVA or Friedman multiple analysis.
There were no significant differences between the groups regarding maternal weight gain, BMI or percentage of body fat during pregnancy. Incidence of preterm births (RR = 0.84; 95%CI:0.28-2.53), vaginal births (RR = 1.24; 95%CI:0.73-2.09), low birthweight (RR = 1.30; 95%CI:0.61-2.79) and adequate weight for gestational age (RR = 1.50; 95%CI:0.65-3.48) were also not significantly different between groups. There were no significant differences in systolic and diastolic blood pressure and heart rate between before and immediately after the water aerobics session.
Water aerobics for sedentary pregnant women proved to be safe and was not associated with any alteration in maternal body composition, type of delivery, preterm birth rate, neonatal well-being or weight.
评估孕期水中有氧运动的有效性和安全性。
对71名久坐不动的低风险孕妇进行随机对照试验，随机分配至水中有氧运动组或无体育锻炼组。评估母体身体成分和围产期结局。采用卡方检验、费舍尔检验或学生t检验进行统计分析。估计主要结局的风险比及其95%置信区间。使用多变量方差分析（MANOVA）或弗里德曼多重分析对不同时间的身体成分进行评估。
两组在孕期母体体重增加、体重指数（BMI）或体脂百分比方面无显著差异。早产发生率（RR = 0.84；95%置信区间：0.28 - 2.53）、阴道分娩率（RR = 1.24；95%置信区间：0.73 - 2.09）、低出生体重发生率（RR = 1.30；95%置信区间：0.61 - 2.79）以及适于胎龄体重发生率（RR = 1.50；95%置信区间：0.65 - 3.48）在两组间也无显著差异。水中有氧运动课程前后的收缩压、舒张压和心率无显著差异。
对于久坐不动的孕妇，水中有氧运动被证明是安全的，且与母体身体成分、分娩类型、早产率、新生儿健康状况或体重的任何改变均无关联。
