Rodríguez-Escudero F, Belausteguigoitia Abando F J, Gutiérrez Martínez S
An Esp Pediatr. 1980 Jun;13(6):465-76.
The possible role of women's work and rest in pregnancy risk has been assessed in a population in which prematurity, intrauterine growth retardation, perinatal mortality and major malformations are considered. From author's data it can be assumed that women work during pregnancy is a risk factor only uterine growth retardation, mainly if the activity is done in a standing position. In cases of prematurity, there is some evidence that maternal work during the second trimester is of risk if it requires deambulation. Author's have also analyzed the influence of transportation and bed rest in pregnancy risk. About transportation and even though there are many interrogants, there is evidence in favour that long daily transportation of the pregnant women could be a risk factor, even more if it is done by bus. Concerning sleeping rest, data suggests an optimal of seven to ten hours daily, although possible risk out of this limit needs further evaluations.
在一个考虑了早产、宫内生长迟缓、围产期死亡率和重大畸形的人群中，评估了女性作息在妊娠风险中的可能作用。根据作者的数据，可以假设女性孕期工作只是宫内生长迟缓的一个风险因素，主要是如果活动是站立进行的话。在早产的情况下，有一些证据表明，如果孕中期的母体工作需要行走，那么这种工作就存在风险。作者还分析了交通出行和孕期卧床休息对妊娠风险的影响。关于交通出行，尽管有很多疑问，但有证据支持这样的观点，即孕妇每天长时间的交通出行可能是一个风险因素，乘坐公交车出行时更是如此。关于睡眠休息，数据表明每天7至10小时是最佳时长，尽管超出这个时长范围可能存在的风险还需要进一步评估。
