Postural equilibrium during pregnancy:: Decreased stability with an increased reliance on visual cues
Postural equilibrium during pregnancy:: Decreased stability with an increased reliance on visual cues
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DOI：
10.1016/j.ajog.2006.06.015
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发表时间：
2006-10-01
影响因子：
9.8
通讯作者：
Rose, Jessica
中科院分区：
文献类型：
--
作者：
Butler, Erin E.;Colon, Iris;Rose, Jessica
目的：本研究的目的是确定怀孕期间姿势平衡是否发生变化，并检查怀孕期间跌倒的发生率是否增加。研究设计：收集了 12 名孕妇在妊娠 11 至 14 周、19 至 22 周、36 至 39 周以及产后 6 至 8 周时的静态姿势平衡测量数据，以及 12 名年龄、身高、体重和体重指数相匹配的未怀孕对照受试者的静态姿势平衡测量数据。受试者被要求睁开和闭上眼睛安静地站在稳定的力平台上 30 秒。路径长度和平均径向位移是根据每种条件 3 次试验的平均值计算的。每次治疗时都会询问女性在过去 3 个月内是否曾跌倒过。结果：在妊娠前三个月，姿势稳定性保持相对稳定；然而，与对照组相比，妊娠中期和晚期以及产后的路径长度和睁眼和闭眼时的平均径向位移值显着增加，这表明姿势平衡减弱。随着怀孕的进展，睁眼和闭眼的路径长度值之间的差异增加。尽管有 25% 的孕妇跌倒，但对照组受试者在过去一年中没有跌倒过。结论：这些数据表明，姿势稳定性在怀孕期间下降，并在产后 6 至 8 周内持续下降。研究还表明，怀孕期间人们越来越依赖视觉线索来保持平衡。 (c) 2006 Mosby, Inc. 保留所有权利。
Objective: The purpose of this study was to determine whether there are changes in postural equilibrium during pregnancy and to examine whether the incidence of falls increases during pregnancy.Study design: Static postural balance measures were collected from 12 pregnant women at I I to 14, 19 to 22, and 36 to 39 weeks gestation and at 6 to 8 weeks after delivery and from 12 nulligravid control subjects who were matched for age, height, weight, and body mass index. Subjects were asked to stand quietly on a stable force platform for 30 seconds with eyes open and closed. Path length and average radial displacement were computed on the basis of the average of 3 trials for each condition. The women were asked at each session if they had sustained a fall in the previous 3 months.Results: Postural stability remained relatively stable during the first trimester; however, second and third trimester and postpartum values for path length and average radial displacement with eyes open and closed were increased significantly compared with the control subjects, which indicates diminished postural balance. The difference between the eyes open and closed values of path length increased as pregnancy progressed. Although 25% of pregnant women sustained falls, none of the control subjects had fallen in the past year.Conclusion: These data suggest that postural stability declines during pregnancy and remains diminished at 6 to 8 weeks after delivery. The study also indicates that there is an increased reliance on visual cues to maintain balance during pregnancy. (c) 2006 Mosby, Inc. All rights reserved.