The effects of pelvic belt use on pelvic alignment during and after pregnancy: a prospective longitudinal cohort study
The effects of pelvic belt use on pelvic alignment during and after pregnancy: a prospective longitudinal cohort study
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DOI：
10.1186/s12884-019-2457-6
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发表时间：
2019-08-22
影响因子：
3.1
通讯作者：
Aoyama, Tomoki
中科院分区：
文献类型：
--
作者：
Morino, Saori;Ishihara, Mika;Aoyama, Tomoki
背景：妊娠期和分娩后骨盆排列改变。骨盆带施加外力，压迫和稳定关节，因此，可能影响骨盆对齐。然而，关于这种潜在影响的信息有限。因此，本研究的目的是探讨妊娠期间和妊娠后使用骨盆带对骨盆对准的影响。方法采用201例妊娠晚期及产后1个月孕妇的资料。骨盆对准测量，包括前后骨盆宽度，骨盆不对称，以及怀孕期间和怀孕后骨盆带的使用。参与者根据骨盆带的使用分为四组：分娩前后（BAC），仅分娩前（BC），仅分娩后（AC）和不使用（NU）。然后，进行了初步的单因素方差分析，比较各组之间从妊娠晚期到分娩后骨盆直线的变化量。初步分析后，考虑年龄、BMI、生育次数、阴道分娩、妊娠后期盆腔不对称等影响盆腔排列的其他因素，进行多因素回归分析，确定组间差异有统计学意义。接下来，根据每周盆腔带使用时间和组间盆腔排列变化来比较亚组分层的截止点。结果初始的单因素方差分析结果显示，BAC在妊娠至产后骨盆不对称的减少程度大于AC。并且，多元回归分析显示，初始分析中显示的骨盆带的影响即使在调整其他因素后也具有统计学意义。此外，与NU组和AC组相比，当组截止时间为每周7小时时，BAC组盆腔不对称有所减少，而NU组和AC组盆腔不对称有所增加或保持不变。结论孕期和产后持续和延长使用骨盆带可能与围生期骨盆不对称的改变有关。因此，需要指导正确舒适的使用方法，并建议在怀孕期间继续使用盆腔带，以防止盆腔错位引起的一些不适。
Background Pelvic alignment changes during pregnancy and post-childbirth. Pelvic belts exert external forces that compress and stabilize the joints, and therefore, could influence pelvic alignment. However, limited information is available regarding this potential effect. Therefore, the purpose of this study is to investigate the influence of pelvic belt use on pelvic alignment during and after pregnancy. Methods Data of 201 pregnant women in late pregnancy and 1 month after childbirth were used. Pelvic alignment measurements, including anterior and posterior pelvic width, pelvic asymmetry, and pelvic belt use during and after pregnancy were investigated. Participants were divided into four groups according to pelvic belt use: before and after childbirth (BAC), before childbirth only (BC), after childbirth only (AC), and non-use (NU). Then, an initial one-way ANOVA was conducted to compare the amount of change in pelvic alignment from late pregnancy to post-childbirth between the groups. After the initial analysis, a multivariate regression analysis was performed to determine the statistically significant differences between the groups to consider other factors that influenced pelvic alignment such as age, BMI, number of previous childbirths, vaginal delivery and pelvic asymmetry in late pregnancy. Next, a cutoff point for subgroup stratification based on the weekly duration of pelvic belt use and inter-group changes in pelvic alignment were compared. Results As the result of the initial one-way ANOVA, the decrease in pelvic asymmetry from during pregnancy to postpartum for BAC was greater than that for AC. Moreover, multiple regression analysis showed that the effect of pelvic belt that was revealed in the initial analysis was statistical significance even after adjustment for other factors. Moreover, pelvic asymmetry in the BAC group decreased, compared to being increased or unchanged in the NU and AC groups when the group cutoff time was 7 h per week. Conclusions Continuous and extended use of pelvic belts during and after pregnancy might be related to modifications of pelvic asymmetry in the perinatal period. Therefore, the instruction of correct and comfortable usage and the recommendation of continuous use of pelvic belt especially during pregnancy are required for prevention of some discomforts related to pelvic malalignment.