Estudio preliminar de la acci贸n del m煤sculo obturador interno sobre el di谩metro biespinoso p茅lvico

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• 作者：Marcel Caufriezp>ap>p> ; p>p>bp>p> ; p>p>cp> ; Juan Carlos Ferná ; ndez Domí ; nguezp>dp>p> ; p>p>jcarlos.fernandez@uib.esp> ; Marc Lemortp>ep> ; Thyl Snoeckp>bp>
• 关键词：Paridad ; Parto ; Pelvimetrí ; a ; Resonancia magn&eacute ; tica ; Suelo p&eacute ; lvico
• 刊名：Progresos de Obstetricia y Ginecolog铆a
• 出版年：2012
• 期刊代码：pca294_03045013
• 类别：med
• 出版时间：June-July, 2012
• 卷：55
• 期：6
• 页码：264-268
• 文件大小：422 K

摘要

Objective

<p>To evaluate the effect of isometric active contraction of the internal obturator muscles on the bispinous diameter of the minor pelvis in nulliparous women.

Subjects and methods

<p>We performed a quasi-experimental study with pre-test-post-test: resting muscle position versus active contraction. We calculated the arithmetic mean of three consecutive measurements of the bispinous diameter of the minor pelvis obtained by magnetic resonance imaging performed in six nulliparous women.

Results

<p>No statistically significant differences (P=.08) in the bispinous diameter were found between rest and during isometric contraction of the internal obturator muscles: in absolute values, the mean difference between the two measurements was - 5.4 pixels (95%CI: -11.8 to 0.9).

Conclusions

<p>The bispinous diameter of the minor pelvis cannot be increased in young nulliparous women by means of isometric contraction of the internal obturator muscles starting from a neutral position of both hips.