Effects of sitting position on uterine activity during labor Obstetrics & Gynecology 69:67-73
SZ Chen, K Aisaka, H Mori, and T Kigawa
To determine which components of uterine activity are affected by different positions of labor, 116 intrauterine pressure records in the sitting and supine positions were analyzed in order to measure resting, contraction, and bearing down pressures. The resting pressure in the sitting position showed consistent elevation compared to the supine position, while the contraction pressure did not differ strikingly in the two positions. The bearing down pressure in the sitting position for nulliparas during the second stage and for multiparas at the time of the 8- to 10-cm dilation was significantly higher than that in the supine position. Also, the sitting position led to a significantly shorter duration of the second stage in nulliparas and the 5- to 10-cm dilation period in multiparas. These findings suggest that the maternal position does not affect uterine contractility, that the increased resting pressure in the sitting position is of some importance in supplementing the downward delivery force, and that the increased bearing down pressure in the sitting position could help to significantly shorten the duration of labor.
La position assise plutôt que couchée pourrait aider à réduire significativement la durée du travail.
The sitting position rather than the supine position could help to significantly shorten the duration of labor.
A posição sentada em vez da posição supina poderia ajudar a encurtar significativamente a duração do trabalho.
➡ position during labor ; dilation
Sandrine Péneau — 31 Mar 2005
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