The action of squatting in the early postnatal period marginally increases pelvic dimensions.
X-ray pelvimetry was performed on 43 women in the squatting and erect positions within 1 week of delivery. The act of squatting increased the transverse and antero-posterior pelvic dimensions by 1%. The theoretical mechanisms by which posture may affect dimensions are discussed.
Lilford
R J
RJ
St James's University Hospital, Leeds.
Glanville
J N
JN
Gupta
J K
JK
Shrestha
R
R
Johnson
N
N
D005260:Female; D006801:Humans; D010387:Pelvimetry; D010388:Pelvis / Q000033:anatomy & histology*; D049590:Postpartum Period; D011187:Posture; D011247:Pregnancy