Pelvic girdle pain and relevance of ASLR testing: A ... - Cindy Verheul

The anterior oblique sling:
The anterior oblique sling consist with the oblique external and internal abdominal muscles
and also with the m. transversus abdominis, because of the connections between these
muscles via the linea alba. (A. L. Pool-Goudzwaard et al. 1998)
Because the transversus abdominis muscle is a deep trunk muscle it is responsible for the
lumbar segmental stability, which is also occurs by the multifidi. In a co-contraction they are
required for specific lumbar segmental stability, and pelvic stabiltity which is suggested by
Pool-Goudzwaard et al. (A. L. Pool-Goudzwaard et al. 1998)
2.1.5 The pelvic floor
The pelvic floor muscles (PFM) forms a part of the pelvis. They form a musculair diafragma
that constrict the movement of the lower end of the rectum and the urethra, it lifts the pelvic
organs and prevents the descent during a rise in the intra-abdominal pressure. It also
constricts the levator hiatus. (Annelies Pool-Goudzwaard et al. 2004; Stuge et al. 2012)
Together with the coccygeus muscles and the levator ani muscles, the pelvic floor resists to
the downward intra-abdominal pressure. During pregnancy, the PFM bear the weight of the
uterus and to allow the passage of the fetus.
These muscles near the SI joint seem to contribute to the force closure. (Annelies Pool-
Goudzwaard et al. 2004)
Pool-Goudzwaard et al. show also that an increase in tension on the PFM in combination
with m. pubococcygeus, m. coccygeus iliococcygeus causing a stiffening in the SI joints and
pelvic ring. This again demonstrates that the tension of the PFM contribute to the force
closure of the pelvis. While a lack of tension in the PFM results in a decreased load transfer
finally pain in the lumbopelvic area. (Stuge et al. 2012; Annelies Pool-Goudzwaard et al.
2004)
O’Sullivan et al. shows in his study of motor control strategies at subjects with SI joint pain
during the ASLR test that these “strategies” into the PFM have changed within the studied
audience. Here there is an increased activity and decreased endurance time of the PFM.
This is expressed as follows: subjects with sacroiliac pain show a descend a of the PFM
during conscious contraction. These people urinate frequently and have a tendency to
incontinence. (P. O’Sullivan et al. 2002)
Osteopathie Schule Deutschland
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