The impact of a sacroiliac joint belt on function and pain using the active straight leg raise in pregnancy-related pelvic girdle pain

Review written by Dr Sarah Haag info

Key Points

  1. Pregnancy-related pelvic girdle pain (PGP) is very common.
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Pelvic girdle pain (PGP) is prevalent during pregnancy, yet the etiology of PGP is not fully understood. PGP during pregnancy can lead to functional disability that persists beyond pregnancy (1). While the pelvis is inherently stable due to “form closure” and “force closure”, it is proposed that biomechanical changes due to pregnancy may explain the presence of pregnancy-related PGP.

The active straight leg raise (ASLR) test is a functional test to assess load transfer function in the pelvis. The purpose of this study was to determine if the use of a sacroiliac joint (SIJ) belt immediately improved ASLR score.

The etiology of pelvic girdle pain is not fully understood.
The assumption that pelvic instability is the cause of pelvic girdle pain has led to the regular use of core stability exercises.


Participants were recruited from an outpatient physical medicine and rehabilitation clinic. Participants were women in their second and third trimesters of pregnancy with symptoms of posterior PGP. Participants with positive P4 (Posterior Pelvic Pain Provocation) and FABER tests, and ASLR

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