ASIS compression test: Test for lateralization of somatic dysfunction of the sacrum, innominate or pubic symphysis. A posterior compression normally produces a palpatory sense of 'give' or 'resilience' as the innominate glides slightly posterior at the sacroiliac joint on that side. Somatic dysfunction of the pelvis on the side of compression produces resistance to the test determining the side of lateralization which is analogous to the determining the dysfunctional side. This is interpreted as a positive ASIS compression test.2(777) Individuals who have suffered from any type of osseous or soft tissue traumatic injuries in the last three months do not make suitable subjects for an evaluation of somatic dysfunctions' effects on weight bearing. Neither do individuals who have suffered from any type of osseous or soft tissue injuries in the lower extremity joints (knee, ankle, hip) in the last twelve months. As stated earlier, leg length discrepancies may be a result of trauma. Individuals who have suffered traumatic injuries within the last three months may exhibit antalgic or compensatory postures which may displace weight bearing more through one lower extremity than the other.7 This will ensure that the treatment population will be as homogenous as possible and will improve reliability of the study.