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Spine (Phila Pa 1976). 1985 May;10(4):317-24.

The abdominal mechanism.

Abstract

The abdominal mechanism, utilizing intraabdominal pressure, has been described and numericized. Simulations show that the lumbodorsal fascia under control of the abdominal muscles contributes to reduce the stress at the intervertebral joint. The musculature of the lumbar spine is of primary importance in the control of the efficiency of the spinal mechanism. The system of loading, which results in observable physiologic response, maintains the compressive load at virtually 90 degrees at the bisector of the disc for all weights and all angles of forward flexion.

PMID:
2931829
[PubMed - indexed for MEDLINE]
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