Journal of Spinal Disorders: February 1994 Original Articles: PDF Only Buy Abstract Summary: A paraspinal compartment pressure measurement was taken in 20 volunteers (a) to establish the normal compartment pressure in a series of body postures at rest and (b) to determine the difference in paraspinal compartment pressure during weight-lifting (40 pounds) exercise between straight back lifting and straight knee lifting. The measurement at rest showed a significant elevation of pressure in the sitting position compared with lying, standing, and bending positions. No significant difference in pressure was found between the two kinds of lifting exercises. Address correspondence and reprint requests to Dr. P. Songcharoen, Department of Orthopaedic Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok 7, Thailand. © Lippincott-Raven Publishers.