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. Author manuscript; available in PMC: 2015 Jan 5.
Published in final edited form as: J Manipulative Physiol Ther. 2007 Sep;30(7):493–500. doi: 10.1016/j.jmpt.2007.07.009

Table 2.

Posterior-to-anterior stiffness measures by lumbar segment and sex

Mean (SD) of PA stiffness (N/mm)
Segment All patients (n = 162) Female (n = 64) Male (n = 98)
L1 10.25 (2.98) 9.26 (2.82) 10.97 (2.91)*
L2 10.45 (3.72) 9.29 (3.62) 11.30 (3.58)*
L3 10.82 (3.85) 9.38 (2.99) 11.83 (4.07)*
L4 10.81 (4.24) 9.86 (4.97) 11.48 (3.51)*
L5 11.12 (3.73) 9.55 (2.74) 12.14 (3.93)*
*

Significant differences between sex (P < .001).