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. Author manuscript; available in PMC: 2010 Jul 22.
Published in final edited form as: J Biomech. 2009 May 19;42(10):1384–1389. doi: 10.1016/j.jbiomech.2008.09.042

Table 1.

Patient Demographics.

Gender Biopsy Level
Muscle n-size Age Male Female L2–L3 L3–L4 L4–L5 L5–S1
Multifidus 23 57 ± 14a 11 12 1 2 5 15
Longissimus 7 69 ± 10 3 4 - 3 4 -
Iliocostalis 7 69 ± 10 3 4 - 3 4 -

Values are mean ± SD

a

= significant difference between multifidus and longissimus - iliocostalis