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. Author manuscript; available in PMC: 2016 Jun 1.
Published in final edited form as: Spine J. 2013 Oct 4;15(6):1196–1202. doi: 10.1016/j.spinee.2013.08.056

Table 4.

Multifidus lift test validity

MLT Procedure Change in LM thickness at
L4/L5 		Change in LM thickness at
L5/S1
rbis p rbis p
Examiner 1
 L4/L5 no weight (N = 30) 0.59 0.010 0.29 0.201
 L4/L5 with weight (N = 28) 0.71 0.003 0.44 0.063
 L5/S1 no weight (N = 30) 0.73 0.002 0.47 0.040
 L5/S1 with weight (N = 28) 0.62 0.008 0.39 0.097
Examiner 2
 L4/L5 no weight (N = 30) 0.71 0.002 0.45 0.053
 L4/L5 with weight (N = 28) 0.69 0.005 0.24 0.341
 L5/S1 no weight (N = 30) 0.69 0.003 0.44 0.056
 L5/S1 with weight (N = 28) 0.63 0.009 0.17 0.472

MLT, multifidus lift test; LM, lumbar multifidus; rbis, biserial correlation coefficient