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Table 2 Outcome Measures for Male and Female Subjects with and without Low Back Pain

From: Reduced thoracolumbar fascia shear strain in human chronic low back pain

  Males Females  
Outcomes No-LBP
(n = 24)
LBP
(n = 38)
No-LBP
(n = 26)
LBP
(n = 33)
Group
p-value
Sex
p-value
Group by
Sex
p-value
Percent Shear Strain 64.70 ± 5.17 50.88 ± 3.77 75.36 ± 5.02 62.73 ± 5.18 .007 .02 .90
Perimuscular
Thickness*
0.37 ± 0.04a 0.49 ± 0.03b 0.41 ± 0.03a 0.41 ± 0.03a .07 .50 .09
Perimuscular
Echogenicity*
0.13 ± 0.01 0.16 ± 0.01 0.14 ± 0.01 0.15 ± .01 .007 .92 .30
Flexion Range
of Motion
53.90 ± 1.88 46.38 ± 2.27 53.58 ± 1.84 52.13 ± 1.78 .03 .19 .15
Extension Range
of Motion
16.90 ± 1.89a 9.74 ± 0.86b 16.89 ± 1.55a 16.28 ± 1.92a .02 .04 .04
Lateral Flexion 19.51 ± 0.68a 17.07 ± 0.61b 18.02 ± 0.67a 18.23 ± 0.61a .09 .80 .04
Repeated Trunk
Flexion*
7.97 ± 0.52 9.88 ± 0.41 8.27 ± 0.45 9.64 ± 0.41 <.001 .94 .56
Repeated Sit to
Stand
10.71 ± 0.43a 13.42 ± 0.62b 11.90 ± 0.54a 12.67 ± 0.41a .002 .69 .08
50 Foot Walk
Regular Speed*
10.64 ± 0.35 11.58 ± 0.27 11.19 ± 0.30 11.97 ± 0.28 .005 .12 .80
50 Foot Walk
Fast Speed*
6.82 ± 0.26 7.56 ± 0.20 7.25 ± 0.22 8.24 ± 0.21 <.001 .71 .57
Sorensen's* 126.5 ± 10.1a 104.9 ± 7.9a 139.2 ± 8.9a 85.7 ± 8.1b <.001 .71 .08
  1. Note: tabled values are mean ± SE unless otherwise indicated. Variables denoted by an asterisk indicate values are least square mean ± SE, which are adjusted for BMI. For those variables in which there was evidence that differences between LBP and No LBP were dependent on sex (i.e. group by sex interaction p <.10), group comparisons were performed within males and females. Superscripts a and b indicate that group means not sharing a common letter are significantly different within each sex (Fisher's LSD, p <.05).