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Table 2 Shear wave velocities in subjects aged ≤60 and >60 years

From: Measurements of the trapezius and erector spinae muscles using virtual touch imaging quantification ultrasound-Elastography: a cross section study

N = 278 Mean ± SD ≤ 60 years Mean ± SD > 60 years z-value p-value
Left trapezius 2.78 ± 0.38 2.81 ± 0.38 0.3953 0.3463
Right trapezius 2.74 ± 0.41 2.91 ± 0.23 2.05613 0.0052*
Left erector spinae 2.85 ± 0.52 3.11 ± 0.75 1.7048 0.0441*
Right erector spinae 2.84 ± 0.58 3.07 ± 0.49 1.9641 0.0248*
  1. Data not normally distributed: Wilcoxon Two-Sample Test (z-values); * = significant