Table 4

Relative changes of mean QUS parameters in postmenopausal groups with respect to control group (%)
Group 0 Group 1 Group 2 Group 3
relative changes of mean speed of sound
Δwl_SOS 1.42 1.76 2.40
Δl_SOS 1.67 1.88 2.71
Δwn_SOS 21.24 20.71 17.28
relative changes of mean normalized broadband ultrasound attenuation
Δwl_nBUA 21.88 30.46 39.68
Δl_nBUA 22.58 29.04 40.39
Δwn_nBUA 35.90 41.03 48.72
relative changes of mean stiffness index
Δwl_STI 16.91 17.15 36.61
Δl_STI 18.54 24.12 35.35
Δwn_STI 34.30 37.79 45.35

The prefixes ‘l_’, ‘wl_’ and ‘wn_’ mean “loading”, “without loading” and “weight-normalized”, respectively.

Liu et al.

Liu et al. BMC Musculoskeletal Disorders 2012 13:70   doi:10.1186/1471-2474-13-70

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