Table 1

QUS parameters measured among different subject groups
Group 0 (control) Group 1 Group 2 Group 3
With loading

SOS

(m·s-1)

1596.84 ± 33.16 1570.24 ± 36.98a 1566.80 ± 32.60a 1553.51 ± 18.83a

nBUA

(dB·MHz-1·cm-1)

19.66 ± 4.90 15.22 ± 3.18b 13.95 ± 5.87b 11.72 ± 3.19b,c
STI 86.08 ± 19.44 70.12 ± 16.69a 65.32 ± 22.19a 55.65 ± 14.24a
Without loading

SOS

(m·s-1)

1596.67 ± 30.18 1574.07 ± 35.83a 1568.63 ± 31.77a 1558.36 ± 15.60a

nBUA

(dB·MHz-1·cm-1)

18.65 ± 4.18 14.57 ± 2.92b 12.97 ± 5.45b 11.25 ± 3.07b,c
STI 83.21 ± 16.66 69.14 ± 15.96b 68.94 ± 14.76b 52.75 ± 9.66b,c

a Significantly different from group 0 (p < 0.05).

b Significantly different from group 0 (p < 0.005).

c significantly different from group 1 (p < 0.005).

Liu et al.

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

Open Data