Table 2

Test-retest reliability
Muscle function Side Mean Mean of difference SD of difference SEM Relative SEM (%) ICC ICC 95%CI
Handgrip ND 196.1 −8.4 28.9 20.4 10.4 0.949 [0.911 ; 0.971]
D 211.5 −1.2 29.6 20.9 9.9 0.957 [0.926 ; 0.975]
Elbow flexion ND 24.2 −0.3 3.4 2.4 10.0 0.969 [0.947 ; 0.981]
D 25.7 −0.6 4.2 3.0 11.7 0.954 [0.923 ; 0.973]
Elbow extension ND 19.0 −0.2 2.7 1.9 10.2 0.962 [0.936 ; 0.977]
D 19.2 −0.2 3.1 2.2 11.2 0.950 [0.916 ; 0.970]
Knee flexion ND 40.7 −1.5 7.3 5.2 12.7 0.945 [0.908 ; 0.968]
D 41.9 −1.4 8.3 5.8 14.0 0.930 [0.884 ; 0.958]
Knee extension ND 78.7 −5.3 17.1 12.1 15.4 0.945 [0.908 ; 0.968]
D 84.5 −6.0 17.6 12.4 14.7 0.926 [0.870 ; 0.957]

ND: non-dominant hand side; D: dominant hand side; SD: standard deviation; SEM: standard error of measurement; ICC: intraclass correlation coefficient; CI: confidence interval.

Data are provided in N for handgrip and Nm for the other muscle functions tested (n = 56 subjects).

Hogrel et al.

Hogrel et al. BMC Musculoskeletal Disorders 2012 13:176   doi:10.1186/1471-2474-13-176

Open Data