TABLE 2.
Measurement reliability of four common clinical tests for assessing hamstring flexibility in young adults.
| Outcomes | Mean ± SD | Mean ± SD | ICC | P | 95% CI | SEM | 95% CI SEM | MDD95 |
|---|---|---|---|---|---|---|---|---|
| Interrater reliability (n = 43): S1 vs. S2 | ||||||||
| SLR (°) | 72.65 ± 15.23 | 71.05 ± 14.55 | 0.929 | 0.000 | 0.870–0.962 | 3.97 | 64.07–79.63 | 11.00 |
| PKE (°) | 148.83 ± 13.42 | 147.57 ± 11.18 | 0.929 | 0.000 | 0.870–0.962 | 3.29 | 141.75–154.65 | 9.12 |
| SRT (cm) | 4.67 ± 10.06 | 4.88 ± 10.80 | 0.986 | 0.000 | 0.973–0.992 | 1.23 | 2.36–7.20 | 3.42 |
| TTT (cm) | 2.27 ± 9.41 | 3.19 ± 9.65 | 0.979 | 0.000 | 0.959–0.989 | 1.38 | 0.02–5.44 | 3.83 |
| Test-retest reliability (n = 40): S1 vs. S3 | ||||||||
| SLR (°) | 73.27 ± 15.53 | 70.67 ± 15.25 | 0.944 | 0.000 | 0.886–0.971 | 3.64 | 64.83–79.10 | 10.09 |
| PKE (°) | 149.30 ± 13.44 | 147.96 ± 11.67 | 0.923 | 0.000 | 0.856–0.959 | 3.49 | 141.78–155.47 | 9.68 |
| SRT (cm) | 4.88 ± 9.86 | 5.62 ± 10.28 | 0.974 | 0.000 | 0.951–0.986 | 1.62 | 2.07–8.44 | 4.50 |
| TTT (cm) | 2.47 ± 9.24 | 4.38 ± 9.16 | 0.964 | 0.000 | 0.885–0.985 | 1.75 | 0.00–6.85 | 4.84 |
Abbreviations: ICC, intraclass correlation coefficient; CI, confidence interval; SEM, standard error of measurement; MDD95, minimum detectable difference based on a 95% confidence interval; SLR, straight leg raise test; PKE, passive knee extension; SRT, sit and reach test; and TTT, toe touch test; S1, Session 1; S2, Session 2; S3, Session 3.