Table 2 Intra-rater reliability. Twenty healthy subjects tested twice by A or B. Further explanations in Table 1.
10-test package (including 16 sub-tests): | Forward bending (cm) | Modified Schober (cm) | Lateral bending (cm) | Trunk rotation (°) | Active-straight-leg raise (°) | Cervical bending (°) | Cervical rotation (°) | Abdom. endurance (sec) | Mod. Biering-Sørensen (sec.) | Modified PILE (kg) |  | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Â | Â | Â | Right | Left | Right | Left | Right | Left | Forward | Backward | Right | Left | Â | Â | Lumbar | Cervial |
Examiner A | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
ICC | .95 | .87 | .99 | .94 | .92 | .96 | .99 | .97 | .86 | .98 | .94 | .86 | .90 | .92 | .93 | .95 |
95% CI of ICC | .89–.99 | .68–.96 | .95–1.00 | .82–.98 | .76–.97 | .87–.99 | .96–1.00 | .92–.99 | .67–.96 | .95–.99 | .82–.98 | .63–.95 | .75–.97 | .75–.97 | .80–.98 | .86–.98 |
SE of measurement | .9 | .3 | .5 | 1.0 | 3 | 3 | 2 | 3 | 2 | 2 | 2 | 3 | 9 | 16 | 2.3 | 1.5 |
Mean | 2.5 | 7.1 | 21.2 | 21.0 | 55 | 53 | 75 | 78 | 58 | 75 | 72 | 74 | 66 | 117 | 31.8 | 20.8 |
Mean difference | -.7 | .2 | -.1 | .1 | 1 | -1 | 0 | 1 | 2 | 1 | 1 | -1 | 7 | 4 | .8 | .4 |
95% CI of mean diff. | -1.6–.1 | -.1–.5 | -.5–.5 | -.9–1.1 | -2.6–3.6 | -3.8–1.8 | -1.6–1.4 | -1.7–3.3 | -.8–4.0 | -.5–2.5 | -1.4–3.0 | -3.8–1.4 | -2.7–15.7 | -12.3–19.3 | -1.6–3.2 | -1.1–1.9 |
p-value | NS | NS | NS | NS | NS | NS | NS | NS | NS | NS | NS | NS | NS | NS | NS | NS |
Intra-rater reliability | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + |
Examiner B | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
ICC | .95 | .79 | .73 | .86 | .46 | .83 | .97 | .93 | .62 | .80 | .82 | .82 | .65 | .20 | .97 | .94 |
95% CI of ICC | .86–.98 | .46–.93 | .37–.91 | .61–.95 | .13–.85 | .54–.94 | .90–.99 | .78–.97 | .12–.85 | .53–.94 | .53–.94 | .52–.94 | .18–.86 | .14–.85 | .89–.99 | .83–.98 |
SE of measurement | .9 | .7 | 1.6 | 1.4 | 7 | 5 | 3 | 4 | 6 | 5 | 4 | 4 | 17 | 17 | 2.4 | 2.9 |
Mean | 1.8 | 7.2 | 19.8 | 19.7 | 48 | 51 | 70 | 76 | 57 | 67 | 68 | 67 | 46 | 104 | 32.8 | 23.5 |
Mean difference | .4 | .2 | -.7 | -.2 | -8 | -1 | 0 | -1 | -1 | 3 | -1 | -1 | 3 | 33 | .0 | -1.8 |
95% CI of mean diff. | -.5–1.3 | -.5–.9 | -2.3–.9 | -1.6–1.2 | -14.7–.3 | -6.3–4.3 | -2.8–3.0 | -4.9–3.5 | -6.7–5.6 | -2.0–7.6 | -5.4–2.6 | -4.7–2.7 | -14.3–20.5 | 15.3–50.5 | -2.4–2.4 | -4.7–1.1 |
p-value | NS | NS | NS | NS | .04 | NS | NS | NS | NS | NS | NS | NS | NS | .002 | NS | NS |
Intra-rater reliability | + | + | + | + | - | + | + | + | + | + | + | + | + | - | + | + |