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Table 2 Statistics of within- and between-therapist agreement

From: Within- and between-therapist agreement on personalized parameters for robot-assisted gait therapy: the challenge of adjusting robotic assistance

Gait speed (in km/h)

Absolute differences

Bland–Altman statistics

 < 50%

 < 75%

 < 100%

Mean

LoA

Within-therapist difference mod

0.1 (2%)

0.2 (5%)

0.6 (14%)

0.10 (2%)

− 0.30–0.50 (− 7–12%)

Within-therapist difference vig

0.1 (2%)

0.1 (2%)

0.3 (12%)

0.04 (1%)

− 0.22–0.31 (− 5–7%)

Between-therapist difference mod

0.2 (5%)

0.2 (5%)

0.5 (12%)

0.07 (2%)

− 0.38–0.54 (− 9–13%)

Between-therapist difference vig

0.2 (5%)

0.3 (7%)

0.5 (12%)

0

(0%)

− 0.54–0.54 (− 13–13%)

Bodyweight support (in %)

 < 50%

 < 75%

 < 100%

Mean

LoA

Within-therapist difference mod

2 (2%)

3 (3%)

7

(7%)

− 1.6

(2%)

− 8.0–4.9 (− 8–5%)

Within-therapist difference vig

2 (2%)

4 (3%)

6 (6%)

0.5 (1%)

− 11.5–12.5 (− 12–13%)

Between-therapist difference mod

5 (5%)

7 (7%)

31 (31%)

1.5 (2%)

− 18.7–21.8 (− 19–22%)

Between-therapist difference vig

2 (2%)

5 (5%)

15 (15%)

0.4

(0%)

− 12.5–11.8 (− 13–12%)

Robotic assistance (in %)

 < 50%

 < 75%

 < 100%

Mean

LoA

Within-therapist difference mod

10 (5%)

10 (5%)

15 (8%)

− 0.4 (0%)

− 19.3–18.5 (− 10–10%)

Within-therapist difference vig

20 (10%)

28 (14%)

45 (22%)

− 3.3 (0%)

− 46.4–39.75 (− 23–20%)

Between-therapist difference mod

15 (8%)

25 (13%)

60 (30%)

8.0 (4%)

− 38.6–54.3 (− 19–27%)

Between-therapist difference vig

20 (10%)

35 (18%)

60 (30%)

8.0 (4%)

− 50.0–66.1 (− 25–33%)

  1. The first three columns contain the cut-off values below which 50%, 75% or 100%, respectively, of the differences can be found. The cut-off values represent the median, the 75%-quartile and the maximal difference for both the moderate (mod.) and the vigorous (vig.) intensities. The other two columns represent the Bland–Altman statistics with the mean and the upper and lower limits of agreement (LoA). The values in the brackets contain the differences as percentage of the maximum difference possible