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Table 6 Discriminant ability

From: Reliability, validity and discriminant ability of the instrumental indices provided by a novel planar robotic device for upper limb rehabilitation

Robotic indices

Patients with stroke (N = 48) Mean (SD)

Healthy subjects (N = 40) Mean (SD)

Unpaired t test (P)

Effect Size

Duration (s)

193.7 (107.30)

93.30 (53.50)

< 0.001

1.18

Velocitymean (m/s)

0.05 (0.04)

0.09 (0.05)

< 0.001

0.86

Lengthtot (m)

1.80 (0.92)

2.67 (0.24)

< 0.001

1.30

Lenght1 (m)

0.25 (0.16)

0.39 (0.03)

< 0.001

1.17

Lenght2 (m)

0.38 (0.14)

0.46 (0.08)

0.001

0.75

Lenght3 (m)

0.13 (0.03)

0.14 (0.01)

0.004

0.62

Lenght4 (m)

0.34 (0.18)

0.47 (0.07)

< 0.001

0.98

Lenght5 (m)

0.24 (0.17)

0.39 (0.04)

< 0.001

1.20

Lenght6 (m)

0.20 (0.17)

0.35 (0.08)

< 0.001

1.17

Lenght7 (m)

0.05 (0.04)

0.09 (0.00)

< 0.001

1.31

Lenght8 (m)

0.21 (0.17)

0.38 (0.05)

< 0.001

1.33

Score

7.91 (2.20)

9.74 (0.47)

< 0.001

1.16

Worktot (J)

19.88 (12.75)

19.03 (9.11)

0.717

Worktan (J)

10.22 (8.65)

14.62 (6.98)

0.010

0.56

  1. Descriptive statistics for the robotic indices in patients with stroke (N = 48) and healthy subjects (N = 40). Comparison is assessed by means of t tests. For significant differences, the Effect Size is also reported