Table 2 Accuracy of estimated gesture type and grade error in different motions (wrist extension/flexion (I), clenching (II), and thumb extension/flexion (III)).

From: Clinical implementation of a bionic hand controlled with kineticomyographic signals

Gestures

Gesture type

Gesture gradea

Accuracy (%)

RMSE (°)

EMR (%)

MAE (°)

MRE (%)

Motions I and II

100

5.8

\(\approx\) 8

11.27

3.1413

Motions I and III

100

4.06

\(\approx\) 5.7

6.24

1.3236

Motions II and III

100

6.9

\(\approx\) 8.6

10.34

1.3544

Motions I, II, and III

100

7.26

\(\approx\) 10.3

15.3

4.1626

  1. RMSE, root mean square error; EMR, error in movement range; MAE, maximum absolute error; MRE, mean relative error.
  2. aGesture grade is the stage of the motion completeness in a range between 90 to 180 degrees.
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