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Table 7 Absolute error (mean ± STD) along each coordinate for each subject using the \({\text{NAP}}_{\upomega }^{\left( 1 \right)}\) algorithm

From: In vivo estimation of the shoulder joint center of rotation using magneto-inertial sensors: MRI-based accuracy and repeatability assessment

Coordinate

Subject 1

Subject 2

Subject 3

Subject 4

Subject 5

Mean

x

7.8 ± 5º,*

15.0 ± 11º,*

8.0 ± 4º,*

3.2 ± 3º,*

9.5 ± 5º

8.7 ± 7

y

10.7 ± 8

22.4 ± 7

4.3 ± 3

15.3 ± 3

11.2 ± 4

12.8 ± 8

z

5.0 ± 3*

22.5 ± 10

4.2 ± 4

13.5 ± 4

5.8 ± 5*

10.3 ± 9

  1. A star and/or a circle in the x row indicate a statistically significant difference respectively from y and/or z directions, while in the z row a star indicates a statistically significant difference from y direction (p < 0.016, Student’s t test with Bonferroni’s correction)
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ISSN: 1475-925X

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