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Relative coordinate systems topology for upper limbs assessment, origin segments (child local coordinate systems) are expressed relative to parent local coordinate systems. 0 corresponds to a global coordinate system. Point numbers are presented in Figure 1.
| Motion | 1 | 4 | 5 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Child | 1 | 4 | 5 | 14 | 15 | 4 | 5 | 16 | 17 | 18 | 19 | 16 | 17 | 18 | 19 | 18 | 19 |
| Parent | 0 | 2 | 2 | 2 | 2 | 14 | 15 | 14 | 15 | 14 | 15 | 4 | 5 | 4 | 5 | 16 | 17 |
