NOTES

Takes with OptiTrack gaps repaired by interpolation (bones and bone markers only):
- P3 M5 -> P3 M5.I
- P3 M6 -> P3 M6.I
- P13 M8 -> P13 M8.I
- P13 M9 -> P13 M9.I
- P15 M3 -> P15 M3.I

Non-repairable takes:
- P3 M8: OptiTrack data contain errors; this is not a local gap suitable for interpolation.
- P13 M1: data are desynchronized due to a hardware issue in the insoles.
