Research Article

Assessing User Transparency with Muscle Synergies during Exoskeleton-Assisted Movements: A Pilot Study on the LIGHTarm Device for Neurorehabilitation

Table 2

Pairwise dot products of the mean spatial synergies (centroids) in the different experimental conditions. Free = free movements, No-Comp = not compensated, Comp = compensated. n.a. = not available data, / = comparison with the same condition.

Centroid 1Centroid 2Centroid 3Centroid 4
FreeNo-CompCompFreeNo-CompCompFreeNo-CompCompFreeNo-CompComp

Free/0.890.92/0.940.95/0.880.82/n.a.n.a.
No-Comp0.89/0.870.94/0.930.88/0.86n.a./n.a.
Comp0.920.87/0.950.93/0.820.86/n.a.n.a./