Table 5 Measure of Separation using the Silhouette’s value (S_v)

Acceleration

0.513

0.772*

0.793*

Angular Acceleration

0.784*

0.651

0.687

Velocity

0.535

0.421

0.725*

Angular Velocity

0.708

0.711

0.692

Angle

0.762*

0.783*

0.711*

All features combined

0.617

0.701

0.593

Upper Limb Combination

0.754

0.754

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Preliminary Parameters (Accelerometer)

Mean

0.305

0.282

0.319

Variance

0.222

0.274

0.334

RMS value

0.406

0.345

0.311

Energy

0.652

0.669

0.647

Preliminary Parameters (Gyroscope)

Mean

0.528

0.277

0.294

Variance

0.505

0.246

0.299

RMS value

0.568

0.255

0.33

Energy

0.673

0.681

0.633

Other Domains (Max values):

Entropy

0.533

0.487

0.479

Power Spectral Density

0.228

0.354

0.412

DTW

0.562

0.429

0.555