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Table 1 Gait and balance features extracted from Mobility Lab software

From: Classification of Parkinson’s disease and essential tremor based on balance and gait characteristics from wearable motion sensors via machine learning techniques: a data-driven approach

Gait – lower limb

 Cadence [left] (steps/min)

Cadence [right] (steps/min)

 Double support [left] (%GC)

Double support [right] (%GC)

 Gait speed [left] (m/s)

Gait speed [right] (m/s)

 Lateral step variability [left] (cm)

Lateral step variability [right] (cm)

 Foot strike angle [left] (degrees)

Foot strike angle [right] (degrees)

 Toe off angle [left] (degrees)

Toe off angle [right] (degrees)

 Single limb support [left] (%GC)

Single limb support [right] (%GC)

 Stance [left] (%GC)

Stance [right] (%GC)

 Step duration [left] (s)

Step duration [right] (s)

 Stride length [left] (m)

Stride length [right] (m)

 Swing [left] (%GC)

Swing [right] (%GC)

 Terminal double support [left] (%GC)

Terminal double support [right] (%GC)

Gait – lumbar

 Coronal range of motion (degrees)

 

 Sagittal range of motion (degrees)

 

 Transverse range of motion (degrees)

 

Gait – trunk

 Coronal range of motion (degrees)

 

 Sagittal range of motion (degrees)

 

 Transverse range of motion (degrees)

 

Postural sway

 Mean velocity (m/s)

Acc - path length (m/s2)

 Mean velocity [coronal] (m/s)

Acc - path length [coronal] (m/s2)

 Mean velocity [sagittal] (m/s)

Acc - path length [sagittal] (m/s2)

 Acc - RMS sway (m/s2)

Acc - RMS sway (degrees)

 Acc - RMS sway [coronal] (m/s2)

Acc - RMS sway [coronal] (degrees)

 Acc - RMS Sway [sagittal] (m/s2)

Acc - RMS sway [sagittal] (degrees)

 Sway area radius [coronal] (degrees)

Acc - range (m/s2)

 Sway area rotation (degrees)

Acc - range [coronal] (m/s2)

 Sway area (degrees2)

Acc - range [sagittal] (m/s2)

  1. Abbreviation: Acc Acceleration, GC Gait cycle, RMS Root mean square