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Table 3 Summary of methods employed in signal analysis

From: Motor recovery monitoring using acceleration measurements in post acute stroke patients

  Norm based Signal Magnitude Area based Energy based
Domain Time Time Frequency
Metric Euclidean distance Manhattan distance Euclidean distance
Activity measured Cumulative velocity Cumulative velocity of Energy of activity
   average activity in x, y, and in a 10 minute window
   z directions  
Calculation method Every sample Average value over 10 minutes Window of 10 minutes
Sensitivity Low High for normal patients and Low High
   for severely disabled patients  
Computational Low Low High