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Table 2 Comparisons between mean daily activity monitor data from the Actigraph and Actical, with- and without conversion by a regression equation, expressed as raw and log-transformed data (n = 56, total of 600 observation days).

From: Comparison of two different physical activity monitors

  Actigraph Actical
  Measured Predicted CV Measured Predicted CV
  counts·min-1·day-1 % counts·min-1·day-1 %
Raw 216.2 216.5 11.7 188.0 187.0 12.2
Log-transformed 5.27 5.26 2.2 5.11 5.10 2.4
  1. Raw = raw activity monitor data.
  2. Log-transformed = activity monitor data after log-transformation.
  3. Measured = measured PA data.
  4. Predicted = prediction of PA based on the conversion of one brand to the other using a conversion equation.
  5. CV = coefficient of variation of the difference between measured PA ("Measured ") and that predicted ("Predicted") by conversion of one brand to the other.